Human Metapneumovirus How Common 2025. At the forefront of this crisis is the human metapneumovirus (hmpv), which has reportedly led to overwhelmed hospitals and increased fatalities. First identified in 2001, it is one of the most common causes of respiratory infections,.

It often causes upper respiratory infections, though it can sometimes lead to more severe conditions. With human metapneumovirus (hmpv) spreading in china, here’s what you need to know about the respiratory disease.