WHO says hantavirus outbreak on MV Hondius carries low public risk, but more cases possible

The World Health Organization states that the Andes hantavirus incubation period can be up to six weeks, so more cases may be reported, though the current assessment is that the overall public health risk remains low. The virus is not COVID-19 or influenza and is typically rodent-borne, with rare, limited human-to-human transmission in prolonged close contact. On MV Hondius, about 146 passengers and crew from 23 countries remain under strict isolation and monitoring, including cabin confinement and disinfection. Eight cases have been identified among those connected to the ship (three confirmed, five suspected), with two patients evacuated to the Netherlands in serious condition and another evacuation pending. One Swiss patient who tested positive is receiving treatment in Zurich after a health alert. Authorities in multiple countries are monitoring passengers who previously disembarked, and investigations by South African and international health agencies are ongoing to trace contacts and determine the full extent of transmission. Preventive measures on board include targeted use of medical masks for caregivers and for those with close, prolonged contact with suspected cases.