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170 MEDICAL SCIENCES Professor of Veterinary Parasitology Head Department of Basic Veterinary Sciences School of Veterinary Medicine Tel 868 645 2640 ext. 4239 E-mail PROF. ASOKE BASU Professor Asoke Basu started his research career in 1978 working on different ectoparasites including tsetse flies ticks lice mites and nasal bot flies.Professor Basu also worked with endoparasites mainly gastrointestinal helminths and blood parasites Trypanosoma of animals while working under the Animal Resources Development in India University of Maiduguri Nigeria and Addis Ababa UniversityEthiopia.He joined the FMS-SVMUWI in November 2008. Important Research in The UWI Trinidad is a tropical Caribbean island where small ruminant farms are semi-intensively managed. These tropical conditions support the development and survival of the infective stages of intestinal helminths. As a result local farmers use anthelmintics to control gastrointestinal nematodes regularly. Frequent use of anthelmintics has the potential to select for populations of nema- todes resistant to these chemicals. Prof. Basu and his co- researchers have worked on the anthelmintic susceptibility of parasitic helminths to different drugs detected by Fecal Egg Count Reduction Test in vivo with Egg per Gram recorded at post-treatment. This revealed reduced efficacy of albendazole fenbendazole and levamisol compared to ivermectin on intestinal parasites of sheep. The observations indicated the development of drug-resistance in the parasites against the anthelmintics used in Trinidad for more than three decades. This is the first report of multiple drug resistance in gastrointestinal nematodes of sheep in Trinidad. Ticks blood-sucking obligatory ectoparasites are of immense importance causing anaemia restlessness loss of condition decrease in milk production and tick-paralysis in host animals. They are also considered to be second only to mosquitoes as vectors of human infectious disease in the world. They are also known to transmit numerous arboviruses bacteria and protists. Prof Basu has overviewed the literatures on ticks found on humans and animals in Trinidad and Tobago from 1899 to 2011. Hitherto 896 valid species of ticks have been reported throughout the world but so far only 23 tick species belonging to seven genera have been recorded in Trinidad and Tobago. The growing signifi- cance of ticks in the medical and veterinary field emphasizes the need for further studies on the ecology of ticks and the epidemiol- ogy of tick-borne diseases in the Caribbean region. Platynosomum fastosum is a small hepatic trematode found in the biliary ducts and gall bladder of cats and other mammals. It is commonly found in tropical and subtropical regions. Prof Basu identified and reported the presence of P.fastosum in a cat which has been recorded as the first report from Trinidad and Tobago.He also worked along with Dr R. Charles to review the prevalence location in hosts description history life cycle clinical signs pathology diagnostic methods and treatment of this parasite covering the literatures from 1901 to 2013. Giardia is a widespread parasite associated with gastrointesti- nal disease of humans wildlife livestock and companion animals. Along with Prof. Basu Miguella Mark-Carew a PhD scholar of Cornell University USA studied the zoonotic potential of Giardia duodenalis in companion animals in Trinidad and Tobago. Assem- blages CD and E of G.duodenalis from dog feaces were identified. Puppies were four-times more likely to be infected with G.duode- nalis than adult dogs. Although the prevalence of G. duodenalis is relatively high in Trinidad and Tobago the zoonotic risk of infection in humans is low since neither assemblage A nor B was identified in the study population.This study was the first attempt to evaluate the potential zoonotic risk of G. duodenalis in dogs in Trinidad and Tobago. Currently Prof. Basu along with Dr. Charles is in the process of gleaning base-line data on the prevalence of gastrointestinal parasites of domestic ruminants and canids in Trinidad. These domestic animals are known to be reservoirs of parasite species that can adversely affect humans and other animals.Knowledge of the parasites present in these domestic species will increase the awareness of veterinarians and petlivestock owners in the proper treatmentmanagement of infected animals and thus a healthier animal and human population on the island. Selected Publications George N. K. Persad R. Sagam V.N. Offiah A.A. Adesiyun W. Harewood N. Lambie and A.K. Basu. Efficacy of commonly used anthelmintics First report of multiple drug resistance in gastroin- testinal nematodes of sheep in Trinidad. Veterinary Parasitology 2011183194 197. Basu A.K. M. Basu and A.A. Adesiyun. A review on ticks Acari Ixodoidea Ixodidae Argasidae associated pathogens and diseases of Trinidad and Tobago.Acarologia201252139-50. Mark-Carew M.P. A.A. Adesiyun A.K. Basu K.A. Georges T. Pierre S. Tilitz S.E. Wade and H.O. Mohammed. Characterization of Giardia duodenalis infections in dogs in Trinidad and Tobago. Veterinary Parasitology2013196199-202.