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

Supplies of a highly nutritious treatment are running out, according to UNICEF.Read More

Both patients were dairy workers whose illnesses were mild. Investigators are continuing to evaluate the contacts of a Missouri patient Read More

From Covid to dengue, viral outbreaks seemed to be popping up all over. But maybe Americans are just more attuned Read More

In 2016, the global health authorities removed a type of poliovirus from the oral vaccine. The virus caused a growing number Read More

Previous human infections occurred in workers on farms. But community transmission of the virus remains unlikely for now, experts said.Read More

The virus is poised to become a permanent presence in cattle, raising the odds of an eventual outbreak among people.Read More