The FDA plans to limit access to certain high-risk groups and also told Pfizer and Moderna to update their warning labels about heart inflammation.

Preliminary data from researchers in China suggest the NB.1.8.1 variant is not better at evading the immune system compared to other strains on the rise, but it does have a greater ability to bind to human cells, suggesting it could be more transmissible.

Historically, almost everyone has been eligible for Covid vaccines; the C.D.C. recommended the most recent vaccine for all Americans over 6 months of age.

Theatre nurse David Collyer wanted to shoot a documentary photography project in the last years of the Welsh hospital he worked in. Then Covid-19 appeared.

Health officials are sounding the alarm over a dangerous new COVID-19 strain as hospitalisation rates in China surge. The Centres for Disease Control and Prevention's (CDC) data shows that patients from nine countries have tested positive for the new strain - China, Japan, Vietnam, South Korea, Taiwan, Thailand, France, the Netherlands and Spain.

A class of drugs known as Janus kinase, or JAK, inhibitors, which work by slowing down the immune system, should be the first-line therapy for patients hospitalized for COVID-19, researchers reported in The Lancet Respiratory Medicine.