Determinação da prevalência de Mansonella ozzardi (manson, 1897) (Nematoda: Onchocercidae) em três cidades do Alto Rio Negro, Estado do Amazonas

Abstract

Of the total population of 32.632 inhabitants, above of 18 years, 856 individuals had been evaluated, correspondents to 2.6%, volunteers, not aboriginal messengers and in order to trace the profile epidemiologist in the region. A transversal study was carried through, description and prospective to evaluate the prevalence of Mansonella ozzardi in the cities of SA° Gabriel da Cachoeira, Santa Isabel do Rio Negro and Barcelos, located in the region of the high Negro River, state of Amazon. In samples collected for the method of the thick drop in blade, 22 positive cases in the city had been identified of Sao Gabriel da Cachoeira, correspondents 2.6% of the examined sample, being 68.2% of masculine sex and 31.8% of the feminine sex. The lesser prevalence (1,39%) was found in the 38-47 band years, while that the greater (42,86%) was found in the age band of 58-67years. In the cities of Santa Isabel do Rio Negro and Barcelos the parasitism was not detected. Examinations in children and minors of 18 years had not been carried through. Agriculture was predominant the economic activity in the majority of the infected ones. In relation to the sintomatology of mansonelose, illness transmitted to the man through the bite of arthropods vectors for families Simuliidae and Ceratopogonidae, it was verified that the migraines, pains in the joints and the fatigue in the legs had been more frequent. The presence of visual injuries also was told by some people, what it confirms the studies on the pathology of this illness. The result of this research was informed to the respective Secretariats of Health of the evaluated cities, for the had treatment of the infected individuals.