Abstract In 2018, Heartland disease virus infected 2 persons in Illinois, USA. In 2019, ticks were collected at potential tick bite exposure locations and tested for Heartland and Bourbon viruses. A Heartland virus–positive pool of adult male Amblyomma americanum ticks was found at 2 locations, 439 km apart, suggesting widespread distribution in Illinois.

 

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Citation Tuten HC, Burkhalter KL, Noel KR, Hernandez EJ, Yates S, Wojnowski K, et al. Heartland Virus in Humans and Ticks, Illinois, USA, 2018–2019. Emerg Infect Dis. 2020;26(7):1548-1552. https://dx.doi.org/10.3201/eid2607.200110