Vaccines prevented up to 140,000 COVID-19 deaths in U.S.

Three highly effective COVID-19 vaccines are available in the U.S. These vaccines have been shown to slow the spread of the virus and reduce COVID-19 deaths. About half of the population has been fully vaccinated as of August 2021. But vaccination rates have varied across the country, with some states proceeding much faster than others.

U.S. to Advise Boosters for Most Americans 8 Months After Vaccination

The Biden administration has decided that most Americans should get a coronavirus booster vaccination eight months after they received their second shot, and could begin offering third shots as early as the third week of September, according to administration officials familiar with the discussions.

How gut microbes could drive brain disorders

Scientists are starting to work out how the gut microbiome can affect brain health. That might lead to better and easier treatments for brain diseases.

F.D.A. to Authorize Third Vaccine Dose for People With Weak Immune Systems

The decision to expand the emergency use of both the Pfizer-BioNTech and Moderna vaccines is meant to help transplant recipients and others whose immune systems are similarly compromised.

Most children recover quickly from Covid, but some have lingering symptoms, a study says.

Most children with Covid-19 recover within a week, but a small percentage experience long-term symptoms, according to a new study of more than 1,700 British children. The researchers found that 4.4 percent of children had symptoms that last four weeks or longer, while 1.8 percent have symptoms that last for eight weeks or longer.