Hantavirus Cases Confirmed Among Cruise Passengers; CDC Confirms Low Public Risk as Monitoring Expands

Hantavirus Cases Confirmed Among Cruise Passengers; CDC Confirms Low Public Risk as Monitoring Expands

As of May 8, 2026, the Centers for Disease Control and Prevention (CDC) has activated its Emergency Operations Center at Level 3, the lowest of three response levels, to monitor a hantavirus outbreak linked to a cruise ship. Key Details of the ResponseActivation Purpose: This level allows the agency to streamline resource coordination and reassign personnel—including scientists and epidemiologists—to assist with the international response.Public Risk: Health officials, including those from the CDC and WHO, maintain that the overall risk to the general public remains low.Outbreak Origin: The cluster is linked to the MV Hondius, a cruise ship that departed from Argentina in March. As of early May, officials have confirmed at least five cases (with several others suspected) and three deaths among passengers.Strain Specifics: The outbreak involves the Andes strain of hantavirus, which is notable because it is one of the rare hantavirus species capable of limited human-to-human transmission. Current Situation in the USWhile the outbreak occurred internationally, the CDC is monitoring passengers who have returned to the United States. Residents in states like Texas, Arizona, and Georgia have been identified as former passengers; currently, these individuals are reported to be asymptomatic and under monitoring as a precaution.