West Nile virus found in 30 counties so far in 2025. How many people have died?

Four people have died of West Nile virus so far this year in South Dakota, according to the state health department's dashboard .

There had been 74 human cases reported statewide in 2025 as of Sept. 26. South Dakota also reported four deaths from West Nile virus in 2023, when a total of 96 human cases were detected in the state, according to a health department report .

Nationally, 42 states had reported a total of 1,137 human cases of West Nile virus as of Sept. 23, according to the Centers for Disease Control and Prevention .

Related: John Thune says science should guide health decisions after Trump administration's unproven Tylenol claims

Where have cases of West Nile virus been reported in South Dakota?

The health department has reported West Nile cases in 30 South Dakota