Boats approach the Dutch flagged hantavirus-stricken cruise ship MV Hondius after it arrived at the industrial port of Granadilla de Abona on the island of Tenerife in Spain's Canary Islands on May 10, 2026. Jorge Guerrero/AFP via Getty Images
Forty-one people are under monitoring in the United States for hantavirus, the Centers for Disease Control and Prevention said on May 14.
Most of those being monitored were at one time on board the MV Hondius, a cruise ship that experienced an outbreak of the disease after it sailed from Argentina on April 1 to remote locations such as Antarctica.