A spike in human metapneumovirus (HMPV) cases reported in China and other Asian countries has sparked concerns about a potential global health threat. However, experts say HMPV, which typically causes mild respiratory illnesses like cough, fever, and congestion, is not new and doesn’t pose a pandemic risk. In the U.S., HMPV activity remains low, with less than 2% positivity rates in recent weeks, compared to flu and COVID-19. Public health officials advise taking standard precautions against respiratory infections, such as handwashing and avoiding sick individuals.