A cruise ship crisis raises global concerns about a potential nationwide outbreak, prompting a review of infection prevention responses.

The MV Hondius expedition ended abruptly after announcing the deaths of three passengers due to hantavirus. Mainly spread by rodents, the reported Andes strain can be transmitted from person to person. Infection impacts the lungs, with 38 percent of people who develop significant respiratory symptoms dying from the disease.

Although the ship was set to dock at the Canary Islands in Spain for a full investigation and disinfection process by the World Health Organization (WHO), 30 passengers disembarked in St. Helena without undergoing contact tracing. Six of those passengers were Americans who currently report no symptoms.

The Centers for Disease Control and Prevention (CDC) is monitoring U.S. passengers at home and abroad, as well as coordinating with international health organizations and authorities. At present, the risk of contracting Andes strain remains relatively low.

To mitigate the spread of hantaviruses, prioritize pest control. The National Pest Management Association (NPMA) recommends performing frequent rodent inspections, removing potential food sources, limiting entryways, and eliminating shelter areas. Maintaining waste diversion efforts and cleaning high-traffic areas are effective proactive measures to reduce rodent risks. Disinfection of high-touch surfaces and contaminated areas can also prevent infection.