scholarly journals Parasitic Contamination of Commonly Consumed Fresh Leafy Vegetables in Benha, Egypt

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Maysa Ahmad Eraky ◽  
Samia Mostafa Rashed ◽  
Mona El-Sayed Nasr ◽  
Azza Mohammed Salah El-Hamshary ◽  
Amera Salah El-Ghannam

This study evaluated the degree of parasitic contamination of vegetables which are commercialized and consumed fresh in Benha, Egypt. It included 530 vegetables: lettuce, watercress, parsley, green onion, and leek. Vegetables were collected randomly from markets within Benha. Samples were washed in saline, and the resulting washing solution was filtered and centrifuged to concentrate the parasitic stages. Sediments and supernatants were examined by iodine and modified Ziehl-Neelsen stained smears. Intestinal parasites were detected in 157/530 (29.6%) samples.Giardia lambliacysts were the most prevalent parasite (8.8%) followed byEntamoebaspp. cysts (6.8%),Enterobius vermiculariseggs (4.9%), various helminth larvae (3.6%),Hymenolepis nanaeggs (2.8%),Hymenolepis diminutaeggs (2.1%), andAscaris lumbricoideseggs (0.6%). The highest contaminated vegetable was lettuce (45.5%) followed by watercress (41.3%), parsley (34.3%), green onion (16.5%), and leek (10.7%). These results indicate a significant seasonal variation (P<0.05), with highest prevalence in summer (49%) and the lowest in winter (10.8%). These findings provide evidence for the high risk of acquiring parasitic infection from the consumption of raw vegetables in Benha, Egypt. Effective measures are necessary to reduce parasitic contamination of vegetables.

2008 ◽  
Vol 41 (6) ◽  
pp. 581-585 ◽  
Author(s):  
Eleuza Rodrigues Machado ◽  
Dircelina Silva Santos ◽  
Julia Maria Costa-Cruz

The aim of this study was to determine the occurrence of intestinal parasites and commensals among children in four peripheral districts located in the northern, southern, eastern and western sectors of Uberlândia, Minas Gerais, using the Baermann methods as modified by Moraes and Lutz. Out of 160 individuals studied, 93 (58.1% CI: 50.4-65.7) were infected, distributed among the sectors as follows: northern (72.5%), southern (47.5%), eastern (57.5%) and western (55%). The positive findings according to age groups were: 0-5 years (26.9%), 5-10 years (21.2%) and 10-15 years (10%). Male children presented 2.7 times higher risk of infection than females did (OR: 2.7; CI: 1052-7001). The parasites and commensals identified were: Giardia lamblia (27.5%), Entamoeba coli (20.6%), Ascaris lumbricoides (14.4%), Enterobius vermicularis (8.8%), Hymenolepis nana (7.5%), Hymenolepis diminuta (5%), hookworms (3.1%), Trichuris trichiura (2.5%), Endolimax nana (2.5%), Entamoeba hartmanni (2.5%), Strongyloides stercoralis (1.3%), Iodamoeba butschlii (1.3%) and Capillaria hepatica (0.6%). The infection rate in these children was high and showed the need to implement prophylactic education programs in the community.


2007 ◽  
Vol 40 (3) ◽  
pp. 346-348 ◽  
Author(s):  
Filipe Anibal Carvalho-Costa ◽  
Alessandra Queiroga Gonçalves ◽  
Sandra Laranjeira Lassance ◽  
Carla Pontes de Albuquerque ◽  
José Paulo Gagliardi Leite ◽  
...  

The objective of the present study was to estimate the frequency of infection by Cryptosporidium spp and other intestinal parasites in dehydrated children with gastroenteritis who were admitted to a pediatric hospital. Stool examinations from 218 children were performed. Cryptosporidium spp was identified in eighteen out of 193 stool samples (9.3%) subjected to safranin-methylene blue staining. Giardia lamblia was detected in ten out of 213 (4.7%) samples examined via the direct or Ritchie methods. Other parasites identified were Ascaris lumbricoides (4.2%), Blastocystis hominis (1.4%), Entamoeba coli (0.9%), Entamoeba histolytica/Entamoeba dispar (0.5%), Endolimax nana (0.5%), Trichuris trichiura (0.5%) and Enterobius vermicularis (0.5%).


