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Our study aimed to assess the effect of weekend versus weekday hospital admissions on all-cause mortality in patients with acute myocardial infarction (AMI) and COVID-19 during the COVID-19 pandemic. We analyzed data from the National Inpatient Sample (NIS) 2020, identifying patients with co-existing AMI and COVID-19 admitted on weekdays and weekends. Baseline demographics, comorbidities, and outcomes were assessed. A multivariable regression analysis was conducted, adjusting for confounders to determine the odds of all-cause mortality. Among 74,820 patients, 55,145 (73.7%) were admitted on weekdays, while 19,675 (26.3%) were admitted on weekends. Weekend admissions showed slightly higher proportions of men (61.3% vs. 60%) and whites (56.3% vs. 54.9%) with a median age of 73 years (range: 62-82). The overall all-cause mortality had an odds ratio (OR) of 1.00 (95% CI, 0.92-1.09; P = 0.934). After adjusting for covariates, there was no significant associations between mortality and hospital type (rural: OR = 1.04; 95% CI, 0.78-1.39; P = 0.789; urban teaching: OR = 1.04; 95% CI, 0.94-1.14; P = 0.450) or geographic region (Northeast: OR = 1.16; 95% CI, 0.96-1.39; P = 0.12; Midwest: OR = 0.99; 95% CI, 0.83-1.17; P = 0.871; South: OR = 0.97; 95% CI, 0.85-1.12; P = 0.697; West: OR = 0.94; 95% CI, 0.77-1.15; P = 0.554). There was no significant difference in the rate of all-cause mortality among patients admitted for AMI and COVID-19 between weekdays and weekends.

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Introduction: Introduction: among the groups more affected by the COVID-19 pandemic were patients undergoing chronic hemodialysis (HD) treatment due to their comorbidities, advanced age, impaired innate and adaptive immune function, and increased nutritional risk due to their underlying inflammatory state. All of these factors contribute to a higher risk of severe complications and worse outcomes compared to the general population when infected with SARS-CoV-2. Objective: the objective of this study was to describe the nutritional characteristics of and their potential association with the prognosis of COVID-19 in patients undergoing chronic HD treatment. Method: a descriptive, retrospective, observational design. All cases of COVID-19 in patients undergoing chronic treatment at the Hemodialysis Unit of Hospital de Manises, Valencia, Spain, from the start of the pandemic to before vaccination were included. Results: for that, 189 patients were studied, who received chronic HD treatment in the hospital unit, 22 patients were diagnosed with COVID-19 (12 %) in that period. The mean age was 71 years, 10 were women, the Charlson index was 6.59 points, diabetes mellitus 10, vintage HD 51.6 months, 2 patients had previously received a currently non-functioning kidney transplant, 16 had arteriovenous fistula as vascular access, and 6 had central vascular access. The mean dialysis session time was 220.14 minutes and the initial value of the single dose of the Kt/V pool was 1.7. 16 patients had body composition measurement, a strong association (p < 0.05) was identified between mortality and BMI, as well as mortality and FTI. Furthermore, the differences between deceased and surviving groups in the serum levels of various variables related to nutritional status were analyzed, finding significant differences with p < 0.05 in the value of triglycerides and ferritin. Conclusions: higher body mass index and higher body fat content, along with lower baseline levels of triglycerides and ferritin, were significantly associated with higher COVID-19 mortality in patients on chronic hemodialysis. These findings suggest that the initial nutritional status of these patients can significantly influence the prognosis of SARS-CoV-2 infection.

