O papel das baratas Periplaneta americana (Blattopttera: Blattidae), e Blatella germanica (Blattoptera: Blattellidae) na transmissão de Geohelmintos (Nemátodeos) causadores de parasitoses intestinais no homem na cidade de Maputo

Abstract

The study was carried out in November, December 2007 and January 2008, in the informal markets of Xipamanine and Xiquelene in the city of Maputo. Its general objective was the role of cockroaches in the mechanical transmission of geohelminths that cause intestinal parasites in humans, and to relate them to the sanitary and sanitary conditions of the environment. A total of 229 cockroaches were captured, through traps placed in the toilets and on the sales stands for food products in the two markets. The laboratory examination was carried out in the Department of Intestinal and Vescical Parasitology-INS-MISAU. The technique used for the isolation and identification of geohelminths was Ritchie-Coprotest-adapted. As a result, in both markets, a proportion of 36% of cockroaches mechanically transported one and the other form of geohelminths, such as Ascaris lumbricoides eggs, Ancylostoma duodenale, Enterobius vermecularis, Trichuris trichiura and Strongyloides stercoralis larvae. Among the captured cockroaches the most abundant was the American Periplaneta and therefore the most involved in the mechanical transport of geohelmints (85/86) 99% of the positive cockroaches. It was not possible to capture the Blatella germanica cockroach. The results show that there is a relationship of dependence between the sanitary and sanitary conditions of the environment and the proportion of captured cockroaches and isolated geohelminths in each study site. (TRADUÇÃO NOSSA)