Global leaders are racing to contain a potentially more dangerous new coronavirus strain that was first discovered in South Africa. On Friday, the World Health Organization officially declared the ...

Delta variant fuels wave of infections in U.S. As concerns over the new Omicron variant grow, public health experts say the Delta variant is still causing a majority of infections in the U.S. CBS News ...

U.S. to lift land border restrictions for vaccinated travelers For the first time since March 2020, the U.S. will allow vaccinated travelers to enter the country by land for non-essential activities, ...

Coronavirus cases are skyrocketing in at least half of the U.S. The Delta variant is fueling the surge, but the CDC says vaccines are still effective against it. Dr. Julie Morita, executive vice ...

Pfizer's COVID-19 vaccine has become the first in the U.S. to receive full approval from the FDA for people ages 16 and up. The vaccine still remains under emergency use authorization for children 12 ...

A Centers for Disease Control and Prevention advisory committee voted to recommend Pfizer's COVID-19 vaccine for use in children as young as 12. Dr. Sunil Sood, the chair of pediatrics at South Shore ...