As China experiences a rise in respiratory infections this winter, one little-known virus has gotten a lot of attention – and some people may worry whether the rise in cases could be felt more broadly around the world.

Rising cases of common respiratory illnesses in China and elsewhere around the Northern Hemisphere are within the range expected for winter, WHO says.

The Chinese Centre for Disease Control and Prevention (China CDC) reported an uptick in common respiratory infections, including seasonal influenza, respiratory syncytial virus (RSV), hMPV, and SARS-CoV-2,