
CDC Formally Drops Guidance for Universal Hepatitis B Shots at Birth
New guidance from the CDC’s vaccine advisory panel scraps a decades-old universal birth dose recommendation for hepatitis B that helped cut infections by 99 percent in the U.S.

CDC Formally Drops Guidance for Universal Hepatitis B Shots at Birth
New guidance from the CDC’s vaccine advisory panel scraps a decades-old universal birth dose recommendation for hepatitis B that helped cut infections by 99 percent in the U.S.

CDC Vaccine Panel in Disarray over Hepatitis B Vote
Members of the CDC’s Advisory Committee on Immunization Practices seemed confused about a proposed recommendation for the birth dose of the hepatitis B vaccine


Scientists Pinpoint Gene in Sperm That May Be Key to Male Infertility
Without the gene Poc5, male mice produced no viable sperm, pointing to a possible link to infertility

Video: Highlights from a Sickle Cell Disease Event
Scientific American hosted an event at Morehouse School of Medicine to highlight medical advances in treating sickle cell disease and how far we still have to go

WHO Sets GLP-1 Weight-Loss Drug Guidelines
New WHO guidance calls for a worldwide obesity treatment “ecosystem” to ensure that GLP-1 weight-loss drugs are used fairly

First Human Dies of Rare H5N5 Bird Flu Strain. Here’s What You Need to Know
H5N1 bird flu has been circulating in U.S. wildlife since late 2021 but has caused only one human fatality. Now a different type of bird flu has also caused a death

Psychedelics and Immortality Take Center Stage at MAHA Summit
The Make America Healthy Again summit, attended by RFK, Jr., and J. D. Vance, gave a sense of what’s driving U.S. health policy

Is the U.S. in Store for Another Brutal Flu Season?
U.S. flu rates remain low, but experts are keeping an eye on a new strain that’s been linked to unexpectedly early and severe seasons in several other countries

CDC Vaccine Website Promotes Antiscience Claims of Autism Ties
The CDC this week quietly changed its official language to suggest vaccines may cause autism, a claim that scientists say has no basis in evidence

Fluoride in Tap Water Not Linked to Lower Child IQ, Massive Study Finds
Researchers tracked thousands of Americans for decades, finding no links between ingesting recommended levels of fluoride and lower cognitive skills

How Is Botulism Getting into Baby Formula? Here’s How to Keep Kids Safe
In recent weeks, dozens of infants in the U.S. have been infected with botulism in an outbreak linked to ByHeart powdered infant formula

Heart Rate Irregularity Sounds Bad, but Here’s Why You Want a Bit of It
Milliseconds of variability, now detected by fitness watches, can improve well-being