Transovarial Transmission of Heartland Virus by Invasive Asian Longhorned Ticks under Laboratory Conditions

Abstract

T he Asian longhorned tick, Haemaphysalis longicor- nis, is an ixodid tick native to Southeast Asia that was reported in the United States during 2017 and has since been found in 17 states (1,2). In its native range, this tick is the main vector of Dabie bandavirus (3) (formerly severe fever with thrombocytopenia syndrome virus), the agent that causes severe human illnesses characterized by high fever, thrombocytopenia, leukopenia, and multiorgan dysfunction (4).

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