RESUMO
Aim: We aimed to evaluate health and nutrition behaviors among the Panamanian population during the confinement period corresponding to the first wave of the COVID-19 pandemic. Methods: We conducted a cross-sectional study using an online survey for data collection with a total of 2475 participants over the age of 18 using an online survey. We also completed 64 face-to-face interviews. After data validation, 1561 surveys were included in the study. Most respondents were women (74.2%) between 18 and 49 years old. Among the respondents, 83.3% had a university education level, and 49.9% reported a monthly family income of fewer than 1000 USD. In addition, more than 50% self-reported as overweight or obese. Results: We identified three dietary patterns: a healthy, a non-healthy, and a mixed dietary pattern. The respondents with healthy and nonhealthy dietary patterns reported better socioeconomic conditions than participants from the mixed dietary pattern. Individuals with mixed dietary patterns had lower incomes, less education, and higher unemployment rates. Regarding emotions, we found that women experienced more negative emotions, such as fear, worry, and anxiety, during the lockdown period. Conclusions: Taken together, these results indicate that the mobility restriction measures imposed during the COVID-19 pandemic could have affected dietary patterns by exacerbating existing inequalities. Directing resources toward promoting healthy nutrition strategies with the most significant positive impacts on public health is a priority, especially in critical situations such as the COVID-19 pandemic.
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HIV-1 BF intersubtype recombinants are frequent in Argentina, Uruguay, and Brazil, where among a high diversity of BF unique recombinant forms (URFs), eight circulating recombinant forms (CRFs) have been characterized. Here, we describe a new one, designated CRF44_BF, identified in HIV-1 samples from Chile. In a previous report, where partial pol sequences of 136 HIV-1 infections of Chilean subjects were analyzed, a phylogenetic cluster of HIV-1 recombinant BF viruses from 10 individuals, with coincident intersubtype recombination points, was detected. One virus of this cluster had been characterized along its near full-length genome. A second one, from an epidemiologically unlinked HIV-1-infected subject, is described here. Both genomes share identical mosaic structures, consisting of a predominantly subtype F1 genome with three fragments of subtype B. Coincident breakpoints and phylogenetic clustering of the newly identified CRF44_BF with CRF12_BF, CRF17_BF, and CRF38_BF support a common origin of different CRF_BFs identified in Argentina, Uruguay, and Chile.
Assuntos
Infecções por HIV/virologia , HIV-1/classificação , HIV-1/isolamento & purificação , Recombinação Genética , Chile , Análise por Conglomerados , Feminino , Genoma Viral , Genótipo , HIV-1/genética , Humanos , Masculino , Dados de Sequência Molecular , Filogenia , Análise de Sequência de DNA , Produtos do Gene pol do Vírus da Imunodeficiência Humana/genéticaRESUMO
This study reports the analysis of human immunodeficiency virus type 1 (HIV-1) protease (PR) and reverse transcriptase (RT) coding sequences from 136 HIV-1-infected subjects from Chile, 66 (49%) of them under antiretroviral (ARV) treatment. The prevalence of mutations conferring high or intermediate resistance levels to ARVs was 77% among treated patients and 2.5% among drug-naïve subjects. The distribution of resistance prevalence in treated patients by drug class was 61% to nucleoside RT inhibitors, 84% to nonnucleoside RT inhibitors, and 46% to PR inhibitors. Phylogenetic analysis revealed that 115 (85%) subjects were infected with subtype B viruses, 1 with a subtype F1 virus, and 20 (15%) carried BF intersubtype recombinants. Most BF recombinants grouped into two clusters, one related to CRF12_BF, while the other could represent a new circulating recombinant form (CRF). In conclusion, this is the first report analysing the prevalence of ARV resistance which includes patients under HAART from Chile. Additionally, phylogenetic analysis of the PR-RT coding sequences reveals the presence of BF intersubtype recombinants.