2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Gemechu Ameya ◽  
Zerihun Zerdo ◽  
Mihret Tesfaye ◽  
Chimdo Jabesa ◽  
Abayneh Awaje ◽  
...  

Abstract Background Intestinal parasitic infection is one of the parasitic infections affecting people living in prison. Helminths and intestinal protozoan infections are the most common parasitic infection that may cause serious life-threatening diseases in inmates living in developing countries. This study was aimed to investigate the prevalence and associated factors of intestinal parasitic infections (IPIs) among inmates living in Arba Minch prison, southern Ethiopia. Methods Institutional based cross sectional study was conducted on Arba Minch inmates, southern Ethiopian. Pre-tested semi-structured questionnaire was used to gather the data of socio-demographic characteristics, hygiene status of the prisoners, sanitation condition of the prison, and associated factors for IPIs by face to face interview. Direct wet-mount examination and formol-ether sedimentation techniques were used to examine intestinal parasitic infection from stool specimens. Binary logistic regression analysis was used to see the association between different variables and the IPI. Odds ratio with 95% CI was computed to determine the presence association and strength of the associated factors. Result A total of 320 prisoners were participated in this study. Of these, 154(48.1%) of them were infected with one or more intestinal parasites. Eight different intestinal parasites species were identified and Giardia lamblia was the predominant parasite. Among infected inmates, nearly one out of four of them had multiple parasitic infections dominated by Giardia lamblia and E. histolytica/dispar co-infection. Sleeping in group [AOR = 1.9; 95% CI: (1.0–3.8)], married prisoners [AOR = 1.8; 95% CI: (1.1–2.9)], and hand washing habits after handling soil [AOR = 2.4; 95% CI: (1.0–5.6)] were independently associated with IPI. Conclusion High prevalence of intestinal parasitic infection was detected in Arba Minch inmates, southern Ethiopian. Absence of hand washing, marital status, and way of sleeping were the factors associated with the IPI. Implementation of mass drug administration, education on water, sanitation and hygiene (WASH) and periodic screening of intestinal parasitic infection is very important to reduce the high prevalence IPIs in prison.


2018 ◽  
Vol 16 (2) ◽  
pp. 44-46
Author(s):  
Maya Rai ◽  
Ganesh Prasad Neupane ◽  
Dabal Bahadur Dhami ◽  
Thakur Prasad Paudel

Introduction: The parasites can cause different gastrointestinal disorders which have great impact on life quality. Hearing and speech impaired children are unable to maintain proper sanitation, making them more prone to intestinal parasitic infection. Aim and Objective: To know the prevalence of various parasitic infestations among hearing and speech impaired Children. Materials and Methods: Stool specimen were collected from 104 hearing and speech impaired children who were living in private rehabilitation school of chisapani village of Banke district Nepal for a period of 5 month from December 2017 to April 2018 and direct wet mount was prepared using normal saline (0.9%) and Lugol's iodine (0.5%). The wet mount was observed under microscope for parasites. Results: Among 104 individuals intestinal parasites were seen in 25.96 % of students. Giardia lamblia (37.04%) was the most common parasite followed by Ascaris lumbricoides (18.52%) and Entamoeba histolytica (14.82%). Conclusion: The study shows that although the speech and hearing impaired children are more prone to parasitic infection, the prevalence is same as normal people. Giardia lamblia, Ascaris lumbricoides and Entamoeba histolytica were the common parasites. Prompt diagnosis and treatment of infected children should be undertaken.


2020 ◽  
Vol 11 (2) ◽  
pp. 284
Author(s):  
Hamit Mahamat Alio ◽  
Fombotioh Ndifor ◽  
Samafou Kemba ◽  
Issa Ramat Adam ◽  
Nack Jacques ◽  
...  

