Buenos Aires province is experiencing a hantavirus outbreak in rural and semi-rural areas, a provincial health ministry epidemiological bulletin recently reported.

According to the report, there have been 18 cases and seven deaths so far confirmed in 2026, a 50% increase compared to the same period last year. Historically, the virus has shown low circulation during these months of the year.

The official report, corresponding to the week between May 3 and 9, also warned that cases within endemic areas of Buenos Aires province have grown significantly since the beginning of 2026.

Health authorities recommend reinforcing preventive measures, especially in rural areas, sheds, enclosed properties, and areas with rodent populations.

The report comes on the heels of international concern after an outbreak on Dutch cruise MV Hondius that departed from Tierra del Fuego on April 1. Eleven were infected, and three people died.