Hidden respiratory virus HMPV surges as flu wanes
A little-known respiratory virus called human metapneumovirus (HMPV) is rising nationwide as flu season winds down, with wastewater data showing high community activity. Most infections are mild and last 2–5 days, but HMPV can progress to pneumonia, bronchitis, or trigger asthma flares, particularly in young children, older adults, and those with weakened immune systems. There is no vaccine and no specific treatment. Diagnosis is usually clinical, sometimes confirmed by nasal/throat swabs, and transmission occurs via droplets and contaminated surfaces. Prevention centers on staying home when sick, hand-washing, and keeping surfaces clean. Most people will be infected with at least one HMPV strain in their lifetime.
