Factors related to transmission of and infection with Schistosoma mansoni in a village in the South-eastern Region of Brazil

Enk, Martin Johannes; Lima, A. Oliveira; Barros, Héliton da Silva; Massara, Crístiano Lara; Coelho, Paulo Marcos Zech; Schall, Virgínia Torres

doi:10.1590/s0074-02762010000400037

Cited by 35 publications

(40 citation statements)

References 16 publications

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“…PCR using urine as a template is easy to collect, sensitive, and also specific which is useful in the identification of Schistosoma mansoni infection in low level and asymptomatic infected individual. This study is in agreement to the previous studies reported 5,32 .…”

Section: Discussionsupporting

confidence: 94%

“…The difference in infection rate is associated with the fact that males in the study area undergo activities such as fishing, swimming and working bare footed on irrigated agricultural farm lands than females. This study is in agreement with the previous study reported 32,33,34,35,36,37,38 and also in contrast the study which reported that both male and female infected with Schistosoma mansoni 39 . Age group of 14-17yrs had the highest positive cases of Schistosoma mansoni infection which is in contrast to the study which reported that age group of 5-9 and 10-14 were infected with Schistosoma mansoni because the study area is small 39 .…”

Section: Discussionsupporting

confidence: 94%

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Detection by Polymerase Chain Reaction of Schistosoma mansoni DNA in Urine of School Age Chidren in Parts of Osun State

2019

JCBSC

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Intestinal Schistosomiasis caused by Schistosoma mansoni is one of the chronic and neglected tropical diseases affecting rural communities. Diagnostic tests play a major role in the identification of Schistosoma mansoni in Nigeria. Schistosoma mansoni is routinely checked by stool microscopy which produces at times false negative result, lacks sensitivity and specificity as low level and asymptomatic infections are also missed. Polymerase chain reaction detection of Schistosoma mansoni from filtered urine is highly sensitive and specific in this study. Stool and urine samples were collected from 248 school children in the study area and were examined for Schistosoma mansoni egg using both direct microscopy and concentration method. The extracted DNA from filter paper prepared from urine and stool were amplified using Schistosoma mansoni Pontes-F and R primers by Polymerase Chain Reaction method. Polymerase chain reaction detection of Schistosoma mansoni using stool as a specimen had the highest prevalence Detection… Oloyede Samuel Bolaji et al.

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Section: Discussionsupporting

confidence: 94%

Section: Discussionsupporting

confidence: 94%

Detection by Polymerase Chain Reaction of Schistosoma mansoni DNA in Urine of School Age Chidren in Parts of Osun State

2019

JCBSC

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“…The prevalence of schistosomiasis infection among the children was high (47.7%) even though the level has reduced relative to that reported by Amankwa et al [6] (68.7% and 67.7% for S. mansoni and S. haematobium respectively). It is important however, to note that the prevalence level detected in the current study could be an underestimation of the actual infection level, as only one sample/slide each of stool and urine per child was used for the estimation [16,17]. Similar high levels of infection have been reported among various age groups (50.6% among school-age children in Zanzibar [11]; 50.5% among infants and preschool children in Niger [18] and 58.1% among preschool children in Nigeria [19]) living in schistosomiasis endemic communities elsewhere in Africa.…”

Section: Discussionmentioning

confidence: 89%

Water Contact Activities and Prevalence of Schistosomiasis Infection among School-age Children in Communities along an Irrigation Scheme in Rural Northern Ghana

