Zoonotic diseases are infectious diseases that can pass from insects or animals to people, or from people to animals. Viruses, bacteria, parasites, and fungi are causes of zoonotic diseases. It's estimated that sixty percent of the infectious diseases in people originated in animals. While serious, zoonotic diseases are usually preventable.
West Nile Virus
In 2009, coinciding with state's worst outbreak of West Nile virus, environmental surveillance detected infection in 72 horses, many of which died or were euthanized, one dog, 22 birds, and 364 mosquito samples.
The mosquito species, Culex pipiens and Cx. tarsalis, are principal carriers of West Nile virus. Both species are found across the state.
The majority of canine leptospirosis cases are reported from western Washington. This trend closely follows the pattern of precipitation typical of this region.
Why is zoonotic disease data important?
By monitoring zoonotic disease activity in animals, we can identify when and where there may be an exposure risk for people and animals. We can then target control and prevention responses to minimize the health impacts. While there are many zoonotic diseases, two of them have sufficient data to provide through this data portal.
View the Data
For information or questions related to the Washington Tracking Network, email DOH.WTN@doh.wa.gov.
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