Introducción: Introducción: entre los grupos más afectados por la pandemia de COVID-19 se encuentran los pacientes en tratamiento crónico de hemodiálisis (HD) por sus comorbilidades, edad avanzada, deterioro de la función inmune innata y adaptativa, y mayor riesgo nutricional por su estado inflamatorio de base. Todos estos factores contribuyen a un mayor riesgo de complicaciones graves y peores resultados en comparación con la población general cuando se infectan con SARS-CoV-2. Objetivo: el objetivo de este estudio es describir las características nutricionales y su potencial asociación con el pronóstico de COVID-19 en pacientes en tratamiento crónico de HD. Método: diseño observacional retrospectivo y descriptivo. Se incluyeron todos los casos de COVID-19 en pacientes en tratamiento crónico en la Unidad de Hemodiálisis del Hospital de Manises, Valencia, desde el inicio de la pandemia hasta antes de la vacunación. Resultados: de 189 pacientes que recibieron tratamiento de HD crónica en la unidad hospitalaria, 22 pacientes fueron diagnosticados con COVID-19 (12 %) en ese período. La edad media fue de 71 años, 10 eran mujeres, índice de Charlson de 6,59 puntos, diabetes mellitus 10, tiempo en diálisis 51,6 meses, 2 pacientes habían recibido previamente un trasplante renal actualmente no funcionante, 16 tenían fístula arteriovenosa como acceso vascular, y 6 tenían acceso vascular central. El tiempo medio de la sesión de diálisis fue de 220,14 minutos y el valor inicial de la dosis única del pool de Kt/V fue de 1,7. Tenían medición de la composición corporal 16 pacientes, se identificó una fuerte asociación (p < 0,05) entre mortalidad e IMC, así como mortalidad y FTI. Además las diferencias entre los grupos de fallecidos y sobrevivientes en los niveles séricos de diversas variables relacionadas con el estado nutricional fueron analizados, encontrando diferencias significativas con p < 0,05 en el valor de triglicéridos y ferritina. Conclusiones: un índice de masa corporal más alto y un mayor contenido de grasa corporal, junto con niveles basales más bajos de triglicéridos y ferritina, se asocian significativamente a una mayor mortalidad por COVID-19 entre los pacientes en hemodiálisis crónica. Estos hallazgos sugieren que el estado nutricional inicial de estos pacientes puede influir significativamente en el pronóstico de la infección por SARS-CoV-2.

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Background: Body Mass Index (BMI) has a significant impact on Coronavirus disease (COVID-19) patient outcomes; however, major adverse cardiac and cerebrovascular outcomes in patients with severe sepsis have been poorly understood. Our study aims to explore and provide insight into its association. Methods: This is an observational study looking at the impact of BMI on COVID-19-severe sepsis hospitalizations. The primary outcomes are adjusted odds of all-cause in-hospital mortality, respiratory failure, and major adverse cardiac and cerebrovascular events (MACCE), which include acute myocardial infarction, cardiac arrest, and acute ischemic stroke. The secondary outcome was healthcare resource utilization. Coexisting comorbidities and patient features were adjusted with multivariable regression analyses. Results: Of 51,740 patients with severe COVID-19-sepsis admissions, 11.4% were overweight, 24.8% had Class I obesity (BMI 30-34.9), 19.8% had Class II obesity (BMI 35-39.9), and 43.9% had the categorization of Class III obesity (BMI >40) cohorts with age>18 years. The odds of MACCE in patients with class II obesity and class III obesity (OR 1.09 and 1.54; 95CI 0.93-1.29 and 1.33-1.79) were significantly higher than in overweight (p < 0.001). Class I, Class II, and Class III patients with obesity revealed lower odds of respiratory failure compared to overweight (OR 0.89, 0.82, and 0.82; 95CI 0.75-1.05, 0.69-0.97, and 0.70-0.97), but failed to achieve statistical significance (p = 0.079). On multivariable regression analysis, all-cause in-hospital mortality revealed significantly higher odds in patients with Class III obesity, Class II, and Class I (OR 1.56, 1.17, and 1.06; 95CI 1.34-1.81, 0.99-1.38, and 0.91-1.24) vs. overweight patients (p < 0.001). Conclusions: Patients with Class II and Class III obesity had significantly higher odds of MACCE and in-hospital mortality in COVID-19-severe sepsis admissions.

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Key Clinical Message: Subacute thyroiditis which is typically characterized by cervical pain and fever is caused by viral infection and is seen after SARS-CoV-2 vaccination. Here we report a post-vaccination subacute thyroiditis after SARS-CoV-2 vaccination. Abstract: Subacute thyroiditis (SAT) is possibly caused by a viral infection and is typically characterized by cervical pain and fever. SAT associated with SARS-CoV-2 infection or SARS-CoV-2 vaccination has been reported, albeit in limited numbers. A 34-year-old woman was referred to our clinic with typical SAT symptoms. The diagnosis was confirmed through thyroid scintigraphy after receiving the SARS-CoV-2 vaccination, despite testing negative for COVID-19 via RT-PCR. There is a theoretical correlation between SARS-CoV-2 vaccination and SAT. Vaccination may have a direct or indirect impact on the thyroid, but further studies are required to confirm this relationship. A systematic review of the literature of similar cases was performed for comparison. Ultimately, the overall benefits of SARS-CoV-2 vaccination outweigh the potential adverse effects. Therefore, these types of reports should not divert attention from the actual reality.

