Publications by authors named "Mahmoud El-Seify"

Background: Trichuris spp. (whipworms) are soil-transmitted helminths distributed worldwide, parasitizing several mammalian hosts such as ruminants, primates, and rodents. Trichuris spp.

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  • This study investigated the prevalence and identification of a particular parasite species infecting feral cats in Alexandria, Egypt, using both morphological and molecular methods.
  • Out of 100 feral cats examined, 40 were found to be infected, with an average of 2.27 worms per cat, and the species was confirmed through genetic sequencing.
  • The findings emphasize a significant occurrence of this parasite among feral cats in the region, marking the first genetic identification of the species in Egypt, and highlight its public health implications.
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The genus is the second largest within the class Myxosporea, which infects marine and freshwater fish. One hundred specimens were collected alive from a branch of the Nile River in Kafrelsheikh, Egypt. Microscopic and molecular procedures were used to describe how infects the ovaries of .

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  • * The highest infections occurred in summer and spring, with the most common metacercariae identified and adult flukes confirmed in cats and rats through experimental feeding.
  • * Cats showed greater susceptibility and more severe symptoms than rats, indicating the need for control measures and ongoing monitoring of zoonotic parasites in both fish and cats.
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To eliminate schistosomiasis, appropriate diagnostic tests are required to monitor its prevalence and transmission, especially in the settings with low endemicity resulting from the consecutive mass drug administration. Antibodies that react with either crude soluble schistosome egg antigens or soluble worm antigen preparations have been used to monitor infection in low-prevalence regions. However, these detection methods cannot discriminate current and past infections and are cross-reactive with other parasites because both antigens contain numerous proteins and glycans from schistosomes, and standard preparations need maintenance of the life cycle of the schistosome.

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  • * Baladi chickens showed a higher prevalence of mixed infections, primarily with four species of cestodes and three nematodes, with Raillietina tetragona being the most common.
  • * Infection rates were found to be related to the age of the birds, with adults more affected, and seasonal variation indicated higher prevalence in summer compared to winter, highlighting the need for more research on the impact of these parasites on poultry health.
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This study investigates the prevalence of gastrointestinal (GI) helminths among stray cats in Alexandria city, Egypt. Between May 2013 and April 2015, a total of 170 fecal samples were randomly collected from cats and examined parasitologically. GI helminths were found in 58.

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  • A three-year-old child in Minia City, Egypt, was diagnosed with an intestinal mite infection after finding mold mite eggs and adults (Tyrophagus putrescentiae) and Blastocystis sp. trophozoites in his stool samples.
  • The child experienced severe abdominal pain and burning sensations around the anus, while other family members had the same mites in their feces but showed no symptoms.
  • Treatment involved ivermectin, given in three doses every 10 days, which resolved the child’s symptoms, indicating he was also dealing with an asymptomatic blastocystosis.
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A single morphologic type of Sarcocystis cysts found in two out of 43 examined common coots, Fulica atra, is considered to represent a new species for which the name Sarcocystis atraii n. sp. is proposed and its description is provided.

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Toxocara vitulorum is an important intestinal nematode that commonly infects ruminants world-wide, notably in tropical and sub-tropical regions. In Egypt, T. vitulorum has a high prevalence rate in cattle and buffaloes calves.

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Sarcocystis species are among the most common and widespread protozoan parasites of mammals and birds. The current study provides the first record of infection with Sarcocystis species in the common moorhens from Brolos Lake, KafrElsheikh province, Egypt. Morphology of the parasite cysts was described using light and transmission electron microscopy.

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Heterophyiasis is an important food-borne parasitic zoonosis in Egypt, among the inhabitants living around brackish-water lakes especially fishermen, and it is a common human parasite in the Nile Delta. The experiment was done on two laboratory animals (rats and dogs), and the time of sample collection was done periodically at 6, 9, 15, 21, and 28 days post-infection to evaluate different tests required. Whole blood was collected with heparin or ethylenediamine tetra-acetic acid as anticoagulant to help in the hematological studies such as red blood cells count (RBCs), white blood cells count, packed cell volume (PCV), and hemoglobin (Hb).

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