Poland’s Chief Sanitary Inspectorate has placed four individuals under epidemiological surveillance following potential exposure to the Andes hantavirus linked to a recent outbreak on the expedition vessel MV Hondius.
Status of Monitored Individuals
Four people currently in Poland are under medical observation after potential contact with the infection associated with the cruise ship MV Hondius. Authorities confirm that these individuals remain asymptomatic and are in good health. These measures are strictly precautionary, and officials stress that the risk to the general Polish population remains extremely low.
The monitoring involves tracking health status and rapid detection of any potential symptoms to prevent further transmission. No cases of the virus have been confirmed within Poland to date.
Outbreak on MV Hondius
The World Health Organization was notified of the outbreak on May 2, 2026. Reports indicate 11 cases—all confirmed as the Andes hantavirus—and three passenger deaths. Unlike many other hantaviruses, the Andes variant is known to have the rare potential for human-to-human transmission in instances of close contact.
MV Hondius, operated by Oceanwide Expeditions, departed from Ushuaia, Argentina. Following the discovery of the outbreak, affected passengers and crew were evacuated and subjected to sanitary protocols.
Quarantine and Port Procedures
The vessel is currently undergoing decontamination in Rotterdam with 25 crew members and two medical personnel remaining on board. Polish captain Jan Dobrogowski, who is leading the operations on the ship, is currently asymptomatic but is required to undergo a six-week quarantine in line with the virus’s maximum incubation period, dating from the last contact with infected individuals on May 6.
Public Health Risk Assessment
Hantaviruses typically spread through contact with the waste of infected rodents in poorly ventilated spaces. Polish authorities emphasize that the specific Andes variant found on the ship is not naturally present in the domestic rodent population in Poland, further mitigating local risk. International health agencies continue to monitor passengers and crew members worldwide to contain the spread.