It has been told that near the end of the world there would be many new diseases in the world and some of them won't be curable. Whether it be Covid 19 or Human Metapneumovirus (HMPV), the world isn't looking healthy at all. 
What makes us more concerned is that it is difficult to detect whether someone has a seasonal cold or HMPV as the symptoms for HMPV are similar to cold. You may have a runny nose or a cough, and you need to get some tests to know we are suffering from which diseases.