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Published online by Cambridge University Press: 19 September 2011
Only one paper in this Symposium dealt with what might be considered a classical zoonosis, namely that of leishmaniasis in northern Egypt. However, the closely related subject of opportunistic infections of humans by protozoa was also covered by two presentations, which noted the likely increase in the incidence of these types of protozoan diseases with the concomitant increase in the reporting of immunodeficiency diseases. A third factor in the evaluation of potential zoonotic foci is how protozoa cause disease symptoms in different host animals, and this point was addressed in the symposium by reference to the pathogenesis of some coccidia.