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Viruses July 26

Health officials alarmed by unprecedented July spike in West Nile-infected mosquitoes in 2 major cities

Mosquitoes in all seven Minneapolis-Saint Paul metro counties in Minnesota tested positive for West Nile virus, and over 25% of pools show infection rates typical of late August.

Health July 8

CDC declares bird flu emergency over as experts warn of possible fall resurgence

The CDC ends its emergency response to H5N1 bird flu after recording 70 human cases and one death nationally, even as experts note seasonal patterns may increase fall cases.

Travel July 2

The gross reason airplane passengers might want to avoid using the water on flights

Research shows airplane surfaces and onboard water may harbor contaminants, with bathrooms shown to be particularly unsanitary, according to travel and health experts.

VIDEO June 27

LAB LEAK?: Origins of COVID-19 released in World Health Organization report

Ó£ÌÒÊÓƵ senior national correspondent Rich Edson has the latest on the reported origins of COVID-19 on 'The Story.'

Health June 24

Hepatitis A outbreak infects thousands of travelers at popular destinations

Hepatitis A outbreak in popular European destinations has sickened thousands, primarily affecting unvaccinated individuals and those with limited healthcare access.

Health June 19

FDA approves first twice-yearly injection that prevents HIV infection

The injectable HIV prevention treatment Yetzugo, made by Gilead Sciences, has received FDA approval, offering a twice-yearly alternative to daily medications.

Health June 17

New COVID variant may cause 'razor blade throat' — here's what to know

Patients are reporting a "razor blade throat" symptom — potentially due to the new "Nimbus" COVID variant — in which their throat feels as if they've swallowed shards of glass.

Health May 29

Measles cases continue to climb ahead of summer travel: Get the latest numbers

Amid the ongoing U.S. measles outbreak, get the breakdown of how many cases have been reported by state. The vast majority have been confirmed in West Texas.

Health May 27

CDC removes COVID vaccine recommendation for healthy children and pregnant women

New CDC guidance removes COVID-19 vaccine from recommended schedule for healthy kids and pregnant women, announced by Robert F. Kennedy Jr. and health experts.

Health May 23

Cold sores may play role in Alzheimer's development, new research reveals

A new study links cold sores to Alzheimer's, highlighting HSV-1's role. Women in particular could have a higher risk. Anti-herpetic drugs may reduce dementia chances.

Health May 21

4 biggest handwashing mistakes that could increase germs and viruses

Many neglect handwashing after public outings, risking germ spread. Soap and water are vital, especially when coughing or sneezing, to prevent infections, experts say.