HIV physician John Weiser talks about why complying with President Donald Trump’s orders to erase transgender people is bad for science and society. And he notes that acquiescing didn’t spare the CDC from further harm.

Losing its measles-free status could be expensive for the U.S. A new study estimates that an outbreak the size of the one in West Texas earlier this year, with 762 cases and 99 hospitalizations, costs about $12.6 million.

Through shrouded bureaucratic maneuvers, White House budget director Russell Vought and DOGE have quietly undercut outbreak response, HIV treatment, and dementia care in communities across America.

Research has not deeply examined Tylenol risks in young children, and many rigorous studies refute a link between vaccines and autism.

RFK Jr.'s leadership upheavals have shaken the confidence many states have in the CDC and led to the fracturing of a national, cohesive immunization policy that’s endured for 30 years.

Trump officials sowed fear and confusion among CDC scientists, slowing their response to the measles outbreak in West Texas. Cases surged and sparked new outbreaks in the U.S. and Mexico. These linked outbreaks have sickened more than 4,500 and killed at least 16.

While Congress fails to stave off cuts to HIV care, community leaders in Mississippi and beyond race to limit the damage.

Researchers laid off in April were putting the finishing touches on in-depth HIV surveys that guide treatment and prevention. Some staff have been reinstated, but data remains in limbo.

Countries that produced their own vaccines in the Covid-19 pandemic had first dibs on the shots. While the U.S., home to Moderna and Pfizer, rolled out second doses of mRNA vaccines in 2021, hundreds of thousands of people in countries that didn’t manufacture vaccines died waiting.

A disruption in federal funds has jeopardized HIV testing and outreach in Mississippi, and researchers warn of a resurgence of the epidemic in the region.