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@#Objective: Coronavirus disease (COVID-19) vaccinations have been shown to prevent infection with efficacies ranging from 50% to 95%. This study assesses the impact of vaccination on the clinical severity of COVID-19 during the second wave in Brunei Darussalam in 2021, which was due to the Delta variant. Methods: Patients included in this study were randomly selected from those who were admitted with COVID-19 to the National Isolation Centre between 7 August and 6 October 2021. Cases were categorized as asymptomatic, mild (symptomatic without pneumonia), moderate (pneumonia), severe (needing supplemental oxygen therapy) or critical (needing mechanical ventilation) but for statistical analysis purposes were dichotomized into asymptomatic/mild or moderate/severe/critical cases. Univariate and multivariable analyses were conducted to identify risk factors associated with moderate/severe/critical disease. Propensity score-matched analysis was also performed to evaluate the impact of vaccination on disease severity. Results: The study cohort of 788 cases (mean age: 42.1 + 14.6 years; 400 males) comprised 471 (59.8%) asymptomatic/mild and 317 (40.2%) moderate/severe/critical cases. Multivariable logistic regression analysis showed older age group (>45 years), diabetes mellitus, overweight/obesity and vaccination status to be associated with increased severity of disease. In propensity score-matched analysis, the relative risk of developing moderate/severe/critical COVID-19 for fully vaccinated (two doses) and partially vaccinated (one dose) cases was 0.33 (95% confidence interval [CI]: 0.16–0.69) and 0.62 (95% CI: 0.46–0.82), respectively, compared with a control group of non-vaccinated cases. The corresponding relative risk reduction (RRR) values were 66.5% and 38.4%, respectively. Vaccination was also protective against moderate/severe/critical disease in a subgroup of overweight/obese patients (RRR: 37.2%, P = 0.007). Discussion: Among those who contracted COVID-19, older age, having diabetes, being overweight/obese and being unvaccinated were significant risk factors for moderate/severe/critical disease. Vaccination, even partial, was protective against moderate/severe/critical disease.

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@#Objective: This paper summarizes and evaluates a test-based strategy for early return to work for health-care workers (HCWs) with mild coronavirus disease in Brunei Darussalam during the Omicron wave in February 2022 and compares the characteristics of HCWs by how long it took them to return to work. Methods: The early return-to-work strategy involved testing on day 3 of infection with reverse transcription–polymerase chain reaction and with a rapid antigen test on days 5 and 6 or days 5 and 7. Data about infected HCWs were extracted from the Ministry of Health’s public health surveillance database. Percentages and proportions were used for descriptive statistics, and Pearson’s chi-squared test and the paired t-test were used to compare return-to-work patterns with demographic factors and vaccination status of the HCWs, as well as between cycle threshold (Ct) values and occupational groups of HCWs. Results: From 15 February to 15 March 2022, a total of 1121 HCWs were notified as being infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Of these, 175 (15.6%) were able to return to work on day 4 of their infection, 153 (13.6%) on day 6 and 268 (23.9%) on day 7; 525 (46.8%) required 10 days of home isolation. Statistically significant associations were observed between return-to-work periods and occupational group (P < 0.01) and Ct value (P < 0.01), but not between return to work and age, sex or vaccination status. Discussion: This test-based strategy ensured a balance between mitigating a shortage of HCWs and enabling them to return to work early without compromising their safety and that of their patients.

