1992
DOI: 10.1590/s0074-02761992000800047
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Abstract: In population surveys in which the Schistosoma mansoni intensity of infection is low, or in localities where the schistosomiasis control program had success, the parasitologic methods lack in sensitivity. Despite of some limitations, the immunological methods are useful to provide valuable information in such field conditions. Thus, the prevalence of schistosomiasis in untreated population can be determined by the detection of IgG or IgM antibodies, as well as the incidence by the IgA antibodies, employing mai… Show more

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Cited by 7 publications
(3 citation statements)
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“…The use of serological screening methods in areas of low infection intensity after repeated rounds of chemotherapy has been advocated repeatedly (Maddison, 1987;Hoshino-Shimizu et al, 1992). Indeed, previous experiences from sero-epidemiological studies in areas of low endemicity highlight the advantages associated with the use of serological methods for surveillance, e.g.…”
Section: Discussionmentioning
confidence: 99%
“…The use of serological screening methods in areas of low infection intensity after repeated rounds of chemotherapy has been advocated repeatedly (Maddison, 1987;Hoshino-Shimizu et al, 1992). Indeed, previous experiences from sero-epidemiological studies in areas of low endemicity highlight the advantages associated with the use of serological methods for surveillance, e.g.…”
Section: Discussionmentioning
confidence: 99%
“…First, and foremost, the low worm burden of most cases in the locality under study indicates the need for more efficient diagnostic methods in order to avoid underestimation of prevalence. Hoshino-Shimizu et al (1992) and Noya et al (2007) recommend serological methods, while Barreto et al (1990) and Rabello et al (1992) have shown that the efficiency of the Kato-Katz method can be improved if a larger number of samples is analysed. Gonçalves et al (2006), working in a low prevalence area, observed a 41% increase in the cases by examining three stool samples instead of one, and a seroprevalence five times higher than parasitological prevalence.…”
Section: Discussionmentioning
confidence: 99%
“…Although sero-positivity does not necessarily indicate the current status of infection, it provides an estimate of the infection pressure irrespective of recent control activities (Steinmann et al, 2007) and the burden of schistosomiasis in the study area. Screening methods have been frequently used in areas of low infection intensity after repeated rounds of chemotherapy (Hillyer and Soler, 1999;Hoshino-Shimizu et al, 1992;Steinmann et al, 2007). Second, even the parasitological test is not perfect.…”
Section: Articlementioning
confidence: 99%