In tropical areas gastrointestinal parasitosis are constantly changing in frequency and the large number of asymptomatic carriers continue to be a public health problem. This study was carried out during the last trimester of 2019 in the city of N’Djamena (Chad). This work was designed to take a stock of the overall level of carriage of parasitic infections of the population of the city. Our study sample was made up of 366 individuals whose age varied from 1 to 77 years. Each subject included in this study benefited from parasitological stool analysis using three methods. The method of direct observation in physiological water, the method of concentration in formalin-ether and that of Kato Katz. The results obtained showed that 222 subjects were carriers of at least one species of parasite, or either a global infection rate of 60.66%. Ten species of gastrointestinal parasites were identified of which three species of protozoa: Entamoeba histolytica/dispar (34.70 %), Giardia intestinalis (3.55%), Entamoeba coli (0.55%) and seven species of helminths: Hymenolepis nana (18.85%), Ascaris lumbricoides (9.29%), Taenia saginata (8.20%), Hymenolepis diminuta (2.19%), Schiotosoma mansoni (0.27%), Heterophyes hetrophyses (0.55%) and Enterobius vermicularis (0.27%). In N’Djamena the parasitism of those investigated was mainly (45.63%) monospecific and poly-specific (bi-and tri-specific) in 15.03% of the causes while 39.34% of persons examined were free from all forms of protozoa and helminths. The epidemiology of pathogenic forms was linked to a lack of hygiene especially ignorance of the risk of faecal peril. It is therefore important to strengthen the health education of the population in this city in particular and throughout the country in general.


2020 ◽  
Author(s):  
Sebastian von Huth ◽  
Louise B. Thingholm ◽  
Poul-Erik Kofoed ◽  
Corinna Bang ◽  
Malte C. Rühlemann ◽  
...  

Abstract Background: Intestinal parasitic infections, caused by helminths and protozoa, are globally distributed and major causes of worldwide morbidity. The gut microbiota may modulate parasite virulence and host response upon infection. The complex interplay between parasites and the gut microbiota is poorly understood, partly due to sampling difficulties in remote areas with high parasite prevalence and burden. Results: In a large study of children in Bissau, Guinea-Bissau, we found high prevalence of intestinal parasites, including hookworms, Entamoeba spp. and Giardia lamblia. By high-quality sequencing of the 16S rRNA gene of fecal samples stored on filter paper from a total of 1,204 children, we demonstrate that the bacterial microbiota is more or less unaltered by helminth infections, whereas it is shaped by the presence of both pathogenic and non-pathogenic protozoa, including Entamoeba spp. and Giardia lamblia. Within-sample (alpha) diversity remains largely unaffected, whereas overall community composition (beta diversity) is significantly affected by infection with both nonpathogenic Entamoeba coli (R2=0.0131, P= 0.0001) and Endolimax nana (R2=0.00902, P= 0.0001), and by pathogenic Entamoeba histolytica (R2=0.0164, P= 0.0001) and Giardia lamblia (R2=0.00676, P= 0.0001). Heavy infection load with multiple parasite species induces more pronounced shifts in microbiota community than mild ones. A total of 31 bacterial genera across all four major gut bacterial phyla associates with protozoan infection, including increased abundance of Prevotella, Campylobacter and two Clostridium clades (IV and WIVb), and decreased abundance of Collinsella (associated with irritable bowel syndrome), Lactobacillus, Ruminococcus, Veillonella and one Clostridium clade (XVIII). Further, we demonstrate that filter papers are usable for storage of samples at room temperature in large-scale studies where immediate freezing is not possible with minor alterations of microbiota composition. Conclusion: In the present largest-to-date study, we demonstrate that the fecal bacterial microbiota is shaped by intestinal parasitic infection, with most pronounced associations for protozoan species. Our results provide insights into the interplay between the microbiota and intestinal parasites, which are useful to understand infection outcome and design further studies aimed at optimizing treatment strategies.


