We have to go toe-to-toe with this administration and resist its attacks on public health.

Shock and grief rippled through the health community as lifelines for care were abruptly severed.

The stop-work order on U.S.A.I.D.-funded research has left thousands of people with experimental drugs and devices in their bodies, with no access to monitoring or care.

President Trump’s pause on aid, and the gutting of the primary aid agency, could jeopardize the health of more than 20 million people worldwide, including 500,000 children, experts say.

Lifesaving treatment and prevention programs for tuberculosis, malaria, H.I.V. and other diseases cannot access funds to continue work.

Patients and health care advocates said the abrupt decision to halt U.S. funding for a lifesaving H.I.V. program led to widespread confusion. The backtracking didn’t help.

Many of the frozen programs are aimed at alleviating disease and malnutrition, but even security programs with U.S. funding are shutting down.

PEPFAR’s computer systems also are being taken offline, a sign that the program may not return, as Republican critics had hoped.

Pepfar, which is estimated to have delivered lifesaving treatment to as many as 25 million people in 54 countries, faces a funding delay of as long as 180 days.