ABSTRACT
Background and Aim: Dirofilaria repens is a zoonotic vector-borne parasite of dogs and cats. It is not commonly found in every part of Thailand, except the southern part. This study was conducted to investigate the prevalence of this parasite in Eastern Thailand in 2019.
Materials and Methods: A total of 8003 blood samples were collected from private veterinary clinics and animal hospitals in Eastern Thailand. Blood parasites were examined using buffy coat thin blood smears with Wright-Giemsa staining. D. repens was morphologically identified and confirmed using the acid phosphatase activity technique.
Results: The first case of D. repens was found in March 2019. The prevalence of D. repens from January to December 2019 was 0.44% (35/8003) (95% confidence interval 0.30-0.61).
Conclusion: The prevalence data of D. repens in Eastern Thailand indicate that this parasitic infection should be considered as a zoonotic vector-borne disease. A strategic plan to control zoonotic transmission alongside a preventive program should be emphasized and encouraged among pet owners and veterinarians.
Keywords: Dirofilaria repens, dog, emerging, prevalence, Thailand, zoonosis.
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