2019 ◽  
Vol 10 (4) ◽  
pp. 3665-3668
Author(s):  
Sahira Ayed A. Al-Musawi

The study was conducted to investigate the cysts and eggs of intestinal parasites in drinking water in four models of drinking water for water purification projects in Al-Najaf Al-Ashraf Governorate for the period from 1/10/2017 to 1/10/2018. The results of the examination of river water in four districts in Al-Najaf Al-Ashraf governorate showed the presence of five species of parasites are cysts of  Entamoeba histolytica by 39%, and the eggs of the  Ascaris worm by 12%,  worm Ancylostoma duodenale  by 4%,  Giardia lamblia cysts 40%, and the eggs of  Enterobius vermicularis by 18%. The results of the tap water examination showed that there were five types of intestinal parasites, but at a lower rate than in river water,  Entamoeba histolytica cysts by 16%, eggs of Ascaris by 7%, Ancylostoma duodenale eggs by 2%, Giardia lamblia cysts by 29%, and Enterobius vermicularis by 5% overall.


2015 ◽  
Vol 16 (6) ◽  
pp. 859-870 ◽  
Author(s):  
Antonio Neres Norberg ◽  
Fabiano Guerra-Sanches ◽  
Paulo R. Blanco Moreira-Norberg ◽  
José Tadeu Madeira-Oliveira ◽  
Aluízio Antonio Santa-Helena ◽  
...  

<p><strong>Objetivo </strong>Considerando que más de la mitad de la población mundial está infectada por protozoarios y helmintos intestinales, con alta prevalencia en las zonas más pobres, esta investigación tuvo como objetivo identificar la prevalencia de los parasitismos entre indígenas de la etnia Terena, establecidos en el Estado de Mato Grosso do Sul.</p><p><strong>Metodología </strong>Se examinaron 134 muestras de heces de individuos de la comunidad indígena. Estas se conservaron en solución de Merthiolate-iodo-formol (MIF). Los exámenes de laboratorio fueron realizados por las técnicas de Hoffman, Pons y Janer; Willis y Kinyoun.</p><p><strong>Resultados </strong>Se identificaron infecciones por helmintos nematodos de las especies <em>Ascaris lumbricoides,</em> Ancylostomidae,<em> Enterobius vermicularis, Strongyloides stercoralis, </em>y<em> Trichuris trichiura</em>; cestodos de la especie <em>Hymenolepis nana, </em>y <em>Taenia</em>spp<em>.</em> También por protozoarios de las especies <em>Cryptosporidium </em>spp.<em>, Giardia lamblia, Endolimax nana, Entamoeba coli, </em>y<em> Entamoeba histolytica</em>. De las muestras investigadas, 23,1% fueron negativas; de los 76,9 % parasitados hubo diferencia estadísticamente no significativa para el parasitismo en hombres y mujeres examinados, de unoa 33 años de edad, y sobre parasitismo mono específico, o con simultaneidad de especies. Como diversidad parasitaria fueron encontradas siete especies de helmintos nematodos y cestodos, y cinco de protozoarios Archamoebae, flagelados y enterozoários. </p><p><strong>Conclusiones</strong> Los resultados fueron la base para la orientación e intervención adecuada, revelando la necesidad de la implantación de medidas gubernamentales y socioeducativas para mejorar las condiciones de vida de esta comunidad.</p>


2021 ◽  
Vol 8 (2) ◽  
pp. 44-52
Author(s):  
Luis Alarcón (†) ◽  
Evangelina Terán Ventura

