CDC

CDC Director Rochelle Walensky also endorsed a mix-and-match approach to boosters that would be flexible for patients and health care providers.

A salmonella outbreak has affected more than 30 states. Federal health officials link it to onions grown in Chihuahua, Mexico, and distributed by ProSource Inc.

"When you have something spread by aerosol, you absolutely want more ventilation," Dr. Anthony Fauci, chief medical adviser to President Biden, said in an interview with CBS.

We don't know the full impact of nonfatal firearms-related injuries. Unreliable data and political pressure have obscured the picture for researchers, the media and the public. That may soon change.

The advisory committee's recommendation follows the FDA's authorization of Pfizer vaccine boosters for people 65 and up. Both regulatory moves will inform the U.S. plan to dispense extra doses.

The Centers for Disease Control and Prevention has expressed concern about the further spread of the delta variant. Health officials have been concerned about holiday weekends during the pandemic.

The Centers for Disease Control and Prevention has expressed concern about the further spread of the delta variant. Health officials have been concerned about holiday weekends during the pandemic.

The CDC is officially recommending a third dose of the Pfizer or Moderna vaccine for people with weakened immune systems. It follows the FDA authorization a day earlier.

Florida and the CDC are at odds over COVID-19 numbers and school boards are pushing back against the governor. Plus, the new UN climate report paints a grim future. Is it too late to reverse the course?

On Monday, the Florida Department of Health called out the discrepancy on Twitter, renewing attention to the state's decision to stop reporting daily COVID-19 numbers even as the Delta variant drives up cases.

A leaked CDC document compared it to the highly contagious children's disease. Data does not support this claim. Nonetheless, the variant is one of the world's most contagious respiratory diseases.

Just shy of 24,000 coronavirus cases were reported in Florida on Friday, and its hospitals are feeling the pressure. Almost 44% of ICU beds in the state are occupied by COVID-19 patients.