Though it is commonly called the "winter vomiting disease," norovirus outbreaks are still cropping up around the country in late May.

A mosquito-borne virus circulating since the 1700s went unnoticed until genomic sequencing revealed its centuries-long history and unique two-cycle transmission.

Scientists discover new viruses every year. A catalogue of the riskiest ones could help us spot the next pandemic before it takes hold.

Mosquito season is underway, and health experts say simple prevention steps can reduce your risk of West Nile virus.

The first human case of West Nile virus in Long Beach and current mosquito-carrying activity in the San Gabriel Valley has been reported this month.

Health officials say mosquitoes carrying West Nile virus have been found in Grant Park as the CDC reports the earliest and most active start to the virus season in more than 20 years.

Sarah Kennedy found herself grieving the child she had thought was perfectly healthy only a day before.

West Nile virus has been detected in mosquitoes near Atlanta's Grant Park, prompting mosquito-control efforts as the CDC warns the United States is experiencing an unusually early mosquito season.

Samples from the Sedona Wastewater Treatment Plant tested positive for the measles virus. That indicates that at least one person with a recent infection has been in the area.

Researchers detected Usutu virus RNA in nine of 818 wild carnivores sampled across the Netherlands, while no animals tested positive for West Nile virus RNA. Neutralizing antibodies to one or both viruses in red foxes and stone martens indicate broader spillover exposure and suggest these species may support arbovirus surveillance.