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,

HMPV is a respiratory virus that regularly circulates during cold and flu season. It is spread through coughing, sneezing and coming into contact with contaminated surfaces. It presents as common cold symptoms including cough,

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.