الفهرس 
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Abstract
Cats are widespread animals everywhere, stray one became numerous in the streets of Egypt, The need to a lot of information is required about the parasites and diseases they harbor, and the threat that may pose to humans, pets and farm animals.
This study was conducted from Jan. 2018 to Jan. 2019 on 100 cats, were trapped from different regions in Alexandria city. In the laboratory; humanely killing to the cats, viscera and GIT examined for helminthes.
The overall prevalence of gastrointestinal parasites infection was 80%. The established parasites in postmortem examination consisted of 12 species of trematodes; Heterophids spp., were 20% and included on Heterophyes heterophyes with 10%, Heterophyes dispar was 5%, Heterophyes equalis was 3%, Haplorchis yokogawai was 5%, Haplorchis pumillo was 5%, Haplorchis taichu was 4%, pygidiopsis geneta was 5%, Stellantchasmus falcatus 3%, Dexiogonimus ciureanus 1%, Mesostephanus spp. was 6%, Prohistomum spp. was 2%, Echinochasmus perfoliatus was 4%,. 3 species of cestodes; Dipylidium caninum was 60%, Joyeuxiella spp. was 4%, Diplopylidium spp. was 4%. 3 species of nematodes; Toxocara cati was 40%, Toxascaris leonine was 7%, Physaloptera spp 1%.
This study proved that cats act as reservoirs for many parasites of zoonotic importance e.g. intestinal trematodiasis. Also the current study reports a high prevalence of EMC in edible Tilapia fish in Alexandria, Egypt. Moreover, half of these EMC were for Heterophyes spp.
Dipylidium caninum mainly in children and Toxocara cati have zoonotic importance which causes visceral larval migrans that pay the attention to other deep studies like molecular and biological studies here.