While cases are climbing in China, the situation is very different from what it was when Covid-19 emerged five years ago, medical experts say. HMPV is common and decades old.

Authorities in China said they are monitoring cases of human metapneumovirus, or HMPV, after a reported increase inside the country, according to Reuters. Although cases are increasing at a rapid rate,

The human metapneumovirus is reportedly surging in China, but should Americans be concerned? Here's what to know about HMPV symptoms and more.