Assuntos
Fármacos Anti-HIV/farmacologia , Farmacorresistência Viral/genética , Infecções por HIV/virologia , HIV-1/classificação , HIV-1/efeitos dos fármacos , Fármacos Anti-HIV/uso terapêutico , Chile , Evolução Molecular , Feminino , Infecções por HIV/tratamento farmacológico , Protease de HIV/genética , Transcriptase Reversa do HIV/genética , HIV-1/genética , HIV-1/isolamento & purificação , Humanos , Masculino , Epidemiologia Molecular , Dados de Sequência Molecular , Mutação , Filogenia , Recombinação Genética , Análise de Sequência de DNA , Homologia de SequênciaRESUMO
Human immunodeficiency virus type 1 (HIV-1) BF intersubtype recombinant viruses are common in Argentina and Uruguay, where CRF12_BF and related recombinants are frequently found, and, in a lower proportion, in Brazil. Full-length genome sequences have been characterized in several of these recombinant viruses. Here, we analyze six newly derived near full-length genome sequences of BF recombinant viruses, three from Chile, one from Venezuela and two from Spain. Five of them had known epidemiological links to Argentina. Genomes were amplified by PCR from plasma RNA or from peripheral blood mononuclear cells' DNA. Mosaic structures and phylogenetic relationships were analyzed by bootscanning, neighbour-joining phylogenetic trees and by examination of subtype signature nucleotides. One virus from Spain had a mosaic structure fully coincident with CRF12_BF. The others had unique mosaic structures, except the viruses from two Chilean sisters infected vertically from the same mother, who showed identical recombination patterns. Each of the unique recombinants had one to six breakpoints coincident with CRF12_BF and three also had two or three breakpoints coincident with a previously characterized unique recombinant from Argentina (A025) related to CRF12_BF. A phylogenetic tree of concatenated subtype F segments supported the relationship of five recombinants with CRF12_BF. In trees of partial subtype F and B segments, four recombinants clustered with A025. The examination of CRF12_BF signature amino acids and nucleotides supported the common ancestry of all the analyzed viruses. Based on these results, a model of generation of HIV-1 BF recombinants of Argentinean ancestry by successive rounds of recombination along diverse lineages deriving from a common BF recombinant ancestor related to CRF12_BF is proposed.
Assuntos
Genoma Viral , HIV-1/genética , Recombinação Genética , Argentina , Chile , Feminino , Variação Genética , Infecções por HIV/genética , Humanos , Masculino , Filogenia , Análise de Sequência de DNA , Espanha , VenezuelaRESUMO
BACKGROUND: Type I human immunodeficiency virus (HIV) is characterized by a great genetic variability. There are three groups of virus throughout the world: O, N and M. Group M is responsible for AIDS pandemic and is subdivided in 9 genetic subtypes. Most viral strains in South America are subtype B. AIM: To determine the frequency of HIV subtypes in Chilean patients. MATERIAL AND METHODS: Genetic analysis of C2-V3-C3 region of the gene env in HIV strains coming from 77 Chilean subjects infected by different means. DNA heteroduplex mobility assay was used to determine HIV subtypes. RESULTS: Sixty eight cases were infected with subtype B (88.3%) and nine cases were infected with subtype F (11.7%). CONCLUSIONS: Subtype B is the predominant HIV in Chile, but subtype F is also present.
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Infecções por HIV/virologia , HIV-1/classificação , Sorodiagnóstico da AIDS , Adolescente , Criança , Pré-Escolar , Chile/epidemiologia , DNA Viral/análise , Eletroforese em Gel de Poliacrilamida , Feminino , Proteína gp120 do Envelope de HIV/genética , HIV-1/genética , Humanos , Masculino , Reação em Cadeia da PolimeraseRESUMO
Backgrund: Chlamydia trachomatis is one of the most common identifiable infectious agents in neonatal conjunctivitis. It also causes pneumonitis, that is preceded by conjunctivitis in one third of cases. Aim: To asses the prevalence of Chlamydia trachomatis in newborns with conjunctivitis. Patients and methods: In 162 newborns, coming from 14 Primary Health Centers from Santiago de Chile, C. trachomatis was detected by indirect fluorescence and two polymerase chain reaction (PCR 1 and 2), wich amplified different sequences from the common endogenous plasmid. Those patients with positive indirect fluorescence and PCR 2 were definedas infected: Results: The prevalence of C. trachomatis was 8 percent, and the distribution of the positive cases was similar in the different Health Centers. Other isolates were: S. aureus (9.8 percent), S. pneumoniae (8 percent), S. viridans (6.2 percent) y H. influenzae (5.5 percent). Conclusions: The prevalence of C. trachomatis in neonatal conjunctivitis in Chile is similar to that of developed countries. Therefore, C. trachomatis should be considered in the election of antimicrobials for the treatment of neonatal conjunctivitis, to avoid ocular and respiratory complications