Health

Marijuana during pregnancy is linked to poor birth outcomes and developmental delays in children, a leading medical society advised.

Committee members delayed indefinitely a vote on a hepatitis B vaccine for newborns because they did not feel ready to make a decision.

Captive animals sometimes need a transfusion, but the typical approach to blood banking isn’t practical for zoos and aquariums. One veterinarian is testing a solution.

Secretary of State Marco Rubio said the United States would negotiate agreements to deliver aid in new ways and would focus on the Western Hemisphere and Asia Pacific.

Robert F. Kennedy Jr. is set to announce that the U.S. is firing a Miami-based organ donation coordinator, effectively closing it down — a warning to other transplant groups.

Northeastern governors, like their peers in the West, want to shore up public health and issue approval for vaccines.

The advisory committee, which will meet on Thursday and Friday, is expected to recommend limiting use of some vaccines, including the hepatitis B shot for newborns.

Susan Monarez, the head of the public health agency for barely a month, repeatedly told senators that Health Secretary Robert F. Kennedy Jr. was ignoring science in undercutting vaccines.