Standard dosing intervals for BNT162b2 and mRNA-1273 SARS-CoV-2 vaccines are 21 and 28 days, respectively. 1 Data suggest improved effectiveness of ChAdOx1 adenoviral 2 and other nonreplicating vaccines 3 with increased dosing intervals, but little data exist for mRNA vaccines. This study investigated the immunogenicity of extended mRNA vaccine dosing intervals.
Objectives: To systematically analyze and summarize the literature on intimate partner violence (IPV) against HIV-positive women in sub-Saharan Africa (SSA) and to identify their risk factors for IPV. Method: A comprehensive review of the literature using the Preferred Reporting Item for Systematic Review and Meta-Analysis (PRISMA) and Meta-Analyses of Observational Studies in Epidemiology (MOOSE) yielded 1,879 articles (PubMed = 1,251, Embase = 491, Web of Science = 132, and identified additional records = 5). Twenty were selected for quantitative and qualitative assessment and synthesis. We employed a random effects model with generic inverse variance method and estimated the odds ratios. Findings: Results indicated a high prevalence of physical, sexual, and emotional violence against women living with HIV/AIDS in SSA. Educational background, alcohol use, marital status, previous experiences with IPV, and employment status were identified as significant risk factors. We also assessed the methodological quality of the articles by examining publication bias and some heterogeneity statistics. Conclusion: There is limited research on IPV against HIV-positive women in SSA. However, the few existing studies agree on the importance of targeting HIV-positive women with specific interventions given their vulnerability to IPV and to address factors exacerbating these risks and vulnerabilities.
The optimal dosing interval for severe acute respiratory syndrome coronavirus 2 vaccines remains controversial. In this prospective study, we compared serology results of paramedics vaccinated with mRNA vaccines at the recommended short (17–28 days) vs long (42–49 days) interval. We found that a long dosing interval resulted in higher spike, receptor binding domain, and spike N terminal domain antibody concentrations.
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