US Sees Rise in HMPV Cases: What You Need to Know
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Cases of human metapneumovirus (HMPV) are on the rise across the United States, prompting health authorities to increase monitoring.
Data from the Centers for Disease Control and Prevention shows the virus accounted for around 5% of positive respiratory tests nationwide in early March.
The surge, observed since fall 2025, has drawn attention because the illness often mimics the common cold, making it harder to distinguish without testing.
While most cases remain mild, the absence of a vaccine or specific antiviral treatment adds to concerns, especially for vulnerable populations.
HMPV is a respiratory virus first identified in 2001 and belongs to the same family as Respiratory Syncytial Virus.
It spreads through respiratory droplets released when an infected person coughs or sneezes, as well as through close contact and touching contaminated surfaces.
Symptoms resemble common infections, including cough, fever, nasal congestion and shortness of breath.
Health experts warn that infants and young children, older adults above 65, and individuals with weakened immune systems are more likely to develop severe illness.
There is currently no vaccine or targeted treatment available for HMPV, with care largely being supportive and most people recovering on their own.
To reduce the risk of infection, authorities recommend basic preventive measures such as frequent handwashing, avoiding close contact with sick individuals, disinfecting commonly touched surfaces, and maintaining good ventilation indoors.
