Northern provinces in China have been hit with a surge of HMPV infections in the last three weeks. This has forced the centre for disease control (CDC) to warn the public to wear masks and avoid crowds. But claims of overwhelmed hospitals and fears of another pandemic that have been spreading on social media appear unsubstantiated.

Cases of human metapneumovirus, or HMPV, a contagious virus that can lead to respiratory disease, is reportedly spiking in northern China. Infectious disease experts say risk to the U.S. is low.

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

Cases of human metapneumovirus (hMPV) have jumped in the UK amid speculation about an outbreak in China. Data shared by health authorities shows that infections have been going up during December and are expected to continue to rise in the coming weeks.