Rob Stein

The Third International Summit on Genome Editing concluded Monday with ethicists warning scientists to slow down efforts to use gene-editing to enhance the health of embryos.

Victoria Gray's life has been transformed by her treatment for sickle cell disease with the gene-editing technique called CRISPR. She's in London telling her story at a scientific summit.

The last time this summit convened in 2018, the world was shocked to hear a scientist had created the first gene-edited babies. He was condemned, but gene-editing has continued, with some success.

After three years, the Johns Hopkins Coronavirus Resource Center is ceasing operations. Its data dashboards and maps became go-to sources for information from the early days of the pandemic.

The main reason the surge is ebbing now, pandemic experts suspect, is the significant immunity many people in the U.S. have acquired from prior infections and COVID vaccinations many received.

The Food and Drug Administration proposes easing many restrictions on gay and bisexual men donating blood.

Long criticized as discriminatory, the policy has prevented many gay and bisexual men from donating blood. The Food and Drug Administration revealed a draft of its new approach on Friday.

FDA advisers debate the agency's controversial proposal to start handling the COVID vaccines like the flu shots — updating them annually to target the most likely strain to be dominant each winter.

The new approach would simplify vaccination guidance so that, every fall, people would get a new shot, updated to try to match whatever variant is dominant.

And what about a cold or RSV? With all the illness spreading, it's virus soup out there these days. Some people feel so sick they're wondering if they're fighting more than one germ at once.

It would make more sense to screen a plane's wastewater to look for new variants than to screen individual passenger volunteers, some researchers say. Others say any information is helpful.

The CDC has expanded screening of incoming international air travelers to try to more quickly spot any new variants that might emerge from China's massive COVID outbreak.

The Respiratory Syncytial Virus - or RSV - surge has peaked, and the flu appears to be receding. But COVID rates are up again, driven by holiday gatherings and an even more transmissible variant.

RSV and the flu appear to be receding in the U.S., but COVID is on the rise, new data suggests, driven by holiday gatherings and an even more transmissible omicron subvariant that has become dominant.

The U.S. has started requiring all travelers from China to test negative for COVID, even though many experts think it won't help much.

The National Center for Health Statistics estimates that cases of long-COVID have caused more the 3,000 deaths in the U.S., but this is undoubtedly an undercount.

Using CRISPR to modify certain immune cells could make cancer-fighting immunotherapy more potent for a broader set of patients. Two people who went through the treatment share their stories.

The Centers for Disease Control and Prevention and the American Medical Association warn that the surge in RSV, flu and COVID is threatening the upcoming holiday season.

The Centers for Disease Control and Prevention updated the status of the "tripledemic" in the wake of Thanksgiving.

The Food and Drug Administration is likely to propose easing restrictions on blood donations by gay and bisexual men.