Back to today’s briefing

Story perspectives

West Nile Virus Cases Rise, But No New Infections in 2025

7/28/2025

29 3

Summary

Story summary

Since its arrival in Michigan in 1999, West Nile Virus has caused 1,465 human cases by 2024. After a rise from 23 cases in 2023 to 31 in 2024, the state has seen no new cases in 2025. Symptoms range from fever and body aches to severe neurological complications, underscoring the importance of prevention.

1 of 1

Story summary

Since its arrival in Michigan in 1999, West Nile Virus has caused 1,465 human cases by 2024. After a rise from 23 cases in 2023 to 31 in 2024, the state has seen no new cases in 2025. Symptoms range from fever and body aches to severe neurological complications, underscoring the importance of prevention.