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INTRODUCTION: Coronavirus disease 2019 (COVID-19) vaccine hesitancy is a major problem. This study aimed to determine the factors associated with COVID-19 vaccine acceptance. METHODOLOGY: A cross-sectional survey-based study was conducted on a sample of the Egyptian population using an online survey distributed through social media platforms, including Facebook, WhatsApp, and LinkedIn. The questionnaire was composed of five parts: part I describing the research questionnaire and its aim, part II assessing the demographic data, part III assessing knowledge and attitude towards COVID-19 infection, and part IV and V evaluating knowledge regarding COVID-19 vaccines, factors affecting vaccine acceptance and participants' attitude toward vaccination. Regression models were used to assess factors associated with vaccine acceptability. RESULTS: A total of 24376 responses were included in the statistical analysis. Females represented more than two-thirds of the study sample (70.5%,) and 18-24 years was the most commonly reported age group. Around one-third of the sample were healthcare professionals (HCPs). Only 14.3% of the participants received or registered to receive the vaccine, while 47% refused to be vaccinated. Regression analysis revealed that male gender, secondary education, older age, married or divorced status, presence of comorbidities, and higher level of knowledge regarding the vaccine were significantly associated with high vaccine acceptance. The most important vaccine attributes influencing vaccine selection in the current work were efficacy and safety. CONCLUSIONS: Vaccine hesitancy is currently a major challenge. Governments should design educational campaigns that provide trusted data related to vaccine efficacy and safety to encourage vaccination and enhance awareness.
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Vacunas contra la COVID-19 , COVID-19 , Femenino , Humanos , Masculino , Estudios Transversales , Egipto/epidemiología , COVID-19/prevención & control , VacunaciónRESUMEN
INTRODUCTION: Vitamin D binding protein (VDBP) is a potential modulator of immune response and is associated with clinical progression of many diseases. Our aim was to assess influence of baseline 25-hydroxyvitamin D levels and VDBP single nucleotide polymorphisms (SNPs), rs4588 (C > A) and rs7041 (G > T), on baseline clinical parameters and response to interferon based therapy in chronic hepatitis C patients in Egypt. METHODOLOGY: Genotyping was performed by RFLP (Restriction Fragment Length Polymorphism) in 112 treatment naïve hepatitis C patients and 50 healthy controls. Vitamin D levels were assessed by ELISA. HCV RNA quantification was performed by PCR to assess therapy outcome. RESULTS: Patients with VDBP WT+ diplotype (3 or 4 VDBP major alleles) had higher viral response rates at weeks 12, 48, and 72 (p = 0.046, 0.034 and 0.029, respectively) and lower base line viral load (p = 0.016). Multivariate logistic regression identified VDBP WT+ diplotype as an independent predictor of sustained viral response (SVR; p = 0.014, RR = 4.716, 95% CI = 1.371 - 16.609). Interestingly, WT- diplotype (less than 3 VDBP major alleles) was associated with significant liver fibrosis (p = 0.045). CONCLUSIONS: VDBP WT+ diplotype is associated with lower baseline viral load and better therapy outcome in HCV treatment naïve patients. The rs4588 genotype is associated with SVR in the Egyptian population.
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The oral bioavailability of griseofulvin (GF) formulated as a fast disintegrating lyophilized dry emulsion (LDE) tablet was studied and compared to the commercially available immediate release (IR) tablet, as a reference, in both the fasted and fed states in nine healthy volunteers after a single oral dose (125 mg) in a crossover design. Furthermore the LDE tablets were ingested with and without water under both the fasted and fed states. In the fasted state, the rate of absorption was found to be significantly faster from LDE tablets, in the presence and absence of water, as shown by a higher C(max) (more than two times higher, p=0.0001) and a shorter t(max) (by more than 3h, p=0.0001) compared to IR tablets. The extent of absorption, expressed as AUC, from LDE tablets in the presence and absence of water was 65% and 77% larger and statistically significantly different relative to the mean AUC from IR tablets (p=0.006). In the fed state, C(max) from LDE tablets ingested with and without water was found to be about 30% and 50% higher, respectively, than the immediate release tablets. A shorter t(max) was also shown whether LDE tablets were ingested with or without water in the fed state as compared to immediate release tablets. The mean AUC from LDE tablets under fed conditions in the presence of water was about 21% larger and was not statistically significantly different from AUC from immediate release tablets (p=0.517). When ingested without water, AUC from LDE tablets was about 43% larger and statistically significantly different relative to AUC from IR tablets (p=0.033). The mean AUC from the LDE tablet ingested with water under fed conditions relative to AUC from LDE tablet ingested without water was not statistically significantly different (p=0.454). Results show that the food effect of the high fat meal is very pronounced in case of the immediate release tablets, Fulvin, than in case of LDE tablets whether given with or without water.