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OBJECTIVE: The aim of this study was to determine the development of sarcopenia in a COVID-19 intensive care unit population by sequential quadriceps and diaphragm ultrasound and its relationship with hospital outcomes. METHODS: We assessed muscle thickness, cross-sectional area, fascicle length, pennation angle, and echo intensity within 48 h after intubation, at days 5 and 10 and at discharge from the intensive care unit in 30 critically ill patients with confirmed COVID-19. RESULTS: A different evolution of muscle thickness of the diaphragm and m. rectus femoris was observed; the changes between the two muscles were not correlated (Pearson's χ2 3.91, P = 0.419). The difference in muscle thickness was linked to the outcome for both m. rectus femoris and diaphragm, with the best survival seen in the group with stable muscle thickness. The greatest loss of muscle thickness occurred between days 5 and 10. The echo intensity was higher in the patients with increased muscle thickness, who also had a worse prognosis. There was a correlation between cross-sectional area on day 5 and handgrip strength (r = 0.290, P = 0.010). Only 31% of patients were able to return to their preadmission residence without any additional rehabilitation. CONCLUSIONS: Muscle atrophy and decline in muscle strength appear in the earliest stages after admission to the intensive care unit and are related to functional outcome.

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Introduction: In Senegal, molecular diagnosis was widely used for the detection and management of COVID-19 patients. However, genomic surveillance was very limited in the public sector. This study aimed to share the experience of a Senegalese public sector laboratory in response to the COVID-19 pandemic, and to describe the distribution of variants circulating in 2020 and 2021.Methodology: From July 2020 to December 2021, SARS-CoV-2 qRT-PCR was performed on nasopharyngeal samples from travelers and symptomatic patients at the Bacteriology and Virology Laboratory (LBV) of the Aristide le Dantec University Teaching Hospital. Samples with a cycle threshold (Ct) ≤ 30 were selected for whole-genome sequencing (WGS) using the Nanopore technology. In-house scripts were developed to study the spatial and temporal distribution of SARS-CoV-2 variants in Senegal, using our sequences and those retrieved from the GISAID database.Results: Of 8,207 patients or travelers screened for SARS-CoV-2, 970 (11.8%) were positive and 386 had a Ct ≤ 30. WGS was performed on 133 samples. Concomitantly with high-quality sequences deposited in the GISAID database covering nine cities in Senegal in 2020 and 2021 (n = 1,539), we observed a high circulation of the 20A (B.1, B.1.416 and B.1.620) and 20B (B.1.1.420) lineages in 2020, while most of the samples belonged to Delta variants (AY34 and AY.34.1, 22%) in 2021.Conclusions: Despite its late involvement, COVID-19 diagnosis was routinely performed in LBV, but genomic characterization remained challenging. The genomic diversity of SARS-CoV-2 strains in Senegal reflected that observed worldwide during the first waves of the pandemic.

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Coronavirus disease 2019 (COVID-19) caused by a novel strain of coronavirus belonging to the genus Beta coronavirus named Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) emerged as a major pandemic worldwide. This contagious virus had spread in many different forms, and patients have demonstrated a wide range of symptoms, ranging from moderate to severe illness. This study aims to highlight the important associations between SARS-CoV-2 infection, vaccination, and possible complications at the Libyan International Medical University, Benghazi. This crosssectional survey was conducted among students and their families at Libyan International Medical University in Benghazi, Libya. Among the 100 participants, 72% were between the ages of 18 and 39. Up to (59%) of participants were men. As for the infection with COVID-19, 77% of participants were infected. Most of the participants had no chronic diseases (69%); however, the most common chronic disease was diabetes mellitus (13%). 82% of participants were vaccinated; the most common types of vaccines administered were Sinopharm and Sputnik V (24%). Following vaccination, 71% of participants had no COVID-19 infection, while 29% did get the infection. Regarding this study, after COVID-19 infection, 66% of participants had no complications; however, 17% had pulmonary complications, which was the most common complication among the participants. As for the complications following the vaccination, 81% of participants had none, while there were pulmonary and neurological complications in 7­6%. The results of the study showed that the most frequent complications noticed among the participants following the COVID-19 infection and vaccination were pulmonary and neurological complications.

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Objectives: To compare different inflammatory markers in various coronavirus disease 2019 severity groups. METHODS: The cross-sectional, retrospective, comparative study was conducted at the Central Park Teaching Hospital, Lahore, Pakistan, and comprised data from April to June 2021 of coronavirus disease 2019 inpatients. The data was divided into mild, moderate and severe/critical category using the World Health Organisation interim guidelines. Data was analysed using SPSS 22. RESULTS: Of the 50 patients, 29(58%) were males and 21(42%) were females. The overall mean age was 54.12±21.23 years. The mean age was 62±17.1years in critical group compared to 50±19.7 years in mild and 52±15.9 years in moderate groups. There were 8(16%) patients in the mild group, 16(32%) in the moderate group and 26(52%) in the critical severity group. Mortality was the outcome in overall 19(38%) cases, and 14(73.7%) of them were in the critical group (p=0.03). C reactive protein, interleukin-6, serum ferritin and D-dimer levels were significantly different among the groups (p<0.05). CONCLUSIONS: Older people were found to have experienced coronavirus disease 2019 in more severe forms. The inflammatory markers were significantly high in patients with severe disease and were associated with high mortality.

