Caribbean is low risk but CARPHA urges vigilance regarding Hantavirus

THE Caribbean Public Health Agency (CARPHA) is advising its Member States and the public that the risk of infection of hantavirus is low in the Caribbean region; however, it is urging the exercise of vigilance.

In a May 6,2026 release CARPHA noted that the World Health Organization (WHO) was notified by the Focal Point of the United Kingdom’s International Health Regulations (2005) of a cluster of respiratory illness affecting passengers and crew on a cruise ship in the Central Atlantic Ocean, with laboratory confirmation of hantavirus in one critically ill patient.

CARPHA was alerted to this development on May 3 through its Information Environment and Monitoring platform. As of May, 6 2026 the WHO reported eight cases – three confirmed and five suspected, as well as three deaths.

Hantaviruses infect rodents and can be transmitted to humans through animal-to-human contact with contaminated urine, droppings, or saliva.

CARPHA Executive Director Dr. Lisa Indar assured that, “At this time, the risk to the Caribbean region is considered low. In the Americas, hantaviruses are most commonly transmitted by wild field rodents rather than urban rat populations, where transmission is less likely”.

Dr. Indar also pointed out that although human-to-human transmission of hantavirus is possible, it is rare.

Recognising the Caribbean’s position as the world’s leading cruise destination, accounting for approximately 44% of global cruise traffic, with an estimated 16.3 million passengers recorded in 2025, CARPHA is encouraging all Member States to remain vigilant. Countries are advised to review and strengthen vessel surveillance systems and public health protocols, particularly at ports of entry.