CDC concludes hantavirus response as outbreak eases

Key Points:

• The CDC has ended its response to the hantavirus outbreak linked to the MV Hondius cruise ship after completing the 42-day monitoring period for all potentially exposed U.S. citizens, with no new cases reported in the country.
• The outbreak involved the Andes virus, a rare hantavirus strain typically found in Argentina and Chile, which can spread through close human-to-human contact, unlike other hantaviruses.
• All 18 passengers exposed to the virus have completed monitoring at the National Quarantine Unit and returned home, with health officials emphasizing the extremely low risk to the general public.
• CDC scientists collaborated with Argentine public health officials to investigate the outbreak's origins by trapping and testing rodents along the cruise ship's route, with preliminary results showing no evidence of the virus in local rodent populations.
• The likely source of exposure remains under investigation, but no sustained transmission of the virus occurred in the United States.