During 2018, Heartland virus RNA was detected in an Amblyomma americanum tick removed from a resident of Suffolk County, New York, USA. The person showed seroconversion. Tick surveillance and white-tailed deer (Odocoileus virginianus) serosurveys showed widespread distribution in Suffolk County, emphasizing a need for disease surveillance anywhere A. americanum ticks are established or emerging.
Keywords: Amblyomma americanum; HRTV; Heartland virus; New York; Suffolk County; United States; arboviruses; lone star tick; surveillance; ticks; transmission; vector-borne infections; viruses; white-tailed deer; zoonoses.