Epidemiological Alert Hantavirus Pulmonary Syndrome in Americas Region - 19 December 2025

Given the increase in cases of hantavirus infection reported during 2025 in endemic countries of the Americas Region, particularly in the Southern Cone, and considering the increase in lethality observed in some of these countries, the Pan American Health Organization / World Health Organization (PAHO/WHO) reminds Member States of the need to maintain and strengthen epidemiological surveillance of this disease, ensure timely diagnosis and proper management of cases, as well as promote intersectoral actions aimed at reducing the associated environmental and occupational risk.