Parasitiosis in handicapped children in an Egyptian blind asylum

Examination of visually handicapped children and their serving staff revealed in a descending order Enterobius vermicularis, Giardia lamblia, Entamoeba histolytica, Hymenolepis nana, Ascaris lumbricoides, Cryptospodium parvum, Tricocephalus trichura and Strongyloides stercoralis. Head lice were encountered. But, neither blood parasites nor protozoan infective agent in water for human consumption

Dot-ELISA copro-antigen and direct stool examination in diagnosis of giardiasis patients

A total of 200 cases aged 10-30 years complaining of symptoms suggestive of giardiasis in addition to thirty cross matched normal individuals as a control group was examined clinically and laboratory using stool examination and detection of Giardia coproantigen in faeces by the Dot-ELISA. Stool examination detected 39 cases [19.5%] while Dot-ELISA detected 49 cases [24.5%] with 100% sensitivity and 93.8% specificity. The common clinical findings were diarrhea, abdominal cramps, anorexia, underweight, pallor and manifestations of vitamin deficiency

Ultrastructural studies of the surface of hymenolepis nana by scanning and transmission electron microscopy

Scanning electron microscopy of the surface of Hymenolepis nana indicated that dense populations of microtriches occur on scolex proper, suckers and strobila, with an average density of 20/um[2]. The excellent preservation of microtriches proves the efficacy of the critical point drying method for preparing cestodes for study of SEM. The cytological structure of the tegument of H. nana corresponds general to that of other tapeworms

mechanism of acquired immunity in experimental giardiasis

Giardia-spontaneously cured mice were rendered resistant to challenge infection. This was documented by the decreased cyst excretion rate comparable to the control ones. Endoxan and irradiation treatment caused a breakdown in both humoral and cellular immunity. Immune-depressed mice were more susceptible to Giardia infection, thus proving the active role of antibodies and cell-mediated immune response in giardiasis

Cheatotaxic characters of an Egyptian strain of schistosoma mansoni cercariae

The pattern of argentophilic sensory papillae of an Egyptian human strain of Schistosoma mansoni cercariae was studied by light microscopy and their cheatotaxic characters were described

Immunogenic response to hymenolepiasis Nana

The relation between the level of serum immunoglobulins, percentage of T-lymphocytes and egg counts was studied in patients infected with Hymenolepis nana. A significant increase in the level of IgG, IgM and IgE was noticed. An inverse relationship between the concentration of IgG and egg counts on one side and a direct association between the percentage of T-lymphocytes and IgG level on the other side were proved. The significance of such observations was discussed

Natural entamoeba histolytica infection in domestic animals and rodents in Dakahlia Governorate, Egypt

The prevalence of Entamoeba histolytica was estimated in 112 cows, 85 buffaloes, 57 sheep, 46 goats, 148 dogs and 224 rats. Natural infection was detected in one dog and 43 rats. The relatively high prevalence of amoebic infection in Rattus norvegicus [31.94%] suggests its possible epidemiological role in the dissimination of amoebiasis in Dakahlia Governorate

effect of levamisole on the filarial skin test

The effect of levamisole therapy on the filarial skin test using Acanthocheilonema evansi adult antigen was studied in microfilaraemic patients from an endemic area. Following a single dose regiemen of levamisole [2.5 mg/Kg] the skin test was performed after one and three months. It was observed that the skin reactions were exagerated. The results were discussed

Filter paper blood specimens in the serological diagnosis of schistosomiasis

Serum and filter paper blood specimens collected from individuals infected with Schistosoma mansoni, Schistosoma haematobium or with both species were tried in the circumoval precipition test and the cercarien-Hullen reaction. Sera obtained by venipuncture were more reliable

use of delipidized larval antigen in the diagnosis of ancylostomiasis by intradermal tests

In comparison with stool examination, the skin test detected 87.09% of infections. The antigen possesses a high degree of specificity [90.19%]. No difference was found between both sexes concerning the percentage of positive reactors. A linear relationship between the mean wheal area and worm-burden was proved

Treatment of rodent malaria with levamisole

Levamisole, an immuno-modulator drug was tried in the treatment of Plasmodium berghei berghei in albino mice. Treated animals showed a delay in the appearance of parasites. Parasitaemia was not as fulminating as in the control untreated group. While infection in the control mice was lethal to all, yet there was a number of survivals, though few, in the treated group. The drug can be used as an adjuvant and not a substitute to the classical anti-plasmoidal chemo-therapeutics

Preliminary observations on human vaginal and intestinal trichomoniasis

The relationship between the size of T. vaginalis and the clinical signs in infected female patients was studied. Small-sized T. vaginalis was associated with acute signs, whereas large-sized T. vaginalis was associated with chronic signs. The relationship between T. homonis and T. vaginalis is a mere association. Each species has its own specific habitat

Malarial antibodies and parasitaemias in immunosuppressed mice

Parasitaemia and antibody levels were followed in mice receiving cyclophosphamide [an immunosuppressive agent] and in a control group of mice, after the intraperitoneal inoculation of a standard dose of Plasmodium berghei yoelii. The drug caused impairment in both recovery from infection and antibody synthesis. In both groups of animals significant increase in antibody levels coincided with a decrease in Parasitaemia was noticed, suggesting that the humoral factor is essential in the recovery process

Intestinal protozoa of rodents from Dakahlia Governorate, Egypt

In a survey on protozoa in the intestine of rats from the Dakahlia Governor ate, Giardia Sp. were the most predominent [32.2%] followed by Entamoeba muris [19.2%]. Eimeria Sp.,E. histolytica and Trichomonas muris have a more or less the same incidence. Chilomastix muris was a rare protozoon [3.2%]. The epidemiological significance of the results was discussed