Health officials in King County are currently monitoring several residents for possible exposure to the rare Andes strain of hantavirus connected to the MV Hondius cruise ship outbreak. As of now, there are no confirmed hantavirus cases in King County and officials say the public risk remains low.
Public Health / Seattle & King County confirmed earlier this week that three residents were initially being monitored after potential exposure during international travel connected to the cruise outbreak. One person had been aboard the ship itself, while two others were seated near an infected passenger on a flight. A fourth resident was later added to monitoring after being on a related international flight.
The outbreak involves the Andes strain of hantavirus, which is significant because it is the only known hantavirus capable of limited person-to-person transmission. Most hantavirus infections are instead linked to exposure to infected rodent droppings, urine, or saliva.
According to health officials, none of the monitored King County residents have shown symptoms or tested positive. Monitoring and contact tracing remain active in coordination with the CDC and Washington State Department of Health.
Symptoms of hantavirus can include:
- Fever
- Fatigue
- Muscle aches
- Headaches
- Nausea
- Coughing and shortness of breath in severe cases
Seattle-area discussion online has ranged from concern to reassurance, with many users emphasizing that the monitored individuals are asymptomatic and that public health officials consider the overall risk low.