Ascaris lumbricoides infection in pre-school children from Chiriqui Province, Panama

Parasitology ◽  
1987 ◽  
Vol 95 (3) ◽  
pp. 615-622 ◽  
Author(s):  
Celia V. Holland ◽  
D. W. T. Crompton ◽  
D. L. Taren ◽  
M. C. Nesheim ◽  
Diva Sanjur ◽  
...  

SUMMARYAn epidemiological survey of intestinal parasitic infections was conducted in a sample of 203 children aged 3–5 years from a semi-urban and a rural community in Chiriqui, Panama, in 1983–4. On the basis of stool examinations, the prevalences of Ascaris lumbricoides, Trichuris trichiura, hookworm, Giardia intestinalis, Entamoeba spp. and Strongyloides stercoralis were found to be 27, 34, 14, 15, 5 and 4% respectively. The results from children from the two communities were compared. Polyparasitism occurred significantly more often in rural than semi-urban children. Following anthelmintic treatment with levamisole, the numbers of A. lumbricoides passed/child were recorded and the frequency distribution of the parasite was observed to be highly aggregated with a variance to mean ratio of 10·2. For A. lumbricoides, relationships between worm burden, worm biomass and egg production were investigated. In the data analysis, an attempt was made to explore the influence of numbers of male worms on egg production. The results are compared with those obtained during other recent studies on the epidemiology of A. lumbricoides infection in other countries.

Parasitology ◽  
1989 ◽  
Vol 99 (2) ◽  
pp. 275-285 ◽  
Author(s):  
Celia V. Holland ◽  
S. O. Asaolu ◽  
D. W. T. Crompton ◽  
R. C. Stoddart ◽  
R. Macdonald ◽  
...  

SummaryAn epidemiological survey of intestinal helminthiases was conducted on 766 primary school children aged 5–16 years from Ile-Ife, Nigeria. On the basis of stool examinations, the prevalence of Ascaris lumbricoides, Trichuris trichiura, hookworm and Strongyloides stercoralis was 88·5, 84·5, 33·1 and 3% respectively. Intensity of infection was measured indirectly by egg counts for each species of helminth and also by counting worms passed after chemotherapy in the case of A. lumbricoides. The influence of host age and sex on infection levels was assessed. Relationships between the intensities of A. lumbricoides, T. trichiura and hookworm in individual children were identified. After anthelmintic treatment with levamisole, the frequency distribution of A. lumbricoides per host and the relationship between parasite fecundity and worm burden were investigated.


2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Bankole H. Oladeinde ◽  
Richard Omoregie ◽  
Mitsan Olley ◽  
Ahamdi J. Anunibe ◽  
Ikponmwosa Odia

Intestinal parasitic infections are associated with morbidity and mortality worldwide. Data on prevalence of intestinal parasitic infection is sparse in rural Nigeria. Against this background, this study aimed at determining the prevalence of intestinal parasitic infections within a four year period in the rural community of Okada, Edo State, Nigeria. Fecal samples obtained from 1528 patients (consisting of 740 males and 788 females) presenting with signs and symptoms of gastroenteritis at the Igbinedion University Teaching Hospital, Okada were examined for presence of ova, cyst and trophozoites of parasites using standard methods. Patient’s age ranged from 6 months to 73 years. Study was conducted between 2007 and 2010. The prevalence of intestinal parasitic infections increased significantly (P=0.003) from 14.7% in 2007 to 22.5% in 2010. In the study period, gender did not affect the prevalence of intestinal parasitic infection (P&gt;0.05). Patients within &lt;1-10 years had significantly higher prevalence of intestinal parasitic infection. <em>Ascaris lumbricoides</em> was the most predominant parasitic agent, while <em>Schistosoma japonicum</em> was the least prevalent. With respect to parasite, males were observed to have consistently higher prevalence of <em>Entamoeba histolytica</em> infection. The prevalence of intestinal parasitic infection was observed to significantly increase from 2007 to 2010. Age was a risk factor for acquiring intestinal parasitic infection. <em>Ascaris lumbricoides</em> was the most predominant parasitic agent in all years of study. Control and prevention measures are advocated.


Author(s):  
Arcelia González-García ◽  
Claudia Hernández-Salas ◽  
Rosa Maria Martínez-Ortiz ◽  
Lilia González-Martínez

