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Aversion of the invasive Asian longhorned tick to the white‐footed mouse, the dominant reservoir of tick‐borne pathogens in the U.S.A.
Author(s) -
Ronai I.,
Tufts D. M.,
DiukWasser M. A.
Publication year - 2020
Publication title -
medical and veterinary entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.028
H-Index - 82
eISSN - 1365-2915
pISSN - 0269-283X
DOI - 10.1111/mve.12441
Subject(s) - peromyscus , biology , ixodes scapularis , tick , haemaphysalis longicornis , larva , zoology , lyme disease , ixodes , host (biology) , ixodidae , borrelia burgdorferi , ecology , virology , immunology , antibody
The Asian longhorned tick ( Haemaphysalis longicornis ) was reported for the first time in the U.S.A. in 2017 and has now spread across 12 states. The potential of this invasive tick vector to transmit pathogens will be determined through its association to hosts, such as the white‐footed mouse ( Peromyscus leucopus ), which is the primary reservoir for the causative agent of Lyme disease ( Borrelia burgdorferi ) and other zoonotic pathogens. Larval H. longicornis were placed on P. leucopus ; 65% of the larvae ( n  = 40) moved off the host within a short period of time, and none engorged. By contrast, larval blacklegged ticks ( Ixodes scapularis ) did not move from where they were placed in the ear of the mouse. A laboratory behavioural assay was then conducted to assess the interaction of H. longicornis with the hair of potential mammalian host species in the U.S.A. H. longicornis larvae were significantly less likely to enter the hair zone of P. leucopus and humans compared to the hair of domestic cats, domestic dogs and white‐tailed deer. This study identifies a tick–host interaction behaviour, which can be quantified in a laboratory assay to predict tick–host associations and provides insights into how ticks select a host.

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