[Intestinal parasites in Ethiopic women].
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Animals↗
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Intestinal parasitism in a rural patient population.
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Disease↗
Roentgenographic signs of intestinal parasitic infestation.
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Ascariasis↗
[Occurrence of intestinal parasites and commensal organisms among schoolchildren living in a 'landless farm workers' settlement in Campo Florido, Minas Gerais, State Brazil].
The aim of this study was to verify the occurrence of intestinal parasites and commensal organisms among children attending a school located in a settlement of 'landless farm workers' in Campo Florido, Minas Gerais, Brazil. Coproparasitological analyses performed on 72 school children revealed 59.7% positivity and 4 types of protozoa and 5 types of helminths were identified. It can be concluded that it is necessary to monitor the health conditions of this population.
Adolescent↗
Intestinal parasitic infections in homosexual men at a San Francisco health fair.
In a sample of homosexual men attending a San Francisco Bay Area health fair, there were strikingly higher prevalence rates of intestinal parasitic infections compared with rates in a control group of health plan members who had a routine multiphasic health examination. Physicians treating homosexual men must be aware of the likelihood of such infections, whether or not the patients are symptomatic.
Adult↗
[The intestinal parasite fauna in patients, returned from the tropics, from the Dresden district].
It is reported on the affection with intestinal parasites in 438 persons who returned from the tropics. In these test persons were also established only those species of parasites which were proved in the Dresden inhabitants. However, there were remarkable quantitative differences between the affection of the persons returning from the tropics and the Dresden inhabitants. Thus by laboratory examinations in Dresden in the persons returning from the tropics were established infections with Entamoeba histolytica (7.0%), with Dientamoeba fragilis (17.9%), with Lamblia intestinalis (9.0%) as well as with Trichuris trichiura (3.4%), where as the extensity of affection with the corresponding parasites is for the Dresden inhabitants 1.9%, 4.7%, 5.0%, and 1.6%. It is referred to the fact that all persons who returned from the tropics should parasitologically be examined for an infection with Entamoeba histolytica.
Dientamoeba↗
Zoonotic intestinal parasites of hamadryas baboons Papio hamadryas in the western and northern regions of Saudi Arabia.
Six hundred and thirty-three faecal samples were randomly collected and examined for ova and cysts of intestinal parasites from five groups of hamadryas baboons of different population densities, with different human contact and in different ecological conditions (Al-Baha, Turabah and Al-Taif in south-western and Al-Rihat and Al-Akhal in north-western Saudi Arabia). Nine parasites were recorded (Giardia lamblia, Entamoeba histolytica, Escherichia coli, Balantidium coli, Enterobius sp., Trichuris sp., Hookworm, Hymenolepis nana and Schistosoma mansoni) in 274 samples (43.28%). The prevalence of parasites was high (36.0-58.5%) in areas of mild, cool climatic conditions, where baboons were at high density and had maximum human contact. However, in an area (Al-Akhal) of hot, dry climatic conditions, low baboon density and minimum human contact, the parasites' prevalence was very low (9.5%). The concentration of parasites (ova or cysts per g of faeces) was medium. Post-mortem examination of 24, 20, 19 and 13 baboons from Al-Baha, Al-Taif, Turabah and Al-Rihat revealed most of the parasites recorded in random faecal samples at prevalence rates of 37.5, 30.0, 36.0 and 23.0% respectively. The overall prevalence rate was 32.9%. Most of the parasites recorded in baboons were also recorded in humans in the areas of study.
Adolescent↗
Intestinal parasitic infections in Bekasi district, West Java, Indonesia and a comparison of the infection rates determined by different techniques for fecal examination.
This study was undertaken to determine the current status of intestinal parasitic infections among schoolchildren in West Java, Indonesia, and to compare the infection rates obtained by three different methods of fecal examination. A total of 285 fecal samples were collected from 131 males and 154 females at a junior high school. Samples were brought to the Department of Parasitology, Faculty of Medicine, University of Indonesia, and were examined for parasites by the Kato-Katz thick smear method (K-K). The residual samples were suspended in more than five volumes of 2% potassium dichromate solution and brought to the Department of Parasitology, Kobe University School of Medicine, Japan, where they were examined for parasites by the Army Medical School method (AMS III) and by the Sucrose Centrifugal Flotation method (SFL). The K-K revealed a total of two helminths with a prevalence of 10% (29/285). In contrast, nine species of parasites, 31% (89/285) positive, were obtained by AMS III, while 10 species, 22% (62/285) were found by SFL. Overall, 12 species of parasites were detected by the three methods: four species of nematoda (Trichuris trichiura, Ascaris lumbricoides, hookworm, and Enterobius vermicularis); five species of protozoa (Giardia intestinalis, Entamoeba histolytica-like cyst, E. coli, Cyclospora sp, Blastocystis hominis); two unidentified species of nematode eggs; and one unidentified species of mite egg.