Introduction: Nowadays in our state, intestinal parasitic diseases are still endemic, with a greater frequency in rural and mountainous urban areas. After the years have elapsed since the last national survey, it was necessary to carry out a new survey to know the prevalence rates of intestinal parasitosis and to compare the results obtained between both studies. Such knowledge would be of great value in developing health strategies and designing intestinal parasitic infection control programs. Objective: to determine the current prevalence rates of intestinal parasites, to compare the results with those of the survey obtained. Methods: a random cross-sectional descriptive study was carried out during the months of December 2018 to March 2019 in a random sample of both sexes from the population of urban communities and the province of Zacatecas, Zac. Each one had a stool sample collected that was analyzed by the direct examination method, the Willis concentration technique, and the Kato-Katz examination; A questionnaire was also applied to them. Results: when comparing the results of the national and state surveys of intestinal parasitic infections carried out in 2009 and 2018, it was found that, in general, infections by parasites decreased, both helminths and pathogenic protozoa, although those infected with commensals increased their frequency in that of 2019. There was also a decrease in the frequency of infections by all species of soil-transmitted helminths, Trichuris trichiura, Ascaris lumbricoides, ancylostomideos, and Strongyloides stercoralis, as well as by the pathogenic protozoa Giardia lamblia and Entamoeba histolitica. Conclusions: when comparing the results of national and state surveys of intestinal parasite infections carried out in 2018 and 2019, it was found that in general the frequencies of infections with intestinal parasites decreased. The finding in both studies of a higher frequency of infection with parasites or commensals in the group aged 5 to 14 years (school age), supports the recommendation to place emphasis on control programs for intestinal parasites in this age group.


1990 ◽  
Vol 32 (6) ◽  
pp. 428-435 ◽  
Author(s):  
José Felipe Gonçalves ◽  
Masanobu Tanabe ◽  
Francisco de Paula de Melo Medeiros ◽  
Fernando José Gonçalves ◽  
Ivanize da Silva Aca ◽  
...  

Parasitological examinations were carried out during July to December, 1989, on 485 inhabitants of four villages in São Lourenço da Mata, 25 km northwest of Recife, Pernambuco, Brazil. Approximately 99.6% of the inhabitants were infected with at least one species of intestinal parasites. A high prevalence of Schistosoma mansoni (82.1%), hookworm (80.2%) Trichuris trichiura (69.9%), Ascaris lumbricoides (61.9%) and Entamoeba coli (36.7%) infections were demonstrated. Test tube cultivation revealed that the most common species of hookworm in this region was Necator americanus (88.4%), and also that the prevalence of Strongyloides stercoralis was 5.8%. Three hundred and thirty-four sera were serologically examined for amoebiasis by the gel diffusion precipitation test (GDP) and enzyme-linked immunosorbent assay (ELISA). No positive reaction was observed in all sera as examined by GDP, while 24 sera were positive by ELISA.


JPGN Reports ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. e082
Author(s):  
Isabelle Mekone Nkwele ◽  
Ritha Mbono ◽  
Grace Bissohong ◽  
Yolande Djike Puepi ◽  
Britha Nlende Mengalle ◽  
...  

2019 ◽  
Vol 13 (10) ◽  
pp. 933-938
Author(s):  
Md. Shabab Hossain ◽  
Subhasish Das ◽  
Md. Amran Gazi ◽  
Mustafa Mahfuz ◽  
Tahmeed Ahmed

Introduction: Although parasitic infections lead to extracorporeal iron loss resulting in iron deficiency anaemia (IDA), data associating IDA with parasitic infections in the first two years of life are limited. We sought to evaluate the prevalence and severity of anaemia and IDA during this period and to investigate the association between intestinal parasitic infections and IDA. Methodology: Data was collected under MAL-ED study protocol in Bauniabadh slum of Dhaka, Bangladesh. The presence of parasites in stool was detected using wet preparation microscopy at 7, 15, and 24 months. Anaemia was defined as serum haemoglobin < 11 g/dL and IDA was defined by serum haemoglobin < 11 g/dL, serum ferritin < 12 g/L and soluble transferrin receptor > 8.3 mg/L. Logistic regression was done to quantify the relation between stool parasite and IDA separately on samples collected at 7, 15 and 24 months. Results: 265 children were enrolled after birth and samples were collected at 7, 15 and 24 months. Anaemia was detected at 7, 15 and 24 months in 117 (48.8%), 106 (44.2%) and 67 (27.9%) cases whereas IDA was found in 15 (6.3%), 47 (19.6%) and 39 (16.3%) cases, respectively. Iron deficiency anaemia at 24 months was significantly associated with Ascaris lumbricoides infection (OR 3.76; 95 % CI, 1.08-13.11). Conclusions: The prevalence of anaemia and IDA in slum dwelling children of Dhaka is high and Ascaris lumbricoides infection was found to have a strong association with IDA at 24 months of age.


2019 ◽  
Vol 47 (1) ◽  
pp. 129-136
Author(s):  
Md Aminul Islam Bhuiyan ◽  
Zannatun Nahar Jhinu ◽  
Jaliluzzaman ◽  
Mandira Mukutmoni

A total of 200 stool samples were examined and five species of intestinal parasites were identified. Two of them were protozoans (Entamoeba histolytica and Giardia intestinalis) and the rest of which three species were nematode parasites (Ascaris lumbricoides, Trichuris trichiura and Strongyloids stercoralis). The overall prevalence of parasitic infection was 50%. Individually the prevalence of Ascaris lumbricoides, Entamoeba histolytica, Giardia intestinalis, Trichuris trichiura and Strongyloids stercoralis was 25%, 13%, 6%, 3.5% and 2.5%, respectively. Patients of different age and sex had a variable degree of infection. Children aged under ten years showed the highest prevalence (73.97%) compared to other groups. Accordingly, male patients were found slightly more susceptible to the infection (50.38%) compared to the female (49.29%). People belonging to different occupation and educational qualification had various degree of infection. As expected patients who had no education and poor monthly income, showed the highest prevalence of infection, 77.77% and 90%, respectively. Personal hygiene practices of the patients had much influence on the parasitic prevalence and rate of infection. Respectively 58.82%, 91.42%, 80% and 63.55% prevalence were found among the patients who used to drink unsafe water, wash hands without soap, stay barefooted most of the time and do not trim their nails regularly. The present study supposed to reveal that socioeconomic conditions and behavioral factors may influence the prevalence of parasitic infections. Bangladesh J. Zool. 47(1): 129-136, 2019


