Breakthrough Covid Cases: Uncommon and Often Mild, but Not Always

Vaccination remains the best defense, health experts say. But some infections occur regardless, and can come as a traumatic surprise. News & more most reading Infos >> Ukraine RussiaUkraine Russia Infos

News & more most reading Infos >> Ukraine Russia

How The US is Getting a Crash Course in Scientific Uncertainty Due to the Pandemic

As the pandemic takes an unexpected direction, Americans again must reckon with twists in scientific understanding of the virus. News & more most reading Infos >> Ukraine RussiaUkraine Russia Infos

News & more most reading Infos >> Ukraine Russia

The U.S. Is Getting a Crash Course in Scientific Uncertainty

As the pandemic takes an unexpected direction, Americans again must reckon with twists in scientific understanding of the virus. News & more most reading Infos >> Ukraine RussiaUkraine Russia Infos

News & more most reading Infos >> Ukraine Russia

Vaccine Effectiveness Against Infection May Wane, C.D.C. Studies Find

Federal health officials said the new data justified a campaign of booster shots. But some scientists disagreed, saying not every American needs another dose. News & more most reading Infos >> Ukraine RussiaUkraine Russia Infos

News & more most reading Infos >> Ukraine Russia

Early Data Hints at a Rise in Breakthrough Infections

With the arrival of the contagious Delta variant, Covid hospitalizations and deaths among vaccinated Americans also may have increased, according to preliminary figures. News & more most reading Infos >> Ukraine RussiaUkraine Russia Infos

News & more most reading Infos >> Ukraine Russia