Health care

Merck Scraps Covid-19 Vaccine Candidates

California authorities probe death of person receiving Covid vaccine-19 hours earlier

New variants of the coronavirus complicate the battle against the pandemic

China surpasses the US as the world’s leading foreign direct investment destination

Germany buys covert treatment used by former President Trump

Covid-19 vaccines in India start off in a bumpy way

Israeli vaccination prevents infection and hospitalization

Taiwan calls for quarantine of up to 5,000 people in a virus outbreak

Vaccines may not work well in variants, Hancock says

Fauci says Johnson & Johnson’s COVID-19 vaccine can get approval in two weeks