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OBJECTIVES: To assess the impact of COVID-19 in patients affected by OLP, in terms of level of pain, stress, depression and anxiety and their impact on the clinical manifestation of the disease. MATERIAL AND METHODS: A longitudinal design was employed. Psychometric evaluations of anxiety, stress, and depression were conducted using the DASS21 scale, while pain levels were measured using the VAS scale. Clinical diagnosis and phenotype evaluation were performed. RESULTS: The study included 24 patients with an average age of 62.9 years, with 70.8% presenting erosive OLP. Results revealed a significant worsening of anxiety, stress, and depression scores during the pandemic. Pain level (1.5 ± 1.2 pre-pandemic VS 3.8 ± 1.1 during the pandemic, p < 0.0001) was also negatively affected. CONCLUSIONS: These findings highlight the potential interplay between psychological stress and oral health conditions, emphasizing the need for a comprehensive understanding of OLP's complex etiology and its response to external stressors. CLINICAL RELEVANCE: Multidisciplinary care strategies to address both physical and psychological aspects of OLP patients is recommended following the present findings. Further research is warranted to confirm these observations in larger multicenter studies and to guide tailored guidance approaches for OLP patients during challenging times.

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Introducción: La enfermedad por coronavirus ha causado daño miocárdico, razón que ha impactado en las ciencias médicas por lo que ha sido motivo de investigación. Objetivo: Mostrar a través de resultados de recientes investigaciones, los mecanismos mediante los cuales el virus SARS-CoV-2 produce daño miocárdico en los pacientes afectados por la COVID-19, y su influencia en el pronóstico a corto y largo plazo. Métodos: Se realizó una búsqueda bibliográfica de la literatura médica actualizada sobre el tema publicada en idioma inglés y español, indexado en varias bases de datos en el período comprendido de mayo de 2019 a mayo de 2022. De un total de 198 artículos en la revisión, cumplieron con los criterios de selección 78 artículos. Se excluyeron los que no contenían información precisa en cuanto al daño miocárdico provocado por el SARS-CoV-2. Resultados: Se han descrito varios mecanismos que pueden ser los desencadenantes entre los que se destacan: daño directo por angiotensina II, lesión inducida por hipoxia, daño microvascular miocárdico y síndrome de respuesta inflamatoria sistémica. Conclusiones: Los diferentes mecanismos por los cuales el virus SARS-CoV-2 produce daño miocárdico, hacen que los pacientes con la COVID-19 tengan más probabilidades de sufrir una lesión miocárdica. Las manifestaciones clínicas en pacientes con la COVID-19 como miocarditis, insuficiencia cardíaca, arritmias cardíacas, síndrome coronario agudo y derrame pericárdico, son más comunes en pacientes con antecedentes de enfermedad cardiovascular que desfavorecen su pronóstico(AU)

Introduction: Coronavirus disease has caused myocardial damage. This reality has impacted medical sciences and it has been the subject of research. Objective: To show, through the results of recent research, the mechanisms by which the SARS-CoV-2 virus produces myocardial damage in patients affected by COVID-19, and its influence on short- and long-term prognosis. Methods: A bibliographic search was carried out of the updated medical literature on the topic published in English and Spanish, indexed in several databases from May 2019 to May 2022. One hundred ninety-eight articles were included in the review, only 78 met the selection criteria. Those that did not contain precise information regarding myocardial damage caused by SARS-CoV-2 were excluded. Results: Several mechanisms have been described as probable triggers, standing out direct damage by angiotensin II, hypoxia-induced injury, myocardial microvascular damage and systemic inflammatory response syndrome. Conclusions: The different mechanisms by which SARS-CoV-2 virus produces myocardial damage make COVID-19 patients more likely to suffer myocardial injury. Clinical manifestations in COVID-19 patients such as myocarditis, heart failure, cardiac arrhythmias, acute coronary syndrome and pericardial effusion are more common in patients with history of cardiovascular disease, which do not favors their prognosis(AU)

