COVID still much deadlier than the flu
People in the U.S. are still 60 percent more likely to die of COVID than from the flu, says new research.
Gates pledges $1.2 billion to speed end of crippling poliovirus
Bill Gates says polio came tantalizingly close to being eradicated in the spring, before new outbreaks were seeded in Africa and a man was paralyzed...
COVID incubation gets shorter with each new variant, study shows
The interval between exposure to the coronavirus and the development of COVID symptoms appears to be narrowing. Here's why that is good news.
Stress hormone levels may predict who gets long COVID, new study finds
Levels of cortisol in the blood of people with long COVID were roughly half those found in healthy, uninfected people or individuals who fully recovered.
What experts know about ‘long COVID’ and who gets it
Colloquially known as long-haulers, these millions of suffering people reflect the pandemic's lasting damage to society and the economy.
Coronavirus persisting in feces offers clues to long COVID cause
COVID patients can harbor the coronavirus in their feces for months after infection, researchers found, stoking concern that its persistence can aggravate cause long COVID...
The best time to get a COVID booster shot: What the science tells us
Booster shots are rolling out across much of the world to spur protection against COVID-19, prompting questions about when exactly they should be given.