science

Prehistoric human remains discovered in U.S. National Park

BioNTech CEO confident vaccine will work on UK variant

Scientists urge concern, not alarm over new COVID strains

US experts debate: Who should be next in line for vaccine?

FDA plans to OK 2nd COVID-19 vaccine after panel endorsement

Health officials track safety as COVID-19 vaccines roll out

Vaccinations ramp up as 2nd COVID-19 shot nears

'Healing is coming': Health workers start getting vaccine

US allows emergency COVID-19 vaccine in bid to end pandemic

Pfizer COVID-19 vaccine faces last hurdle before US decision