Reevaluation of the Role of Blocked Oropsylla hirsuta Prairie Dog Fleas (Siphonaptera: Ceratophyllidae) in Yersinia pestis (Enterobacterales: Enterobacteriaceae) Transmission | Zendy

Adélaïde Miarinjara | Zendy; David A. Eads | Zendy; David M. Bland | Zendy; Marc R. Matchett | Zendy; Dean E. Biggins | Zendy; B. Joseph Hinnebusch | Zendy

Open Access

Reevaluation of the Role of Blocked Oropsylla hirsuta Prairie Dog Fleas (Siphonaptera: Ceratophyllidae) in Yersinia pestis (Enterobacterales: Enterobacteriaceae) Transmission

Author(s) -

Adélaïde Miarinjara,

David A. Eads,

David M. Bland,

Marc R. Matchett,

Dean E. Biggins,

B. Joseph Hinnebusch

Publication year - 2022

Publication title -

journal of medical entomology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.866

H-Index - 99

eISSN - 1938-2928

pISSN - 0022-2585

DOI - 10.1093/jme/tjac021

Subject(s) - flea , yersinia pestis , plague (disease) , biology , transmission (telecommunications) , vector (molecular biology) , virology , yersinia , pathogen , prairie dog , yersiniosis , microbiology and biotechnology , enterobacteriaceae , veterinary medicine , zoology , ecology , virulence , bacteria , escherichia coli , geography , medicine , recombinant dna , genetics , archaeology , engineering , electrical engineering , gene , biochemistry

Prairie dogs in the western United States experience periodic epizootics of plague, caused by the flea-borne bacterial pathogen Yersinia pestis. An early study indicated that Oropsylla hirsuta (Baker), often the most abundant prairie dog flea vector of plague, seldom transmits Y. pestis by the classic blocked flea mechanism. More recently, an alternative early-phase mode of transmission has been proposed as the driving force behind prairie dog epizootics. In this study, using the same flea infection protocol used previously to evaluate early-phase transmission, we assessed the vector competence of O. hirsuta for both modes of transmission. Proventricular blockage was evident during the first two weeks after infection and transmission during this time was at least as efficient as early-phase transmission 2 d after infection. Thus, both modes of transmission likely contribute to plague epizootics in prairie dogs.

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