Doctors assumed he had the seasonal flu and thought he would get better with proper nutrition, hydration and rest. But his fever did not abate despite paracetamol and with worsening symptoms, he had to be hospitalised. Yash was diagnosed with pneumonia caused by the bacteria Streptococcus pneumoniae and was put on antibiotics.

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 has circulated in humans for decades.

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.

Plenty of viruses are having their strongest season for years. But experts have urged calm about HMPV, which is not a new disease — even if you've never heard about it.