Introducción: La parasitosis intestinal constituye una de las infecciones más comunes a nivel mundial, de mayor prevalencia en países poco desarrollados. El objetivo es comparar la prevalencia de enteroparásitos en niños de Huaricana y Viacha de La Paz, Bolivia. Metodología: Se colectaron muestras de heces de niños de 4 -11 años de los colegios de Huaricana (H) y Viacha (V). Para determinar la presencia de enteroparásitos, se utilizó la técnica modificada de concentración de Willis y Ritchie. Resultados: La prevalencia de enteroparásitos fue de más del 80 % para H y 44 % para V. Las especies de helmintos que fueron encontrados son: Hymenolepis nana (H: 20 %, V: 0 %), Ascaris lumbricoides (H: 4 %, V: 4 %), Enterobius vermicularis (H: 5 %, V: 0 %), Taenia spp. (H: 4 %, V: 0 %), Diphylidium spp. (H:4 %, V:0 %), y entre los protozoos se encontraron Giardia lamblia (H:18 %, V:4 %), Blastocystis hominis (H:22 %, V:6 %), Entamoeba coli (H:51 %, V:28 %), Chilomastix mensnili (H:12 %, V:2 %), Endolimax nana (H:0 %, V:6 %) y Iodamoeba butschili (H: 14 %, V: 2 %). Los enteroparásitos patógenos predominantes en Huaricana fueron Hymenolepis nana 20 % y Giardia lamblia 18 %; y en Viacha 4 % se encontraron Ascaris lumbricoides y Giardia lamblia. Los niños de Huaricana estaban poliparasitados en 20 %, y biparasitados en 25 %, y los niños de Viacha estaban biparasitados en 19 %. Conclusión: Los niños con mayor prevalencia de enteroparásitos pertenecen a Huaricana. Las especies patógenas de enteroparásitos prevalentes en niños de Huaricana fue Hymenolepis nana, Giardia lamblia y de Viacha fue Ascaris lumbricoides y Giardia lamblia. Los niños de Huaricana estaban poliparasitados y los de Viacha estaban biparasitados. Conflicto de intereses Ninguno 


2014 ◽  
Vol 38 (2) ◽  
pp. 19-26
Author(s):  
طالب عبدالله حسين

       تضمنت الدراسة الحالية إجراء مقارنة حول نسب انتشار الطفيليات المعوية في كلا من منطقتي ابو غريب والعامرية خلال الفترة مابين شهر تشرين الأول 2011 لغاية نهاية شهر تموز 2012 اذ تم جمع (2449) عينة براز توزعت مابين (1430) عينة براز من كل من الوافدين والراقدين في مستشفى ابو غريب وكذلك (1019) عينة براز من الوافدين للمركز الصحي في العامرية. فحصت عينات البراز بالطرق المباشرة وغير المباشرة باستخدام المحلول الملحي (Normal Saline) وصبغة اليود (Lugol's Iodine) وطريقة التطويف بكبريتات الخارصين المائية (ZnSo4.7H2O) للتحري عن مدى انتشار الطفيليات المعوية وعلاقة الإصابة بالعمر والجنس وعدد افراد العائلة ونوع المياه المستخدمة للشرب وقد أظهرت نتائج الدراسة وجود فرق معنوي في نسب الإصابة الكلية بالنسبة لمنطقتي ابي غريب والعامرية حيث بلغت نسبة الإصابة الكلية (36.29%) في منطقة ابي غريب و(27.57%) لمنطقة العامرية, حيث تم تشخيص خمسة أنواع من الطفيليات المعوية (الاوالي المعوية والديدان المعوية) وهي كالآتي في منطقة أبو غريب : أميبا الزحار Entamoeba histolytica بنسبة إصابة ( 16.62%),  Giardia lamblia بنسبة إصابة (11.95%),  Entamoeba coli اميبا القولون بنسبة إصابة (2.44%) أما الديدان  Helminthes: الدودة الشريطية القزمة Hymenolepis  nana بنسبة إصابة (2.37%)الدودة الدبوسية Enterobius vermicularis بنسبة إصابة (1.88%)أما في منطقة العامرية :الاوالي المعوية اميبا الزحار Entamoeba histolytica بنسبة اصابة (16.68%),  Giardia lamblia بنسبة اصابة (5.49%), اميبا القولون Entamoeba coli بنسبة اصابة (2.55%). الديدان: الدودة الشريطية القزمة Hymenolepis nana بنسبة اصابة ( 1.76%), الدودة الدبوسية Enterobius vermicularis بنسبة اصابة (1.07%) وتم تسجيل فرق معنوي بين ذكور المنطقتين من ناحية الاصابة بالطفيليات المعوية مع وجود فرق معنوي بين الاشهر.


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