Health officials have confirmed two cases of West Nile virus in southern Oregon.
One person in both Coos and Malheur counties recently tested positive for the virus, Oregon Health Authority officials announced on Tuesday.
Previously a bird in Malheur County and a horse in Klamath County tested positive for the virus.
Health officials said the virus had been found in mosquito populations in Malheur, Jackson and Morrow counties.
The disease is most commonly carried by mosquitos and can cause fever and flu-like symptoms, swelling of the brain and in some extreme cases, death.
With Labor Day approaching, health officials are asking those with outdoor plans this weekend to be extra diligent when it comes to protecting themselves to mosquitos.
State and county health workers have been testing mosquitos and tracking West Nile cases since the late 1990s, when the virus was first detected.
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