A rise in human metapneumovirus is causing concern in New Jersey, mimicking cold symptoms but posing risks for infants and seniors. Health experts stress hygiene and staying home when sick.

Among infants born very preterm, human milk feeding at hospital discharge is associated with fewer respiratory hospital admissions during their first 18 months than exclusive formula feeding.

Sanitation testing finds concentrations of the virus in Sacramento and Davis, along with Bay Area communities.

A virus with no treatment or vaccine is rising in NJ, adding to flu, RSV and COVID cases in NJ. Here's the symptoms, how serious it is and more.

The virus can cause respiratory illness in people of all ages, especially young children, older adults and the immunocompromised.