CDC: Pfizer vaccine prevents 93% of hospitalization in teens
Centers for Disease Control study finds Pfizer vaccine highly effective among children ages 12-18.
Centers for Disease Control study finds Pfizer vaccine highly effective among children ages 12-18.
Centers for Disease Control places Israel on 'red list' of countries with highest coronavirus infection rates, urges Americans not to visit.
Man traveling from Liberia to Dallas falls sick with lethal virus, becomes first case outside of Africa in current outbreak.