Dengue fever has been circulating in the tropics for centuries, and for most of U.S. history it was a disease that Americans ...

(WJW) — A 71-year-old woman died after developing a rare and deadly brain infection linked to using tap water from an RV’s water system at a Texas campground, federal health officials confirmed.

Researchers found two mosquito species that tested positive for California serogroup virus, a group of mosquito-borne viruses ...

(NEXSTAR) – The family of a 12-year-old boy who died in South Carolina this month have confirmed his cause of death to be an infection associated with Naegleria fowleri, more commonly referred to as a ...

A common virus carried by up to 90% of people can become deadly if reactivated. A new study suggests chronic kidney disease may trigger this virus. Reactivation can cause PML, a severe brain disease ...

A new brain imaging study has found no evidence of widespread brain inflammation in patients suffering from prolonged symptoms after COVID-19 infection. Instead, the most severe long COVID symptoms ...

VANCOUVER — Health officials in British Columbia say invasive mosquitoes and a virus that can cause brain swelling in humans ...

A new brain imaging study has found no evidence of widespread brain inflammation in patients suffering from prolonged symptoms after COVID-19 infection. Instead, the most severe long COVID symptoms ...

It may have been a brain infection -- not scarlet fever -- that caused Mary Ingalls of "Little House on the Prairie" to go blind. A new study published in Pediatrics on Feb. 4 shows that Laura Ingalls ...