Hantavirus cruise ship cluster tracking ends in Taiwan; passenger tests negative

Taiwan has concluded its tracking of a Hantavirus cluster that emerged on the cruise ship "Hondius," with no risk of transmission to the local community confirmed. The outbreak had drawn international attention.

Taiwan's Centers for Disease Control (CDC) reported that a New Zealand national, who had been aboard the ship, entered Taiwan on May 7. Following expert recommendations, the individual underwent 42 days of enhanced self-health management and monitoring. Throughout this period, the passenger remained in good health, exhibiting no symptoms such as fever, cough, or difficulty breathing, nor any other signs suggestive of Hantavirus infection.

Four separate tests were conducted on May 14, May 20, May 27, and June 3. These included nucleic acid testing (PCR) for Hantavirus Andes virus and IgM/IgG antibody tests. All results came back negative. Consequently, the individual's enhanced self-health management measures were lifted on June 7.

The CDC stated that the passenger has completed the 42-day monitoring period with consistently negative test results, confirming no transmission risk to the community. Taiwan's IHR focal point has officially notified the WHO and New Zealand's IHR focal point of these findings.

Hantavirus Andes virus primarily circulates in parts of South America and is one of the few types known to have potential human-to-human transmission, which heightened international concern over the cruise ship outbreak. However, the World Health Organization currently assesses the global public health risk from this event as low. As of June 2, the "Hondius" outbreak had reported 13 cases, including 11 confirmed and 2 probable cases, with three deaths, resulting in a fatality rate of approximately 23%. International investigations and contact tracing are ongoing, with over 600 contacts, about 53% considered high-risk, being monitored.

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The individual has completed the 42-day monitoring period and all test results were negative, confirming no transmission risk to the domestic community.