A surge in respiratory infections in China has put in focus a little known virus—the Human Metapneumovirus (HMPV)—largely affecting children under the age of 14. The virus shares some ... China is facing an outbreak of the human metapneumovirus (HMPV), a respiratory virus causing flu-like symptoms. The virus, which spreads through droplets and close contact, primarily affects children, the elderly, and immunocompromised individuals. SINGAPORE: China is seeing a surge in respiratory infections, including cases of the flu-like human metapneumovirus (HMPV) amid an annual winter spike across northern provinces, particularly... China is undergoing an upsurge in respiratory diseases, with human metapneumovirus (HMPV) emerging as a key concern. Last month, the country began piloting a monitoring system for winter illnesses, including pneumonia of unknown origin.