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Although vaccines against COVID-19 are effective tools in preventing severe disease, recent studies have shown enhanced protection after vaccine boosters. The aim of our study was to examine the dynamics and duration of both humoral and cellular immune responses following a three-dose regimen of the BNT162b2 mRNA vaccine. In a longitudinal prospective study we enrolled 86 adults who received the BNT162b2 vaccine, 35 unvaccinated individuals with a history of mild COVID-19 and a control group of 30 healthy SARS-CoV-2 seronegative persons. We assessed the SARS-CoV-2-specific T cell responses and IgG production up to 12 months post the third BNT162b2 dose in 24 subjects. The vaccinated group had significantly higher IgG antibody levels after two doses compared to the convalescent group (p<0.001). After the third dose, IgG levels surged beyond those detected after the second dose (p<0.001). Notably, these elevated IgG levels were maintained 12 months post the third dose. After two doses, specific T cell responses were detected in 87.5% of the vaccinated group. Additionally, there was a significant decrease before the third dose. However, post the third dose, specific T cell responses surged and remained stable up to the 12-month period. Our findings indicate that the BNT162b2 vaccine induces potent and enduring humoral and cellular responses, which are notably enhanced by the third dose and remain persistant without a significant decline a year after the booster. Further research is essential to understand the potential need for subsequent boosters.

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The associations between longitudinal dynamics and the breadth of SARS-CoV-2 neutralizing antibody (nAb) response with various Long COVID phenotypes before vaccination are not known. The capacity of antibodies to cross-neutralize a variety of viral variants may be associated with ongoing pathology and persistent symptoms. We measured longitudinal neutralizing and cross-neutralizing antibody responses to pre- and post-SARS-CoV-2 Omicron variants in participants infected early in the COVID-19 pandemic, before widespread rollout of SARS-CoV-2 vaccines. Cross-sectional regression models adjusted for clinical covariates and longitudinal mixed-effects models were used to determine the impact of the breadth and rate of decay of neutralizing responses on the development of Long COVID symptoms, as well as Long COVID phenotypes. We identified several novel relationships between SARS-CoV-2 antibody neutralization and the presence of Long COVID symptoms. Specifically, we show that, although nAb responses to the original, infecting strain of SARS-CoV-2 were not associated with Long COVID in cross-sectional analyses, cross-neutralization ID50 levels to the Omicron BA.5 variant approximately 4 months following acute infection was independently and significantly associated with greater odds of Long COVID and with persistent gastrointestinal and neurological symptoms. Longitudinal modeling demonstrated significant associations in the overall levels and rates of decay of neutralization capacity with Long COVID phenotypes. A higher proportion of participants had antibodies capable of neutralizing Omicron BA.5 compared with BA.1 or XBB.1.5 variants. Our findings suggest that relationships between various immune responses and Long COVID are likely complex but may involve the breadth of antibody neutralization responses.

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CONTEXT: In people with spinal cord injury (SCI), infections are a leading cause of death, and there is a high prevalence of diabetes mellitus, obesity, and hypertension, which are all comorbidities associated with worse outcomes after COVID-19 infection. OBJECTIVE: To characterize self-reported health impacts of COVID-19 on people with SCI related to exposure to virus, diagnosis, symptoms, complications of infection, and vaccination. METHODS: The Spinal Cord Injury COVID-19 Pandemic Experience Survey (SCI-CPES) study was administered to ask people with SCI about their health and other experiences during the COVID-19 pandemic. RESULTS: 223 community-living people with SCI (male = 71%; age = 52±15 years [mean±SD]; paraplegia = 55%) completed the SCI-CPES. Comorbidities first identified in the general population as associated with poor outcomes after COVID-19 infection were commonly reported in this SCI sample: hypertension (30%) and diabetes (13%). 23.5% of respondents reported a known infection exposure from someone who visited (13.5%) or lived in their home (10%). During the study, which included a timeframe when testing was either unavailable or scarce, 61% of respondents were tested for COVID-19; 14% tested or were presumed positive. Fever, fatigue, and chills were the most common symptoms reported. Of the 152 respondents surveyed after COVID-19 vaccines became available, 82% reported being vaccinated. Race and age were significantly associated with positive vaccination status: most (78%) individuals who were vaccinated identified as Non-Hispanic White and were older than those who reported being unvaccinated (57±14 vs. 43±13 years, mean±SD). CONCLUSIONS: Self-reported COVID-19 symptoms were relatively uncommon and not severe in this sample of people with SCI. Potential confounders and limitations include responder, recruitment and self-reporting biases and changing pandemic conditions. Future studies on this topic should query social distancing and other behavioral strategies. Large retrospective chart review studies may provide additional data on incidence and prevalence of COVID-19 infections, symptoms, and severities in the SCI population.

