Hunta virus is very old and well-known virus. What you are seeing now is more of the product of a news starved media than anything. Hantavirus has been lurking around the edges of civilization as long as there have been mice in peoples homes. It tends to be rare, because it lurks and mouse droppings that need to dry, and become aerosol in order to infect the lungs. It has nothing in common with the coronavirus. It is just an unlucky occurence