2018 ◽  
Author(s):  
Renato A. Errea ◽  
George Vasquez-Rios ◽  
María L. Calderon ◽  
Diego Siu ◽  
Kevin R. Duque ◽  
...  

ABSTRACTBackgroundChildren in the Peruvian Amazon basin are at risk of soil-transmitted helminthiases (STH). The aim of this study was to determine the prevalence of STH (Ascaris lumbricoides, Trichuris trichiura, hookworm and Strongyloides stercoralis) in children from a rural community in the Peruvian Amazon and associated clinical, maternal, sanitation and hygiene factors associated. The community had an active school-based deworming program with mebendazole.MethodsA cross-sectional study was carried out in children aged 2–14 years in Iquitos, Peru; by parasitological analysis of their stools through five methods: direct smear examination, Kato-Katz, spontaneous sedimentation in tube, Baermann method modified by Lumbreras and agar plate culture. Mothers of the participating children were also invited to participate in the study. A questionnaire was completed by each participant to collect demographic and epidemiological information of interest.ResultsAmong 124 children, 25.8% (32/124) had one or more STH. Prevalence of A. lumbricoides was 16.1% (20/124); S. stercoralis, 10.5% (13/124); hookworm, 1.6% (2/124) and T. trichiura, 1.6% (2/124). STH in mothers was higher in children with any STH than in children without any STH (36.4% vs 14.1%, p<0.02). Prevalence of the common STH (A. lumbricoides, T. trichiura and hookworm) was higher in children aged 2–5 than in older children (31.6% vs 12.8%; p=0.01). Several hygiene and sanitation deficits were identified; of which walking barefoot was significantly associated with STH infection (OR= 3.28; 95% CI= 1.11–12.07).ConclusionsSTH are highly prevalent in children in this community; A. lumbricoides and S. stercoralis infections were the most frequent. Further studies should aim to understand the persistent high prevalence of common STH in endemic areas where massive drug administration is practiced, and to determine the appropriateness of controlling STH in mothers and S. stercoralis infection. Walking barefoot and other hygiene and sanitation conditions need to be addressed in this community.AUTHOR SUMMARYFew studies assessing soil-transmitted helminth infections in children and their risk factors have yet been conducted in the Peruvian Amazon. Even fewer reports exist from areas where mass drug administration programs have been initiated. In this study we provide insight to the frequency of soil-transmitted helminths in a setting with an ongoing school-based deworming program.Besides the most common soil-transmitted helminths (Ascaris lumbricoides, Trichuris trichiura and hookworm), we assessed the prevalence of Strongyloides stercoralis. Excluding the latter from intestinal helminths studies have often underestimate its frequency and impact in children.We also surveyed for helminth infection in the mothers of the participating children as infection in caregivers could theoretically be associated with infection in children as they both may share same environmental and behavioral factors associated with STH infections. To our knowledge, this is the first Peruvian study assessing children and mother infection together.In addition, our results highlight the suboptimal hygiene and sanitation conditions in which people from this rural community live. It likely represents the situation of other rural Amazonian communities in Peru. Public efforts are needed to provide these populations with dignified living conditions and to follow the equity global health agenda.


2019 ◽  
Vol 75 (01) ◽  
pp. 6153-2019
Author(s):  
JUSTYNA BARTOSIK ◽  
JACEK ŁOJEK ◽  
MARTA PUCHAŁA ◽  
JUSTYNA KACZYK ◽  
PAWEŁ GÓRSKI ◽  
...  

The aim of the study was to analyse canine and feline infections with intestinal parasites basing on routine coproscopic tests. In total 5,809 results were analysed. Infections with Giardia intestinalis (6.93% – in dogs, 4.56% – in cats) and Toxocara spp. (4.07% – in dogs, 5.42% – in cats) were the most commonly noted. The majority of intestinal parasitic infections were identified more frequently in younger animals (under 1 year of age) as compared to older ones. This study showed the increase in the prevalence of coccidia (from 1% to 2.53%) and whipworms (from 2.6% to 3.07%) in dogs and a decrease in roundworm and hookworm related diseases in comparison to previous reports (years 1974-2002). The results showed changes in infection prevalence of both protozoan species (G. intestinalis and Cystoisospora spp.) both in dogs and cats, which suggests that climate conditions had an influence on the infection prevalence of the mentioned species. Moreover, the age of animals had an influence on the infection prevalence of intestinal parasites in dogs. However, there was no influence of both dogs’ and cats’ sex on the average infection prevalence of investigated parasites.


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