内容摘要：At least seven lawsuits are challenging his use of that power. And on Wednesday the

At least seven lawsuits are challenging his use of that power. And on Wednesday the

“Once someone comes with a breakthrough like this, it will take no time” for other teams to apply the lessons and move forward, he said. “There are barriers, but I predict that they are going to be crossed in the next five to 10 years. Then the whole field will move as a block because we’re pretty much ready.”The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

WASHINGTON (AP) — A man who battled childhood cancer has received the first known, in a study aimed at restoring the fertility of cancer’s youngest survivors.Jaiwen Hsu was 11 when a leg injury turned out to be bone cancer. Doctors thought

could save him but likely leave him infertile. His parents learned researchers at the University of Pittsburgh Medical Center were freezing testicular cells ofin hopes of preserving their future fertility — and signed him up.

Hsu, now 26, is the first to return as an adult and test if reimplanting those cells might work.

“The science behind it is so incredibly new that right now it’s kind of a waiting game,” said Hsu, of Vienna, Virginia. “It’s kind of eagerly crossing our fingers and hoping for the best.”, who co-authored the journal paper and joined the FDA webcast.

Prasad and Makary criticized the U.S.’s “one-size-fits-all,” contrasting it with some European countries that recommend boosters based on age, risk and other factors.Prasad said the FDA will ask all manufacturers to do new clinical trials in healthy people ages 50 to 64, randomly assigning them to get a vaccine or a placebo and tracking outcomes with special attention to severe disease, hospitalization or death. Companies might need to repeat that requirement for future vaccine approvals if there’s a large virus mutation rather than the past year’s incremental evolution. Companies are also free to test their vaccines for approval in younger adults and children, Prasad said, adding “this is a free country.”

Since becoming the nation’s top health official in February, Kennedy has filled the FDA and other health agencies with outspoken critics of the government’s handling of COVID shots, including Makary and Prasad. Under federal procedures, the FDA releases new guidance in draft form and allows the public to comment before finalizing its plans. The publication of Tuesday’s policy in a medical journal is highly unusual and could run afoul of federal procedures, according to FDA experts.Health experts say there are legitimate questions about how much everyone still benefits from yearly COVID vaccination or whether they should be recommended only for people at increased risk.