Trials are beginning on several drugs that have shown promise in preliminary studies against the virus that is causing the current outbreak.

Health Secretary Robert F. Kennedy Jr. has toned down his public criticism of vaccines, under orders from the White House. But inside his department, a sprawling research effort is a top priority.

But it has been hard to attract interest in medical interventions for viruses that have not been considered a top public health priority, scientists say.

Dr. Erica Schwartz is seen as a highly qualified traditional choice and tapping her is the strongest signal yet that the administration is veering away from vaccine skepticism this election year.

The charter, published on Thursday, alters the makeup and purpose of the panel, opening the door for Health Secretary Robert F. Kennedy Jr. to reclaim his revision of national vaccine policy.

Dr. Jay Bhattacharya objected to the study’s methodology, saying it gave an inaccurate picture of the vaccine’s benefits.

The administration has yet to find a candidate who aligns with Health Secretary Robert F. Kennedy Jr.’s agenda while avoiding his unpopular stance on vaccines.

Lawyers for both sides in the federal lawsuit, brought by six medical organizations, are trying to understand the ramifications of the judge’s decision.

Ruling on a lawsuit brought by several prominent medical organizations, a district court said the federal government had not based its decisions on science in limiting Covid shots and revising the childhood immunization schedule.

A draft State Department memo outlines ways the Trump administration may ratchet up pressure on the African country by ending health support “on a massive scale.”

A federal work group says Covid vaccine injuries deserve urgent attention, even as Health Secretary Robert F. Kennedy Jr. shifts away from talking about vaccine policy.

It takes backbone to solve an enigma like the “falling cat” problem.

In an attempt to understand our own fascination with the shiny minerals, researchers gave some to chimps.

Citing rising costs and shortfalls in federal support, about 20 states are toughening eligibility requirements for patients in drug assistance programs.

Dr. Jay Bhattacharya, who was appointed to the role last week, has offered to publicly endorse vaccination, in particular the measles vaccine, winning over some agency employees.

Even Charles Darwin was puzzled by the evolution of the vertebrate eye. New research suggests that it traces back to a cyclopean invertebrate with a single eye atop the head.

The states, all led by Democrats, used the grants to support a wide variety of functions, including H.I.V. prevention and surveillance.

One panelist accused the F.D.A. of withholding data on potential harms. The advisers also are reviewing research on vaccines given to pregnant women.