Pfizer now says it is developing booster shots amid fears its COVID-19 vaccine is less effective against the highly-infectious variants from Brazil and South Africa Pfizer CEO Albert Bourla said Tuesday...

(HealthDay)—As the debate over face masks continues, few may realize how the coverings make it hard for the 48 million Americans with hearing loss to communicate with others. Masks can muffle sound,...

As the country moves into lockdown mode in response to the COVID-19 pandemic, we are increasingly faced with serious ethical questions about what ordinary people should be obliged to do for others. These...

It’s an ordinarily overcast day, but the artificial lights of the lab radiate a crude brightness for Professor Stephen Taylor and his team. The room is bustling and busy. Scientific equipment and...