What is hantavirus?

Hantaviruses are a family of viruses carried mainly by wild rodents. Different species of hantavirus cause two main human diseases: hantavirus pulmonary syndrome (HPS), found mostly in the Americas, and hemorrhagic fever with renal syndrome (HFRS), found mostly in Europe and Asia. Most human infections happen when a person breathes in particles from rodent urine, droppings, or saliva, especially when cleaning enclosed spaces with rodent infestations. Person-to-person transmission is rare and has only been described for some strains, such as Andes virus, in close and prolonged contact. According to the World Health Organization, the global risk of hantavirus remains low, and no travel or trade restrictions are recommended based on current information. However, early recognition and supportive care are essential when infection is suspected.