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Rodent Droppings Spark Global Hantavirus Fears
9 May
Summary
- Hantavirus is transmitted via aerosolized rodent urine or droppings.
- Deer mice are primary carriers of Hantavirus Pulmonary Syndrome in North America.
- Infections have been monitored among travelers on a South Atlantic cruise.
Hantavirus infections have recently captured global attention, with health authorities closely monitoring cases associated with travelers. Investigations have pinpointed isolated expedition paths taken during a South Atlantic Ocean cruise near Antarctica as potential sources of transmission.
The disease is contracted through inhaling tiny amounts of aerosolized urine or droppings from infected rodents. These viruses can lead to severe complications, including hantavirus pulmonary syndrome and renal failure.
In North America, the deer mouse is recognized as the primary carrier of hantavirus pulmonary syndrome. This rodent, common across western and central North America, gained significant attention after a major outbreak in 1993 that revealed a previously unknown respiratory illness.
Other significant rodent hosts include the white-footed mouse in northeastern North America and the marsh rice rat along the Gulf Coast, which is linked to the Bayou virus. Cotton rats in the southern U.S. are also associated with distinct hantavirus strains, such as the Black Creek Canal virus.
While common house rats typically inhabit urban environments, hantavirus-carrying rodents like deer mice and rice rats are wild species. The risk of infection arises when humans enter contaminated natural or rural environments, particularly when disturbed rodent droppings or urine become airborne.