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Within the context of the standard SIR model of pandemics, we show that the asymmetry in the peak in recorded daily cases during a pandemic can be used to infer the pandemic R-parameter. Using only daily data for symptomatic, confirmed cases, we derive a universal scaling curve that yields: (i) reff, the pandemic R-parameter; (ii) Leff, the effective latency, the average number of days an infected individual is able to infect others and (iii) α, the probability of infection per contact between infected and susceptible individuals. We validate our method using an example and then apply it to estimate these parameters for the first phase of the SARS-Cov-2/Covid-19 pandemic for several countries where there was a well separated peak in identified infected daily cases. The extension of the SIR model developed in this paper differentiates itself from earlier studies in that it provides a simple method to make an a-posteriori estimate of several useful epidemiological parameters, using only data on confirmed, identified cases. Our results are general and can be applied to any pandemic.

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Objetivos: detección y seguimiento de sospechas de reacciones adversas (RA) en farmacias comunitarias tras la segunda dosis de vacunas frente a la COVID-19. Comparación entre dosis.Material y métodos: diseño: estudio observacional prospectivo.Sujetos: vacunados frente a la COVID-19, mayores de edad, que consintieron participar.Variables: número y porcentaje de participantes con RA. Su número, tipo y frecuencia. Repercusión en su vida diaria. Relaciones entre variables.Aprobado por CEIm-G.Resultados: 693 participantes con la 2ª dosis, 63,6 % mujeres. Edad media 56,8 años. 312 (45,0 %) vacunados, 49,4 % de mujeres y 37,3 % de hombres (p<0,0001), refirieron al menos una RA: 43,9 % con Comirnaty®, 37,7 % con Vaxzevria®, 63,0 % con Spikevax®.Se registraron 972 RA, 75,2 % en mujeres y 24,8 % en hombres (p<0,0001). Media 1,4/vacunado (máximo 11). Las más prevalentes: dolor en punto de inyección 197 (28,4 %), cansancio/fatiga 141 (20,3 %), mialgia 112 (16,2 %), cefalea 95 (13,7 %), fiebre 84 (12,1 %).51 encuestados con RA necesitaron ayuda profesional: 10 del médico, 6 en urgencias, 3 en hospital (1 derivado), 33 en la farmacia. A 70 (15,1 %) les impidió su actividad diaria. Se comunicaron RA de 201 vacunados.Los vacunados con RA y su número fueron menos tras la administración de la 2ª dosis (p<0,05).Relación inversa (p<0,05) entre “edad” y “número de vacunados con RA”, “necesidad de atención profesional” e “impidió la actividad diaria”.Conclusiones: el número de vacunados con RA y su número fue alto también con la segunda dosis, aunque menor que tras la primera. Mujer y menor edad son predictores de riesgo de sufrir RA tras la vacunación frente a COVID-19.(AU)

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OBJECTIVES: To compare the clinical and morphological characteristics of the "mother-placenta-fetus" system in high risk pregnant women of three groups: no SARS-CoV-2 infection, mild SARS-CoV-2 infection, and severe SARS-CoV-2 infection. METHODS: A case-control study was performed for all deliveries, at 28 weeks' gestation or greater, who had standard indications for placental pathologic examination. Three groups were formed: (1) control group (no SARS-CoV-2 infection), (2) mild SARS-CoV-2 infection, (3) severe SARS-CoV-2 infection. High-risk pregnancies were registered in all cases in the study groups. The examination of the placenta and the selection of fragments of placental tissue were carried out in accordance with the consensus recommendations of the Amsterdam Placental Workshop Group. The sections were subjected to standard processing and stained with hematoxylin and eosin according to the standard protocol. All cases were reviewed by two pathologists, which did not know any information on pregnancy outcome and clinical data. Statistical analysis was performed using SPSS, p<0.05 was considered statistically significant. RESULTS: Women with severe SARS-CoV-2 infection had an increased rate of multimorbidity including diabetes, chronic hypertension and obesity (p<0.01) compared with the other groups. Placentas at severe COVID-19 course were damaged by both chronic and acute injuries, in comparison to the mild and control groups (p<0.001). Also an important finding in severe COVID-19 was diffuse necrosis of the villous trophoblast - homogenization, diffuse circular eosinophilic masses surrounding the chorionic villi. CONCLUSIONS: Women with multimorbidity are an "at-risk" subgroup for severe SARS-CoV-2 infection and greater likelihood of both placental damage and perinatal hypoxic-ischemic events. These results suggest that patient education, SARS-CoV-2 disease monitoring and preventive measures would be of benefit to this group.

