How many Americans haven't caught COVID? CDC publishes latest estimates
In the most recent data, 77.5% of Americans ages 16 and older have antibodies from at least one prior infection.
Malaria confirmed in Florida mosquitoes after several human cases
Florida and Texas recently reported the first known cases of people contracting malaria in the U.S. since 2003.
More overdose deaths seen from fentanyl mixed with xylazine
Xylazine, an animal tranquilizer also known as "tranq," was detected in more than 1 in 10 fentanyl deaths across 20 states and D.C.
CDC recommends first RSV vaccines for some seniors
The respiratory illness RSV can be serious, especially in children and older adults.
CDC tracking new COVID variant EU.1.1
Nearly 100 cases of the COVID variant EU.1.1 have been reported in Utah — more than any other state.
E-cigarette sales surge — and so do calls to poison control, health officials say
E-cigarette sales in late 2022 were 46% higher than in early 2020. And poison control calls for children ingesting liquid or inhaling vapor have doubled from several years ago.
CDC to investigate swine flu virus behind woman's death in Brazil
The patient, a 42-year-old woman living in the Brazilian state of Paraná, never had direct contact with pigs.
Winter saw "large spike" in very rare pediatric brain infections, CDC reports
At least 102 were hospitalized in December, nearly double an earlier peak.
Fewer babies born in 2022, and teen births decline, CDC reports
The decline in births is "a very small difference" from the year before.
U.S., Mexico seek international emergency over deadly fungal outbreak
Officials fear a repeat of a deadly outbreak from Mexico that killed nearly half of meningitis patients.
COVID hospitalizations reach new record low nationwide, CDC says
This is the first time fewer than 9,000 new weekly admissions were reported.
Pfizer's Paxlovid still free, for now, after FDA grants full approval
Paxlovid, Pfizer's COVID-19 treatment pills, could go to the private market by late summer.
More mpox cases reported as authorities brace for summer resurgence
Authorities recently reported finding drug-resistant strains of the monkeypox virus.
HIV infections continued downward trend, CDC reports
The decline in new HIV cases was driven by a slowdown in infections among young gay and bisexual men.
Contaminated eye drops outbreak climbs to 81 cases, 4 deaths
FDA testing has now found contamination in unopened bottles of EzriCare eye drops and Delsam Pharma's eye ointment.