Parasitic infections in villagers from three districts of the Brazilian Amazon

Eve, Evaldice; Ferraz, Eduardo de Medeiros; Thatcher, Vernon E.

doi:10.1080/00034983.1998.11813264

Cited by 6 publications

(7 citation statements)

References 19 publications

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“…The results on prevalence of infection and of cumulative infection corroborate data found in the literature with respect to the three helminths, under no-treatment conditions 10 , as well as under treatment 1 . Therefore, infection by T. trichiura and hookworms were kept below pre-treatment levels, whereas infection by A. lumbricoides returned to the initial level within 11 months.…”

Section: Discussionsupporting

confidence: 87%

Impact of antihelminthic treatment on infection by Ascaris lumbricoides, Trichuris trichiura and hookworms in Covas, a rural community of Pernambuco, Brazil

Zani

Favre

Pieri

et al. 2004

Rev. Inst. Med. trop. S. Paulo

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This work aims to evaluate the impact of drug treatment on infection by Ascaris lumbricoides (Al), Trichuris trichiura (Tt) and hookworms (Hook) in a rural community from the sugar-cane zone of Pernambuco, Brazil. Four parasitological surveys were carried out from March 2001 to March 2002. Individual diagnosis was based on eight slides (four by the Kato-Katz method and four by the Hoffman method) per survey. Infected subjects were assigned to two groups for treatment with either albendazole (n = 62) or mebendazole (n = 57). Prevalence of infection fell significantly (p < 0.05) one month after treatment: Al (from 47.7% to 6.6%); Tt (from 45.7% to 31.8%) and Hook (from 47.7% to 24.5%). One year after treatment, infections by Tt and Hook remained significantly below pre-control levels. A substantial decrease in single-infection cases and multiple infections was found. Egg-negative rate was significant for Al (94.0%), Hook (68.3%) but not for Tt (45.5%), and did not differ significantly between subjects treated with mebendazole or albendazole. Egg counts fell significantly in the individuals remaining positive for Tt. It is recommended that antihelminthic treatment should be selective and given at yearly intervals preferably with albendazole, due to its cost-effectiveness.

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Section: Discussionsupporting

confidence: 87%

Impact of antihelminthic treatment on infection by Ascaris lumbricoides, Trichuris trichiura and hookworms in Covas, a rural community of Pernambuco, Brazil

Zani

Favre

Pieri

et al. 2004

Rev. Inst. Med. trop. S. Paulo

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“…Intestinal parasitism seems to remain highly prevalent, in contrast, in more remote Amazonian communities, with little access to health care and medications 6,8 . However, in our population no significant association was found between reported use of anti-helminthic drugs in the previous six months and prevalence of soil-transmitted helminths (data not shown).…”

Section: Discussionmentioning

confidence: 99%

“…Santos et al 7 studied children living in a rural settlement in Minas Gerais, and the majority of them had some kind of intestinal parasite. Two recent surveys have examined putative environmental risk factors for parasitic infection in Northwest 8 and Northeast 9 Brazil, indicating that living conditions can be associated with intestinal parasitism. However, the spatial distribution of infections has not been described.…”

Section: Introductionmentioning

confidence: 99%

Prevalence and spatial distribution of intestinal parasitic infections in a rural Amazonian settlement, Acre State, Brazil

et al. 2007

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IntroductionIntestinal parasites are estimated to infect more than three billion people worldwide 1 . Most intestinal parasites are heterogeneously distributed in host populations; according to a frequently quoted estimate, 10% of hosts harbor 70% of the intestinal helminths 2 . Specific groups at increased risk of intestinal parasitic infections represent ideal targets of public health interventions. Chemotherapy-based programs to control intestinal nematodes, for example, usually target schoolchildren, who are often at increased risk of both infection and significant morbidity 3 .Despite the widely recognized role of environmental determinants of intestinal parasitism, the impact of interventions such as improved water supply and increased availability of latrine facilities has attracted relatively little attention 4 . The design and evaluation of large-scale sanitation interventions require appropriate spatial analysis of epidemiological data, since their targets are high-risk geographic units instead of high-risk individuals. Therefore, the study of the spatial distribution of intestinal parasitic infections can facilitate identification of modifiable factors that could be addressed by suitable interventions, or at least guide public health policies to appropriate interventions. Such an example is provided by a recent study of risk factors and spatial patterns of hookworm infection in a rural area in Côte d'Ivoire, where spatial analysis was ARTIGO ARTICLE

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“…An intestinal helminth study done in the Brazilian Amazon found that differences in prevalence between the districts surveyed may have been due to the degree of hygienic practices in each area. Some people used the latrine more than others (Eve et al 1998).…”

Section: Discussionmentioning

confidence: 99%

Prevalence and intensity of infections of Ascaris lumbricoides and Trichuris trichiura and associated socio-demographic variables in four rural Honduran communities

DeKaminsky

Niwas

et al. 2001

Mem. Inst. Oswaldo Cruz

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Parasitic infections in villagers from three districts of the Brazilian Amazon

Cited by 6 publications

References 19 publications

Impact of antihelminthic treatment on infection by Ascaris lumbricoides, Trichuris trichiura and hookworms in Covas, a rural community of Pernambuco, Brazil

Impact of antihelminthic treatment on infection by Ascaris lumbricoides, Trichuris trichiura and hookworms in Covas, a rural community of Pernambuco, Brazil

Prevalence and spatial distribution of intestinal parasitic infections in a rural Amazonian settlement, Acre State, Brazil

Prevalence and intensity of infections of Ascaris lumbricoides and Trichuris trichiura and associated socio-demographic variables in four rural Honduran communities

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