As cases of the HMPV virus continue to increase in the U.S. and in China, here's what you need to know about the virus.

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.

China has raised an alarm about another virus, five years after the Covid-19 pandemic, as it has now spread to other countries. Cases of the human metapneumovirus (HMPV) involving infants – first, a three-month-old girl and later,