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Accuracy of methods used to determine rabies vaccination coverage in dogs in Tanzania

A. B. Minyoo, M. Steinmetz, A. Czupryna, M. Bigambo, I. Mzimbiri, G. Powell and others

RABIES is considered by the World Health Organisation to be one of the neglected diseases of the developing world, yet, with effective vaccines and a single species reservoir host (the domestic dog), the disease is preventable through mass vaccination of dogs. To be successful, vaccination campaigns must routinely achieve 70 per cent coverage of the dog population. The aim of this study was to use a mass dog vaccination campaign in northern Tanzania to assess the accuracy of household questionnaires and transect surveys in estimating vaccination coverage compared to the ‘gold-standard’ village-wide census technique.

Ten vaccination clinics were held in 10 villages in the Bunda and Serengeti districts between June to July and November to December 2013. After vaccination, all dogs were fitted with a brightly coloured collar and marked with a purple spray. Following completion of the clinics, three parallel transect routes (approximately 3 km long) were mapped, and a vehicle with a recorder and two observers …

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