Flu Shots Are Linked to a Drop in COVID-19 Infections, And Scientists Aren't Sure Why

AstraZeneca accused of cherry-picking vaccine study data. U.S. health officials say results from a trial of AstraZeneca’s COVID-19 vaccine may have included “outdated information” and that could mean the company provided an incomplete view of efficacy data

As Covid-19 Derails TB Progress, Advocates Demand Renewed Commitment To End TB

COVID-19 Vaccine: What Side Effects — or No Side Effects — Mean