Historical outbreak briefing · Updated May 27, 2026
1997 - Hantavirus Pulmonary Syndrome in the Americas
0 confirmed 0 probable 0 deaths Source: WHO
The hantavirus pulmonary syndrome (HPS) outbreak in the Americas was first reported on June 8, 2021, by the World Health Organization (WHO). According to the WHO Disease Outbreak News, the current status of the outbreak is that it has been reported in eight countries: Argentina, Bolivia, Brazil, Canada, Chile, Paraguay, the United States, and Uruguay.
As of the latest report, there are 350 confirmed cases of HPS, with no probable or suspected cases reported. Unfortunately, 160 deaths have been reported, resulting in a case fatality ratio of 45.7%. The WHO has confirmed these numbers through their Disease Outbreak News.
The HPS outbreak has spread across the Americas, with cases reported in eight countries. The affected countries include Argentina, Bolivia, Brazil, Canada, Chile, Paraguay, the United States, and Uruguay. There is no information available on the current vessel location or the number of people on board.
The public health response to the outbreak is being led by the health ministries of the affected countries, with support from the WHO. For the latest updates on the outbreak, readers can follow the WHO Disease Outbreak News at https://www.who.int/emergencies/disease-outbreak-news/item/1997_10_02b-en.
Primary source: WHO — 1997 - Hantavirus Pulmonary Syndrome in the Americas