Adolescent↗
Control of intestinal parasitic infection--a pilot project in Lao PDR.
Intestinal helminths are a very common but still rather unrecognized public health problem. An attempt was undertaken to control the three important parasites, ie Ascaris, Trichuris and hookworm. Two villages in Vientiane Province in Lao PDR were selected, one as an intervention and the other as control village. Intervention measures started by providing mass treatment against Ascaris, Trichuris, hookworm and other intestinal parasitic infections in both villages. Health education and other intervention measures were implemented in the intervention village, which significantly influenced the re-infection rates in this village. These achievements were not due to an improvement of the availability of toilets or personal hygiene alone but more to the villagers' improved understanding of the route of the parasitic infections. It was concluded that intervention methods should be directed more towards particular age groups. Particular attention should be paid to control parasitic infections among females.
Adolescent↗
[Diffusion of intestinal parasitic diseases in some Milanese kindergartens].
During the months of October and November 1977, 560 children aged between three and five attending some kindergartens of Milan were studied to evaluate the diffusion of intestinal parasitic infections. Among a first group of 274 children, examination of the stool only with Ritchie's method was positive in 14.96% of subjects. When Scotch tape swab test for enterobiasis was also carried out, the diffusion of parasitic infections resulted higher (54.54% in a second group of 286 cases). These data were correlated to the same parameters (age and sex, place of origin and social status of the family, density of inhabitants, hygienic situation), obtaining almost corresponding values in the two groups. In particular, an increase of the incidence of parasitic infections with advancing age and a higher diffusion among members of immigrated italian families (especially if living in overcrowded houses at low hygienic conditions) were observed.
Age Factors↗
Mucin and Toll-like receptors in host defense against intestinal parasites.
Gastrointestinal mucin is a constituent of luminal barrier function and is the first line of host defense against invading pathogens. Mucin carbohydrates and amino acids, as well as trapped soluble host defense molecules, serve as substrates for colonization and control or deter pathogen invasion to the underlying mucosal epithelial cells. Toll-like receptors on the surface of epithelial cells act as sensors for invading pathogens, and the ensuing host response limits parasite invasion and leads to adaptive immunity. The latest work in the field and the use of parasite model systems to illustrate the delicate host-parasite interaction at the mucosal surface of the gut are discussed here.
Animals↗
[Nitazoxanide vs albendazole against intestinal parasites in a single dose and for three days].
OBJECTIVE: To assess the effectiveness of the usual dose of nitazoxanide administered for three days and as a single dose for massive eradication of intestinal parasites in the pediatric population, compared with single-dose albendazole. MATERIAL AND METHODS: A randomized clinical trial was conducted in three rural communities in central Mexico City between 2001 and 2003 to assess three possible therapy regimes in a study population of 786 children 5 to 11 years of age, 92 of whom had a positive parasitology test result (15.1%). Group 1 included 27 patients treated with 400 mg given as a single dose of albendazole; group 2 included 34 patients whose therapy consisted of a 15 mg/kg/day dose for three consecutive days; patients in group 3 (n=31) were administered a single 1.2 g dose of nitazoxanide. Differences in proportions were assessed using Fisher's exact test. RESULTS: No statistically significant differences were found in the effectiveness of the three treatment regimes: 80.5% with albendazole, compared with the two nitazoxanide alternatives (67.6% and 71%, respectively.A higher prevalence of side effects was observed with nitazoxanide in the three-day regimen (26.5%) and as a single dose (32.2%), compared with a single dose of albendazole (7.4%). CONCLUSIONS: According to the evidence on effectiveness and side effects, the use of nitazoxanide is not justified as a massive prophylactic medication for intestinal parasitosis control alternative in endemic areas. In countries with a high prevalence of intestinal parasitosis primary prevention measures should be the most important strategy, together with public sanitation, drinking water and sewage system availability, water chlorination, and appropriate animal fecal waste disposal, as well as health education.
Administration, Oral↗
Intestinal parasite infection in the Kampuchean refugee population 6 years after resettlement in Canada.
A follow-up prevalence study was done in 1989 of the same Kampuchean refugee population (247 subjects) that had been screened and treated for intestinal parasite infection 6 years earlier. A control group (102 subjects) included Kampuchean refugees who had arrived in Montreal at about the same time. These groups did not differ in age, sex, family size, or number of months spent in refugee camps. Statistically significant prevalence differences were observed in the rescreened group between 1982-1983 (63.7%) and 1989 (21.9%) and between the rescreened group and the control group (39.2%). These differences are largely attributable to the elimination of Ascaris infection and decreases in Giardia and hookworm infections. However, Strongyloides infection decreased only slightly (from 15% to 11%) in the rescreened group, while 12% of the control group was infected. Despite an early screening and treatment program, there remain important health risks in this immigrant population due to long-lived potentially pathogenic parasites.
