Even as the world fixates on hMPV, a genuine pandemic threat is emerging in the form of H5N1 bird flu. The virus has jumped to cows and spread across the country through dairy herds, poultry farms and even zoos, infecting millions of animals and dozens of people, the vast majority of them farm workers.

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.