High prevalence of small species in canines of Kerala, South India.

Vet World

School of Applied Animal Production and Biotechnology, College of Veterinary and Animal Sciences, Kerala Veterinary and Animal Sciences University, Mannuthy, Thrissur - 680 651, Kerala, India.

Published: November 2017

Aim: Canine babesiosis is an important vector-borne hemoparasitic disease caused by and , in India. The communication places on record the salient findings of the study directed to detect and characterize the pathogenic isolates of Kerala state.

Materials And Methods: A total of 150 dogs were examined for the presence of hemoparasites by light microscopy as well as by PCR targeting the 18S rRNA gene of . Hematological parameters were also analysed. Phylogenetic tree was constructed based on Tamura kei model adopting ML method.

Results: A sensitive and specific polymerase chain reaction assay was developed with newly designed primer pair BAGI-F/BAGI-R for the amplification of 488 bp fragment of 18S rRNA gene of . Out of the 150 dogs examined, molecular evidence of was recorded in 47.3% animals, while light microscopy detected the infection in 26.67% cases. The phylogenetic analyses revealed that , Kerala, isolate was closest and occurred together with Bareilly isolate. Anemia and thrombocytopenia were the significant hematological alterations in chronic infection.

Conclusion: A high prevalence of natural infection of was detected among the study population. The affected animals showed anaemia and thrombocytopenia. Phylogenetic analysis of this pathogenic isolate from south India revealed the closest similarity with Bareilly isolates.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5732336PMC
http://dx.doi.org/10.14202/vetworld.2017.1319-1323DOI Listing

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