Overview: Parasitic diseases still affect millions of people every year, especially in the tropics, causing considerable morbidity or death. Such infections within livestock are probably an even bigger problem, leading to poorer productivity, condemna tion of infected meat and considerable economic loss. Para sitological research has, however, helped the situation in some cases and the development of novel drugs, vaccines and diagnostics has improved our chances of controlling these diseases. Research into parasitic infections is, therefore, often goal orientated. However, the study of para
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