Prevalência do Cryptosporidium parvum em crianças abaixo de 5 anos, residentes na zona urbana de Campo Grande, MS, Brasil, 1996

Abstract

O presente estudo visou estabelecer a prevalência de Cryptosporidium parvum em crianças abaixo de 5 anos, residentes na zona urbana de Campo Grande, MS, 1996/97, através de exames coprológicos e avaliar epidemiologicamente os casos diagnosticados. Tratou-se de um estudo transversal com inquérito domiciliar, onde foram examinadas 1051 amostras fecais, processadas segundo a técnica de Blagg, utilizando-se a coloração de Ziehl-Neelsen modificada para a pesquisa de oocistos de C. parvum. Concluiu-se que: a prevalência de C. parvum (1,1%) observada não foi estatisticamente significativa; foi relatado diarréia em 58,3% das crianças com diagnóstico positivo, supondo-se associação entre diarréia e a presença do parasita; o C. parvum foi mais freqüente em crianças com idade de 25 a 36 meses (50%), porém sem diferença estatisticamente significativa; o sexo não teve papel diferencial em relação ao parasitismo por C. parvum; entre as 12 crianças com criptosporidiose, 83,3% tiveram contato com animais domésticos (cão e ou gato).

Opportunistic Parasites among Immunosuppressed Children in Minia District, Egypt

“…These data were in agreement with the results obtained by Ribes et al [12] who found that C. parvum produces diarrheal syndromes with profuse, watery diarrhea, and the disease manifestations tend to be more severe and protracted and more common in immunocompromised patients, in whom it can produce extreme weight loss and wasting [12]. However, Oshiro et al [13] found that there was no connection between the presence of C. parvum and diarrhea [13]. …”

Occurrence of enteroparasites in day care centers in Botucatu (São Paulo State, Brazil) with emphasis on Cryptosporidium sp., Giardia duodenalis and Enterobius vermicularis

“…in this study, was the second most frequent parasite among the children (15.05%), with this prevalence being superior to that observed by other authors 2,10,27 , in as much as the rates of the latter are between 1.10% and 11.20%. However, in an anterior study 21 realized in Botucatu, SP, the prevalence of this protozoan was also elevated (38.20%).…”

Intra-familial and extra-familial risk factors associated with Cryptosporidium parvum infection among children hospitalized for diarrhea in Goiânia, Goiás, Brazil.

“…7,23 The reported range of cryptosporidial infection in Brazil has varied from 1.1% to 17.4%. 3,[8][9][10][11] Such prevalences were generated by less sensitive diagnostic tests compared with the direct immunofluorescent assay used in our study, [14][15][16][17] but differences in the age distribution of the study population, combined with differences in exposure to risk factors, likely contribute to the inter-study differences in the observed prevalence of infection among Brazilian children. Our adjusted prevalence of 18.7%, which was based on sensitivity data from a gold standard of immunomagnetic separation in combination with immunofluorescent microscopy, 13 was similar to that observed for urban Zambian children 6 and lower than the 29.6% reported for the State of Puebla, Mexico.…”

“…[8][9][10][11] Several studies have been conducted in urban populations among diarrheic children in Brazil, but the majority of this work did not examine preventable risk factors associated with clinical cryptosporidiosis or based the conclusions on univariate associations that were susceptible to confounding. [8][9][10] A study conducted in children residing within a Brazilian urban slum or "favela" determined that low birth weight and geographic location were risk factors for acquisition of symptomatic infection with Cryptosporidium.…”