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J Med Entomol ; 59(4): 1484-1487, 2022 07 13.
Article in English | MEDLINE | ID: mdl-35640022

ABSTRACT

Haemaphysalis longicornis Neumann, a vector of various pathogens with medical and veterinary importance, is a recent invasive species in the United States. Like many tick species, discerning H. longicornis from congeners can be a challenge. To overcome the difficulty of morphological identification, a Taqman quantitative real-time PCR based on the internal transcribed spacer gene (ITS2) was developed for quick and accurate identification of H. longicornis with a detection limit of as low as 19.8 copies. We also applied the assay to 76,004 archived ticks and found 37 ticks were H. longicornis. One H. longicornis was submitted from Warren, Somerset County, New Jersey in June 2015, 2 yr earlier than the initial report from the United States. None of these 37 H. longicornis was positive for Anaplasma phagocytophilum, Borrelia burgdorferi sensu lato, B. miyamotoi, B. mayonii, Babesia microti, or Ehrlichia muris-like agent.


Subject(s)
Anaplasma phagocytophilum , Borrelia , Ixodidae , Ticks , Anaplasma phagocytophilum/genetics , Animals , Ixodidae/genetics , Real-Time Polymerase Chain Reaction
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