Hantavirus Infections

Hantaviruses are a group of zoonotic viruses belonging to the Bunyaviridae family. These viruses are primarily transmitted to humans through contact with infected rodents or their urine, saliva, or droppings. Hantavirus infections can lead to two distinct clinical syndromes: hemorrhagic fever with renal syndrome (HFRS) and hantavirus pulmonary syndrome (HPS). HFRS is characterized by fever, renal dysfunction, and hemorrhagic manifestations. The severity of HFRS varies depending on the specific hantavirus species. In Asia and Europe, Hantaan virus and Seoul virus are common causes of HFRS, while in the Americas, Sin Nombre virus is associated with HPS. HFRS may progress to acute kidney injury, leading to complications such as hypotension and coagulopathy. HPS, prevalent in the Americas, is characterized by rapid-onset fever, respiratory distress, and pulmonary edema. The Sin Nombre virus is the primary causative agent in North America. HPS can progress rapidly, causing severe respiratory failure and a high mortality rate. Early diagnosis and supportive care, including respiratory support, are critical for managing HPS. Preventive measures for hantavirus infections include avoiding contact with rodents and their habitats, especially in areas where hantavirus is endemic. Proper sanitation, rodent control, and education about the risks associated with rodent exposure contribute to reducing the risk of hantavirus transmission.