‘But I never smoked’: A growing share of lung cancer cases is turning up in an unexpected population
J&J one-dose Covid vaccine is 66% effective, a weapon but not a knockout punch
A side-by-side comparison of the Pfizer/BioNTech and Moderna vaccines
South Carolina identifies the first U.S. cases of coronavirus variant first seen in South Africa
Novavax says its Covid-19 vaccine is 90% effective, but far less so against one variant
