After a 90-day review, U.S investigators did not turn up any clear answer on whether the coronavirus hopped from an animal to a human — or somehow escaped from a lab.
Some kids are getting sick or passing the coronavirus to vaccinated family and friends. It's all unnerving to many parents. "It felt like a terrible head cold," one dad says. "My brain was foggy."
After vaccination, antibody levels can help predict how much protection a COVID-19 shot offers, scientists are learning. The finding could speed up the development of future vaccines.
A COVID-19 vaccine for children younger than 12 is not yet available, but research is well underway and the first shot for some kids in this age group is expected in the fall, doctors say.
Some Republicans are blaming the latest surge in COVID-19 cases on migrants crossing the southern border. But many doctors disagree, saying the politicians are just looking to divert attention.
Some public health experts are also parents of little kids, and have to strategize to keep those too young to be vaccinated safe from getting or spreading the delta variant. Here are their tips.
Some people have reported getting a lighter or heavier period after getting a COVID-19 vaccine. Cause for concern? Doctors say no. Could it be a temporary side effect? That's harder to determine.
Workers in health care facilities will be required to provide proof that they have been fully vaccinated against COVID-19, with exemptions only for religious or valid medical reasons.