Cases of human metapneumovirus (HMPV) and other seasonal viruses are on the rise across the northern hemisphere in early 2025, according to the World Health Organization. While news reports and social media videos have caused concern about a potential HMPV outbreak in China,

As China experiences a rise in respiratory infections this winter, one little-known virus has gotten a lot of attention – and some people may worry whether the rise in cases could be felt more broadly around the world.

Experts say the disease is likely not going to be the next pandemic and the worry is a result of heightened wariness for respiratory illness in a post-Covid world. HMPV is a respiratory virus that regularly circulates during cold and flu season.

Most HMPV infections are mild, resembling bouts of the common cold. But severe cases can result in bronchitis or pneumonia, particularly among infants, older adults and immunocompromised people. Patients with pre-existing lung conditions, such as asthma, chronic obstructive pulmonary disease or emphysema, are at higher risk of severe outcomes.

HMPV is a respiratory disease that causes flu or cold-like symptoms. However, it can increase risks or lead to more serious complications like bronchitis or pneumonia, particularl

An outbreak of human metapneumovirus in China has raised concerns of another widespread respiratory illness, but HMPV has been around for years and it’s likely infected most people once in their lifetime.

Authorities in Beijing have downplayed surge in cases, which comes five years after world was first alerted to emergence of Covid-19