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Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) entered Brazil before travel restrictions and border closures were imposed. This study reports the characteristics of suspected and confirmed coronavirus disease 2019 (COVID-19) cases among symptomatic international travelers in Brazil and their contacts. Methods: The REDCap platform developed by the Brazilian Ministry of Health was analyzed to identify and investigate suspected cases of COVID-19 recorded during the period January 1 to March 20, 2020. The impact of Brazil's targeted approach to suspected cases from specific countries on epidemiological surveillance efforts during the early stages of the COVID-19 pandemic were analyzed. Results: Based on molecular RT-PCR tests, there were 217 (4.2%) confirmed, 1030 (20.1%) unconfirmed, 722 (14.1%) suspected, and 3157 (61.6%) non-investigated cases among travelers returning from countries included on the alert list for surveillance, as defined by the Ministry of Health. Among the 3372 travelers who went to countries not included on the alert list, there were 66 (2.0%) confirmed, 845 (25.3%) unconfirmed, 521 (15.6%) suspected, and 1914 (57.2%) non-investigated cases. A comparison of the characteristics of confirmed cases returning from alert and non-alert countries did not reveal a statistically significant difference in symptoms. Almost half of the hospitalized travelers with known travel dates and hospitalization status (53.6%) were inbound from countries not included on the alert list, and RT-PCR tests were reported for only 30.5%. Conclusions: Policies adopted at entry points to contain the introduction of SARS-CoV-2 in Brazil were not ideal. An analysis of the early response shows that surveillance of travelers, including testing strategies, data standards, and reporting systems, was insufficient.

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BACKGROUND: COVID-19 is a global pandemic. Currently, the predominant strain is SARS-CoV-2 Omicron subvariant BA.2 in many countries. Understanding its infection characteristics can facilitate clinical management. OBJECTIVES: This study aimed to characterize the clinical, laboratory, and high-resolution computed tomography (HRCT) findings in patients with mild or moderate infection from SARS-CoV-2 Omicron subvariant BA.2. METHODS: We performed a retrospective study on patients infected with SARS-CoV-2 Omicron subvariant BA.2 between April 4th and April 17th, 2022. The clinical characteristics, laboratory features, and HRCT images were reviewed. RESULTS: A total of 805 patients were included (411 males and 394 females, median age 33 years old). The infection was mild, moderate, severe, and asymptomatic in 490 (60.9%), 37 (4.6%), 0 (0.0%), and 278 (34.5%) patients, respectively. Notably, 186 (23.1%), 96 (11.9%), 265 (32.9%), 11 (3.4%), 7 (0.9%), and 398 (49.4%) patients had fever, cough, throat discomfort, stuffy or runny nose, fatigue, and no complaint, respectively. Furthermore, 162 (20.1%), 332 (41.2%), and 289 (35.9%) patients had decreased white blood cell counts, reduced lymphocytes, and elevated C-reactive protein levels, respectively. HRCT revealed pneumonia in 53 (6.6%) patients. The majority of the lung involvements were ground-glass opacity (50, 94.3%) mostly in the subpleural area. The grade of lung injury was mainly mild (90.6%). Short-term follow-ups showed that most patients with pneumonia recovered. CONCLUSION: Most patients with mild or moderate infection from SARS-CoV-2 Omicron subvariant BA.2 were adults, with fever and upper respiratory symptoms as the main clinical presentations. Lower respiratory infection was mild, with ground-glass opacity in the subpleural area as the main finding.