Studies on the growth of Bartonella henselae in the cat flea (Siphonaptera: Pulicidae)

被引:70
作者
Finkelstein, JL [1 ]
Brown, TP
O'Reilly, KL
Wedincamp, J
Foil, LD
机构
[1] Louisiana State Univ, Ctr Agr, Dept Entomol, Baton Rouge, LA 70803 USA
[2] E Georgia Coll, Math Sci Div, Swainsboro, GA 30401 USA
[3] Louisiana State Univ, Sch Vet Med, Dept Pathobiol Sci, Baton Rouge, LA 70803 USA
关键词
Ctenocephalides felis; Bartonella henselae; cat scratch disease; cat fleas; transmission;
D O I
10.1603/0022-2585-39.6.915
中图分类号
Q96 [昆虫学];
学科分类号
摘要
Two out of three pools of cat fleas, Ctenocephalides felis (Bouche), that were fed Bartonella henselae-positive cat blood for 3 d and then bovine blood for 3 d, were polymerase chain reaction (PCR) positive for B. henselae. In a second experiment, three cats were inoculated with a streptomycin-resistant strain of B. henselae. After the cats were inoculated, caged cat fleas were fed on the cats during three different periods, and then pooled and transferred to noninfected recipient cats. In the first trial, the bacteria in the flea feces were below level of detection when the fleas were transferred from the infected cats to the recipient cat. After the fleas had fed on the recipient cat for 6 d, a bacteria level of 4.00 x 10(3) CFU/mg was detected in the flea feces. Subsequently, the bacteria level increased for 4 d and then declined. In another experiment, the bacteria level in the flea feces was 1.80 x 10(3) CFU/ mg at 2 h after collection and 3.33 x 10(2) CFU/mg at 72 h after collection. These data indicated that this strain of B. henselae can persist in flea feces in the environment for at least 3 d, and that B. henselae can multiply in the cat flea.
引用
收藏
页码:915 / 919
页数:5
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