Submitted by San Juan County.
Recently, hantavirus has been in the spotlight due to a cruise ship outbreak. Many are asking what hantavirus is, how it spreads, and if there’s a need for concern. Public health officials assert that the overall risk remains low. Here’s a breakdown of the situation, along with some helpful insights.
Why the Increased Attention on Hantavirus?
Hantavirus first gained widespread attention following a 2025 incident involving actor Gene Hackman’s wife. Besides this, a recent report from a cruise ship indicated a cluster of severe respiratory illnesses. As of mid-May, there were eleven cases reported, including three deaths. Fortunately, those who returned from the cruise to the United States are currently symptom-free.
What Exactly is Hantavirus?
Hantavirus is a rare viral infection typically spread through contact with infected rodents or their droppings, urine, or saliva. It can lead to hantavirus pulmonary syndrome (HPS), a severe respiratory condition. Most infections occur when people inhale contaminated dust—often during cleaning or in rodent-infested environments.
Is Hantavirus Contagious Between People?
Most hantaviruses do not spread from person to person. There have been a few rare cases, usually involving close contact, but health experts emphasize that transmission is not common. The World Health Organization (WHO) assesses the global risk as low and continues to monitor developments.
What About Other Travelers?
Travelers can rest easy. Current health guidelines do not recommend canceling trips due to hantavirus. It spreads much less easily than other respiratory viruses, like COVID-19. Plus, with summer coming, it’s a good time to check that routine vaccinations are current to protect against other illnesses you might encounter while traveling.
Watch for These Symptoms
Symptoms of HPS can appear anytime from one to eight weeks after exposure. Initial signs may include fever, muscle aches, and fatigue. Within a few days, symptoms can escalate to shortness of breath, often requiring hospitalization. If you’ve been exposed to deer mice and develop symptoms, contact a healthcare provider immediately and inform them about your potential exposure.
Hantavirus vs. COVID-19
Hantavirus and COVID-19 are very different. Hantavirus is harder to transmit and usually results in limited outbreaks. While the cruise ship incident is concerning, it does not compare to the widespread nature of COVID-19.
What Measures Are Health Agencies Taking?
Authorities like the CDC and WHO are actively addressing the outbreak through investigations and coordinated responses, including patient care and laboratory analyses. These organizations are key players in managing health threats globally.
How Can You Protect Yourself?
If you encounter rodent droppings or nests, take precautions to clean safely:
- Ventilate the area for at least 30 minutes before cleaning.
- Avoid stirring up dust—don’t use vacuum cleaners or brooms.
- Wear gloves and an N95 mask during cleanup.
- Thoroughly wet contaminated areas before cleaning. Use a bleach solution for safety.
- Bag and seal any dirty materials and wash your hands thoroughly afterwards.
Preventing rodent infestations is the best way to avoid hantavirus. Here are some tips:
- Store food in rodent-proof containers.
- Seal gaps in buildings, such as cracks in foundations or around windows.
- Use traps to control rodent populations safely.
For detailed guidance on safe cleaning practices and rodent control, visit the Washington State Department of Health.
