Third, to investigate how the vaccine type affects the chances of developing a breakthrough infection after the second dose, we undertook a negative-test design case–control study in the full Virus Watch cohort (e.g. not just those participants undertaking monthly antibody testing). Cases were ...
This systematic reviewe and meta-analysis evaluates household secondary attack rates of SARS-CoV-2 by variant and vaccination status.
Monthly measles incidence (y-axis) between 2011 and 201965 is shown in gray, and the first 6 months of 2020 (months on the x-axis) shown in red for countries for which data is available in SSA (n = 34 of 48). China and Germany (which have been relatively successful in controlling ...
This systematic review and meta-analysis examines evidence for household transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2),
In Japan, the number of COVID-19 cases and deaths in 2020 and 2021 was relatively low, but the COVID-19 outbreak peaked in August 2022 (the number of monthly cases: 6.2 million) [1]. By October 2022 (the end of a nationwide all-case survey), the cumulative number of COVID-19 cas...
The logarithmic transformation was applied to all indicators to obtain regression coefficients that are interpreted as monthly percent change (MPC)21; also, this transformation contributes to mitigating heteroskedasticity. The MPC was reported along with its 95% confidence interval (CI). ...
Participants were followed bi-monthly for symptoms of COVID-like illness. The qualifying symptoms of COVID-like illness included fever (≥38 °C) or cough or sore throat or shortness of breath or anosmia/ageusia or malaise or fatigue or vomiting or diarrhoea. The trial was approved by the ...
Monthly confirmed COVID-19 cases (bars) for the municipality of Campo Grande (above), Brazil, and for schools in the study (below). The dashed line shows the date on which all the schools had in-person classes. Orange shading shows the testing periods ...
Cullen W, Gulati G, Kelly BD (2020) Mental health in the COVID-19 pandemic. QJM : Monthly Journal of the Association of Physicians 113(5):311–312. CASGoogle Scholar Dada AC, Gyawali P (2021) Quantitative microbial risk assessment (QMRA) of occupational exposure to SARS-CoV-2 in wastewa...
This systematic review and meta-analysis evaluated the percentage of asymptomatic COVID-19 infections among individuals undergoing testing and those with