Schistosomiasis mansoni is one of the most widespread parasitic diseases in the world and has
a higher prevalence in developing countries, and is currently a serious public health problem
in Brazil. In Belém-PA, District Administrative Mosqueiro (DAMOS), there are possibilities
of occurrence of autochthonous cases of schistosomiasis mansoni, due to geographical
proximity to other areas where there are records of this disease, as well as the presence of
other environmental risk factors, as the presence of Biomphalaria straminea. With the
proposal to determine the prevalence of schistosomiasis mansoni in the neighborhood of
Marazion-DAMOS, a cross-sectional study was conducted prospectively between March
2011 and January 2012, through parasitological survey by the quantitative method of Kato-
Katz, associated with social inquiry demographic and environmental location. Participated in
the sampling universe included 407 individuals in the care of the Family Health Strategy,
which voluntarily agreed to participate in the survey, according to the ethical regulations. The
socio-demographic profile of the population was mainly aged between 11 and 40 years
without gender differences, whose occupation of housewife and student, with incomplete
primary education were the most cited. Most residents were born and proceeds from the
DAMOS, residents in the neighborhood of Marazion for over 20 years, without reports of
significant displacement to other locations. Most households had piped water service, with
indoor bathroom, toilet presence of bound stools in the septic tank. Water collections
peridomestic ditches were characterized by low flow and small water flow, high concentration
of organic products, the presence of vegetation and macrófitica vector Biomphalaria
straminea. This population reported having no contact with the water collection and know the
planorbid vector, as well as the very schistosomiasis The investigation has resulted in 100%
parasitological blade negative and the identification of eggs of S. mansoni, leading to the
conclusion that although the neighborhood of Marazion is still harmless, several factors have
to install a focus of active transmission of schistosomiasis, but there is still a fragile ecological
balance, supported by the reduced exposure of individuals to water collection, bit shift
population to areas with established foci of endemic and reasonable coverage of sanitation.
This set of variables has acted as limiting factors to the process of endemic schistosomiasis in
the neighborhood of Marazion, however, must be kept under surveillance by the peculiarities
conducive to closing the cycle of S. mansoni.
|
