An outbreak of hantavirus, specifically the Andes strain, has been confirmed among passengers on a cruise ship. This development is particularly significant because, unlike most hantavirus strains, the Andes strain has the rare ability to be transmitted from person to person, alongside its more common transmission route via rodents. While details regarding the specific cruise ship and its itinerary remain limited, the confirmation of this strain has prompted health advisories for those who may have been exposed.
Hantaviruses are a group of viruses typically carried by rodents, such as mice and rats, and are usually transmitted to humans when they inhale airborne particles from rodent urine, faeces, or saliva. The Andes strain, however, stands out due to documented cases of human-to-human transmission, primarily through close contact with an infected individual's bodily fluids. This makes it a particular concern in environments where people are in close proximity for extended periods, such as on a cruise ship.
Symptoms of hantavirus infection can vary but often begin with flu-like symptoms, including fever, muscle aches, headaches, and dizziness. These can progress rapidly to severe respiratory problems, such as shortness of breath and coughing, which are indicative of Hantavirus Pulmonary Syndrome (HPS). HPS is a severe and potentially fatal respiratory disease. The incubation period can range from one to eight weeks after exposure, making it challenging to trace the initial point of infection.
For UK travellers, understanding the risks and symptoms is crucial, especially when travelling to regions where hantaviruses are endemic, or when on cruises where outbreaks can occur. While hantavirus infections are rare in the UK, Public Health England (PHE) monitors potential imported cases. If individuals develop symptoms consistent with hantavirus after returning from travel, particularly a cruise, they should seek immediate medical attention and inform their GP about their recent travel history.
The NHS advises that early diagnosis and supportive care are vital for managing HPS. There is currently no specific cure or vaccine for hantavirus, so treatment focuses on managing symptoms and supporting respiratory function. Public health authorities are likely to be working with cruise operators to implement measures to prevent further spread and monitor passengers and crew for symptoms.
Anyone concerned about potential exposure or experiencing symptoms should consult their GP or call NHS 111. It is important not to self-diagnose and to seek professional medical advice promptly.
Source: Public Health England (PHE)