CDC Concludes Hantavirus Outbreak Response for M/V Hondius

The CDC has concluded its public health response to a hantavirus outbreak linked to the M/V Hondius cruise ship. According to Dr. Brendan Jackson, acting director of the CDC’s Division of High Consequence Pathogens and Pathology, all monitored U.S. citizens completed a 42-day monitoring period without developing the Andes virus.

Dr. Jackson announced that all identified U.S. citizens with potential exposure are now home safe. The response involved a coordination of federal agencies, international organizations, and health systems across multiple states.

The operation included deploying CDC staff to the Canary Islands to meet passengers and supporting their repatriation to Nebraska. CDC officials then worked with state and local health departments to identify and monitor additional U.S. residents who may have been exposed.

Did You Know? U.S. citizens identified as potentially exposed to the Andes virus were required to complete a 42-day monitoring period to ensure they did not develop hantavirus disease.

Why were some passengers required to undergo 24/7 monitoring?

Monitoring requirements were determined by the federal government and tailored based on the resources available in each jurisdiction, according to Dr. Jackson.

Some passengers were permitted to undergo home quarantine in their home states if those states agreed to provide 24/7 monitoring. Others were denied home quarantine if the state could not or would not provide that level of oversight.

Dr. Jackson noted that some passengers elected to complete their stay at the National Quarantine Unit voluntarily. He cited the complexity of the response, which involved various federal, state, and local partners.

Expert Insight: Samantha Carter suggests that the variation in quarantine locations highlights a critical tension between federal health mandates and state-level resource capacity. The case of Angela Perryman, who remained in a facility despite a medical review supporting home release, underscores how administrative federal decisions can override individual medical assessments during high-consequence pathogen responses.

What is the current understanding of the outbreak’s origin?

The likely source of exposure is still under investigation. Dr. Jackson stated that the Andes virus is prevalent in certain parts of Argentina.

An update from the CDC on the Hantavirus outbreak on the MV Hondius cruise ship

Two disease ecologists from the CDC’s Division of High Consequence Pathogens and Pathology recently traveled to Argentina to work with local epidemiology partners. The team trapped and tested rodents in areas connected to the outbreak.

Preliminary information indicates that all rodents identified during this effort tested negative. CDC scientists intend to use the gathered information to strengthen strategies for detecting and preventing future outbreaks.

Who was affected by the Andes virus outbreak?

The outbreak resulted in three deaths and several other cases. Dr. Jackson confirmed that none of the Americans involved in the outbreak became ill.

All passengers who developed the disease were residents of other countries. Dr. Jackson stated there is a coordinated effort to understand the illness courses of those individuals, and more information may be released in the future.

The CDC indicated that scientific work will continue even though U.S. monitoring has ended. Future efforts could include further research into areas of Argentina where the virus has not been fully detected.

Frequently Asked Questions

Did any U.S. citizens develop hantavirus disease during this outbreak?
No. According to Dr. Brendan Jackson, none of the U.S. citizens being monitored developed hantavirus disease.

Which cruise ship was associated with the Andes virus exposure?
The outbreak was associated with the M/V Hondius.

Where did the CDC conduct rodent trapping to find the source of the virus?
CDC disease ecologists conducted trapping and testing in Argentina.

Do you think federal monitoring requirements should be standardized across all states during health emergencies?