Inquérito sorológico da infecção pelo Echinococcus sp no município de Sena Madureira, AC

Abstract

A serological inquiry was performed in the municipality of Sena Madureira, Acre State, Brazil, to evaluate the individual contact with Echinococcus sp. The participants were recruited from two distinct populations: residents in the urban and rural areas, the latter distributed among riverside communities of the region. A total of 1,064 individuals were evaluated: 851 from the urban zone and 213 from the rural area. The study was divided into two phases: a serological screening, in which the blood samples were collected and then sent to the Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (Serology Laboratory), Ribeirão Preto, SP, Brazil, for the serological test by counterimmunoelectrophoresis technique; and secondly an epidemiological inquiry for evaluating the individuals and their dwelling conditions and customs. Comparing the results of serological tests, the prevalence in the rural area was 6% against 3.5% in the urban area. The overall prevalence was 4%. The possibility of the existence of another intermediate host in the life cycle of Echinococcus vogeli was analyzed and the findings indicated the domestic pig as being the most probable.

First molecular identification of Echinococcus vogeli and Echinococcus granulosus (sensu stricto) G1 revealed in feces of domestic dogs (Canis familiaris) from Acre, Brazil

“…), consistent with epidemiological studies of canids in China [46] and Iran [47]. Thirdly, one E. vogeli -positive sample was collected from the municipality of Sena Madureira, where clinical cases and seroreactivity to polycystic echinococcosis have been described in urban and rural areas [48, 49]. Fourthly, dogs fed infected raw viscera were found to be an important risk factor in the epidemiology of echinococcosis [8, 14, 50].…”

Polycystic echinococcosis in the state of Acre, Brazil: contribution to patient diagnosis, treatment and prognosis

“…Two factors may have contributed to the inclusion of a greater number of patients from this city: (i) knowledge of the disease provided by the seroepidemiological survey conducted by Pastore (2001) , during which 851 interviews were held in the urban area and 213 in the rural area in a population of 29,412 inhabitants and (ii) the availability of land transportation during all seasons from that municipality to Rio Branco.…”

Manifestações clínicas da doença hidática policística apresentadas por 26 pacientes atendidos no Hospital das Clínicas de Ribeirão Preto, Estado de São Paulo, Brasil

“…Inquérito sorológico revelou que a prevalência da positividade para a infecção pelo Echinococcus sp. na população urbana e rural de Sena Madureira, Estado do Acre, foram, respectivamente, 3,5% e 6% 8 . Nessa mesma investigação foi observado que a caça de subsistência foi exercida por 22,7% da população urbana e por 54% da rural; 67,5% das pessoas da área urbana e 68,7% da zona rural já haviam comido, pelo menos uma vez, a carne de paca.…”