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Detection of Anaplasmataceae agents and co-infection with other tick-borne protozoa in dogs and Rhipicephalus sanguineus sensu lato ticks

Low, Van Lun, Prakash, Batah Kunalan, Lim, Yvonne Ai-Lian, Tan, Tiong Kai, Vinnie-Siow, Wei Yin, Sofian-Azirun, Mohd, AbuBakar, Sazaly
Experimental & applied acarology 2018 v.75 no.4 pp. 429-435
Anaplasma platys, Babesia canis subsp. vogeli, Babesia gibsoni, DNA, Ehrlichia canis, Hepatozoon canis, Protozoa, Rhipicephalus sanguineus, acarology, anaplasmosis, dogs, ehrlichiosis, genes, mixed infection, polymerase chain reaction, ribosomal RNA, ticks, Malaysia
Anaplasmosis and ehrlichiosis are of serious health concern worldwide for animals and humans. In the present study, we report the occurrence of Anaplasma platys and Ehrlichia canis in dogs and Rhipicephalus sanguineus sensu lato (s.l.) ticks from Peninsular Malaysia using a nested polymerase chain reaction assay based on amplification of the 16S rRNA gene. Anaplasma platys was detected from dogs and ticks with prevalence rates of 3.3% (8/240) and 2.9% (4/140), respectively. On the other hand, 12.9% (31/240) of the dogs and 0.7% (1/140) of the ticks were tested positive for E. canis. Additionally, co-infections of A. platys and E. canis with Babesia or Hepatozoon protozoa were also noted in this study. Double infection (E. canis + B. gibsoni) was observed in tick, whereas triple infections (E. canis + A. platys + B. vogeli and E. canis + A. platys + H. canis) were found in dogs. This study represents the first evidence of A. platys DNA in R. sanguineus s.l. in Malaysia.