Risk factors affecting COVID-19 vaccine effectiveness identified from 290 cross-country observational studies until February 2022: a meta-analysis and meta-regression
Hasan T, Beardsley J, Marais BJ, Nguyen TA, Fox GJ. The implementation of mass-vaccination against SARS-CoV-2: a systematic review of...

COVID-19 and myocarditis in competitive athletes | Medical News Bulletin
Quick takes: Climate change impact, dengue in Bangladesh, hypervirulent recombinant coronavirus in cats
After-action report finds that hepatitis A outbreak helped hone COVID-19 response – The San Diego Union-Tribune
Ohio could drop below lowest COVID-19 cases in a year – NBC4 WCMH-TV
The Search for Long Covid Treatments Takes a Promising Turn – WIRED