Anto¹

2013

J Bacteriol Parasitol

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Of the various trematodes that infect humans, schistosomes remain among the most prevalent, and the various forms of schistosomiasis still pose significant public health problems. The prevalence of schistosomiasis infection among in-school and not-in-school children resident in communities along the Tono irrigation canals in northern Ghana was determined. Stool and urine samples from random representative samples were parasitologically examined using the Kato-Katz and 10 ml urine filtration methods respectively. A total of 920 children (mean age: 11.0 yrs; range: 6-15 yrs; STD Dev: 4.6 yrs), 573 (62.3%) males and 347 (37.7%) females with 473 in-school and 447 not-in-school participated in the study. The prevalence of Schistosoma haematobium infection was 33.2% (305/920) whilst that of S. mansoni was 19.8% (95% CI: 17.3-22.5; 182/920). The overall prevalence of infection (S. haematobium plus S. mansoni) was 47.7% (439/920). Many more males (51.7%; 95% CI: 47.5-55.8) than females (41.2%; 95% CI: 36.0-46.6) were infected. Forty-six (5.0%, 46/920) children were infected with both S. haematobium and S. mansoni. There was no difference in the prevalence of infection (S. haematobium plus S. mansoni) among children in-school (48.4%; 95% CI: 43.8-53.0) and those not-in-school (46.5%; 95% CI: 41.8-51.3). There was a statistically significant difference in prevalence of infection among communities (P=0.0002); with the lowest level of infection in residents of Korania (29.9%; CI: 20.0-41.4) and the highest among those resident in Kajelo (64.9%; CI: 51.1-77.1), with significant differences in levels of water contact activities (χ 2 =6.69; P=0.04). The highest intensity of S. mansoni infection (115.6 epg) was in Bonia where the highest prevalence of blood stained stools was collected (5.5%). Overall, 2.8% (26/920; 95% CI: 1.9-4.2) of stool samples were blood stained, whilst 10% (92/920; 95% CI: 8.2-12.2) of children had haematuria. S. haematobium ova were detected in 98.9% (91/92) of blood stained urine samples. Children infected by S. mansoni were more likely to have blood stained stool (χ 2 =32.7; P<0.0001). The prevalence of schistosomiasis infection in the irrigation project site is high, adding praziquantel to albendazole and ivermectin for distribution during the annual mass drug administration for filariasis and onchocerciasis control will be an effective way of reaching all at risk groups in the Kassena-Nankana district for the control of schistosomiasis.

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“…Em Minas Gerais um trabalho envolvendo diagnóstico em mais de mil participantes, cerca de 11% apresentaram infecção por Schistosoma mansoni, e deste total, a faixa etária com maior proporção foi de 20 a 30 anos (21,1% do dos positivos) (8). .…”

Section: Discussionunclassified

“…As evidencias da maior ocorrência da esquistossomose em homens, foi detalhada por exemplo, em levantamento realizado no estado da Bahia, com 58% de resultados positivos para exames em homens contra 42% em mulheres (9) , e em Minas Gerais 75% em homens e 25% em mulheres (8) .…”

Section: Original Epidemiologiaunclassified

Perfil epidemiológico da esquistossomose mansônica em Minas Gerais

Silva

2020

Inova

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Introdução – A esquistossomose é uma parasitose endêmica em Minas Gerais, sendo o estado responsável pela metade das notificações no Sistema Nacional de Agravos. Objetivos – Determinar o perfil da parasitose em Minas Gerais. Materiais e métodos – A partir de dados de notificações entre os anos de 2007 a 2014, foram feitas as comparações entre as variáveis relacionadas a esquistossomose em Minas Gerais, comparadas a população do estado, e as notificações nos demais estados do Brasil no mesmo período. Resultados - Os dados sobre a esquistossomose em Minas Gerais mostraram um maior número de notificações em adultos, de área urbana. Discussão – Os resultados demonstram que apesar do maior número de notificações ser em área urbana a maior proporção é na área rural, e com menor escolaridade. Conclusão - O indivíduo típico de Minas Gerais com esquistossomose (quando da notificação do primeiro sintoma), mora na região urbana é do sexo masculino, possui entre 20 a 39 anos, seu grau de instrução é de 1ª a 4ª série do ensino fundamental incompleto e quando tratado evolui para a cura.

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Factors related to transmission of and infection with Schistosoma mansoni in a village in the South-eastern Region of Brazil

Abstract: In this transversal study, factors related to infection with and transmission of

Cited by 35 publications

References 16 publications

Detection by Polymerase Chain Reaction of Schistosoma mansoni DNA in Urine of School Age Chidren in Parts of Osun State

Detection by Polymerase Chain Reaction of Schistosoma mansoni DNA in Urine of School Age Chidren in Parts of Osun State

Water Contact Activities and Prevalence of Schistosomiasis Infection among School-age Children in Communities along an Irrigation Scheme in Rural Northern Ghana

Perfil epidemiológico da esquistossomose mansônica em Minas Gerais

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