Abstract
Fifteen apparently healthy Kandari cross-bred cattle aged about 4years were purchased from Rurki, Patiala district of Punjab by a private dairy farmer in Erode, Tamil Nadu. Four animals showed eruptions on the lateral thoracic and dorsal abdominal regions of the body after 15-day period of quarantine. Manual palpation of the eruptions resulted in the emergence of larval stages of dipteran flies, identified by their morphology as Hypoderma from these animals. Molecular identification based on mitochondrial cytochrome oxidase-1 (COX-1) gene confirmed it to be Hypoderma lineatum. Treatment with oral ivermectin did not have any curative effects, with exacerbation of disease being noticed, as more than 500 eruptions subsequently emerged in each animal, which had to be culled. Consequences of long distance migration of host on parasite epidemiology are discussed. Awareness must be created among livestock farmers to prevent their economic loss while purchasing cattle from different parts of the country.
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