Study of ehrlichiosis in kennel dogs under treatment and prevention during seven months in Dakar (Senegal)
Comparative Immunology, Microbiology and Infectious Diseases(2013)
Abstract
In Dakar kennels where morbidity and mortality attributed to diseases transmitted by ticks were high, we conducted a field study to assess the prevalence of Ehrlichia canis, Anaplasma platys and Babesia spp. infections in two kennels (n=34 dogs) and to study the impact of tick protection. The first day of the study, the E. canis PCR were positive in 18 dogs (53%). A. platys was found in one dog and all dogs were negative for Babesia spp. After one month of doxycycline treatment, the number of PCR positive dogs decreased significantly to 2 (5.9%). During seven months, all dogs were treated monthly topically with a novel combination (Certifect®, Merial) delivering at least 6.7mg fipronil/kg body weight, 8.0mg amitraz/kg and 6mg (S)-methoprene/kg. The number of PCR positive dogs remained stable all over the seven months, with 4 dogs being positive at Day 90 and 2 at Day 210. The combination of treatment and monthly prevention had a significant effect in the two kennels. All dogs remained healthy, which was not the case in previous years.
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Key words
Dog,Ehrlichia canis,Anaplasma platys,Senegal,Doxycycline,PCR,Serology,Fipronil,Amitraz,(S)-methoprene
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