President Trump’s decision to pull out of the international health agency could deprive the United States of crucial scientific Read More

Experts fear a resurgence of infections in low-income countries if the ban were to continue. The waiver remains in place, Read More

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

A pandemic is not inevitable, scientists say. But the outbreak has passed worrisome milestones in recent weeks, including cattle that Read More

Outbreaks among the unvaccinated are a predictable consequence of falling immunization rates. But even vaccinated adults may be vulnerable to Read More

In its original form, the virus survives in just two countries. But a type linked to an oral vaccine used Read More

Vaccines today are more efficient and contain far fewer stimulants to the immune system than some used decades ago.Read More

Rates of gonorrhea declined in 2023, while diagnoses of syphilis and chlamydia held roughly steady, according to new C.D.C. Read More

The epidemic in Africa continues to grow, prompting fears of another outbreak in the U.S. But the vaccine is Read More

Breaking up the C.D.C., moving funds from the N.I.H. — conservatives have floated changes should Mr. Trump Read More