The last time cases reached outbreak status in South Dakota was in 2018, when there were a total of 169 cases in the state.

CBS News medical contributor Dr. Celine Gounder joins to discuss the rise in West Nile virus cases, with nearly 50 infections ...

ADAMS COUNTY, Colo. — Health department officials in Adams County said two people have confirmed cases of West Nile Virus.

Adams County health officials said the two human cases likely contracted the virus from mosquitoes sometime in late June as ...