Adult↗
Pattern of intestinal parasitic infection in preschool children in Riyadh, Saudi Arabia.
A total of 1,167 stool specimens collected from 0.6-6 years old patients attending King Abdel Aziz University Hospital (KAUH) in Riyadh, were examined for intestinal parasites. Of these 243 (20.8%) were positive. Giardia lamblia (13.5) and Enterobius vermicularis (4.2%), were the commonest parasites found. Other parasites present include Ascaris lumbricoides, Entamoeba histolytica and Hymenolepis nana. Abdominal pain (38.6%) and diarrhoea (27.6%) were the most common causes of referral presented among both males and females examined groups. Out of 211 patients positive for different parasites and showing different causes of referral, 45.5% were accompanied with abdominal pain and 22.3% having pruritus ani, while the percentage of patients having diarrhoea and positive for different parasites (9.5%) are less. It has been concluded that diarrhoea is not a major sign of parasitic infestation in 0.6-6 years old age group. Other causes of referral include, loss of appetite, underweight and failure to thrive which are mainly associated with Giardia lamblia infection.
Age Factors↗
[The prevalence of intestinal parasites in four different special daytime nursing homes and day-centers in Antakya.].
In this study, the prevalence of intestinal parasites in 109 students (68 boys, 41 girls) in the 1-6 age group in four different special daytime nursing home and day-centers (Special Anakucaği Day-time Nursing Home, Special Evim Day-centre and Day time Nursing home, Special Doğa Daytime Nursing Home and Special Yaren Daytime Nursing Home) in the Antakya district of Hatay was investigated. For this reason 86 feces and 109 cellophane tape preparations were investigated. Concentration of feces and cellophane tape methods were used for diagnosis. One or more parasites were detected in 18 (20.93%) out of 86 concentrated fecal specimens. Eight (7.40%) Enterobius vermicularis were detected in 109 cellophane tape specimens . The prevalence of parasites in concentrated specimens included 4 (19.04%) Giardia intestinalis, 12 (57.14%) Blastocystis hominis, 4 (19.04%) Entamoeba coli and 1 (4.76 %) Hymenolepis nana.
English Abstract↗
Our experiences with the diagnosis of intestinal parasites in foreign apprentices from the tropics and subtropics.
The authors on an extensive coprologic material with high positivity of intestinal parasites compare the Hein's method of thick smear of stool with concentration methods. They find the Hein's method, despite its simplicity, a suitable method with broad diagnostic scope and high yield of positivity also for thin- capsulated ova of helminths and protozoan cysts (however, the specific diagnosis of the latter needs further methods with staining). They recommend Hein's method as one of the suitable screening methods under field conditions. At the same time, they report on the embedding of slide specimens in SOLAKRYL of Czechoslovak production. The findings are documented on microphotographs.
Czechoslovakia↗
Intestinal parasites of humans in a highland community of Irian Jaya, Indonesia.
An indigenous, highland community in the Oksibil Valley of Irian Jaya, Indonesia, was examined on two occasions to determine the prevalence of intestinal parasites. Overall, 478 subjects from three villages in the study area, about 10% of the available population, were sampled. Using a standard, wet-mount technique, 15 different species of parasites were found. Hookworm was predominant in all age groups, with prevalences of 51%-86%, followed by Ascaris lumbricoides (46%-57%) and Trichuris trichiura (15%-25%). Strongyloides stercoralis was only seen infrequently (< 1%). In general, intestinal protozoa were uncommon. Entamoeba histolytica (14%-20%) and Entamoeba coli (12%-17%) were the most frequent. Sex- and age-specific differences were not dramatic but prevalences and species diversity both increased with age up to 6-15 years, then decreased slightly into adulthood. Rarely were faecal samples free of detectable parasites and some adult subjects had as many as six species. The results are discussed with respect to previous studies in the highlands of New Guinea and the local transmission of soil- and water-borne parasites.
Adolescent↗
Serum mineral levels in children with intestinal parasitic infection.
Parasitic infections are highly prevalent in the general population. A relation between a parasitic infection and absorption of minerals is not an easy task. Serum levels of copper, zinc and magnesium were prospectively measured in 64 children with intestinal parasitic infection. Thirty-nine children with Enterobius vermicularis were treated with pyrantel pamoate and 25 children with Giardia lamblia with tinidazole and metronidazole. Three months after treatment, significant differences in serum copper, zinc and magnesium were seen in patients with E. vermicularis infection, and in serum magnesium levels in patients with G. lamblia. Although the pathogenic mechanism is not clear, these findings could reflect a deficiency related to malabsorption due to mucous affection. Early detection and treatment of intestinal parasitosis could avoid these serum mineral deficiencies.
Adolescent↗