Respiratory viruses are continuing to spread across the United States and such activity "is expected to continue for several ...

Avian influenza A (H5N1) has mutated, so the symptoms of bird flu could change as more people get sick in 2025.

New CDC data indicates a rise in cases of norovirus, often colloquially referred to as "stomach flu." Test positivity has ...

Rates of norovirus in that CDC system have reached levels at or above last season's peak in all regions of the country.

The US Centers for Disease Control and Prevention is urging hospitals to accelerate advanced testing of people they suspect ...

The WHO has downplayed concerns over a rise in HMPV cases, saying outbreaks are normal during winter in the Northern ...

The U.S. Centers for Disease Control and Prevention (CDC) confirmed another human H5N1 avian flu case -- otherwise kno ...

A child ill with fever and conjunctivitis in San Francisco tested positive for bird flu but had no known source of ...

Tanzania has confirmed an outbreak of Marburg virus disease in the northwestern Kagera region after one case tested positive for the virus following investigations and laboratory analysis of suspected ...

The CDC announced on Thursday its recommendation to test hospitalized influenza A patients more quickly and thoroughly to distinguish between seasonal flu and bird flu.

RSV cases peaked earlier this month, but experts ask people to remain vigilant in preventing its spread. RSV is a respiratory ...