Abstract
To determine the prevalence of antibodies to Taenia solium and taeniasis in a population of urban residence, an epidemiological study was carried out in a military institution located in Tegucigalpa, the capital city of Honduras. A total of 404 persons were interviewed to collect epidemiological data, investigate antibodies to T. solium cysticercus by the enzyme-linked immunoelectrotransfer blot (EITB) assay and taeniasis by Ritchie’s concentration technique. A total of 41 persons that were living at the headquarters and were traveling frequently to their rural hometowns were regarded as rural residents, the remaining 363 persons were considered urban residents. The seroprevalence of antibodies was 22% (9/41) in the rural residents and 15% (54/363) in the urban residents. The overall seroprevalence was 15.6% (63/404). Analyses of risk factors for seropositivity in the urban residents showed that seropositivity was statistically associated with poor household conditions such as raising pigs (odds ratio (OR), 5.39; 95% confidence interval (CI), 1.42–19.50), lack of potable water (OR, 3.66; CI, 1.25–9.94), lack of sanitary toilet (OR, 2.92; CI, 1.35–6.05) and earthen floor (OR, 2.48; CI, 1.28–4.73). Also seropositivity was associated with low academic education (OR, 2.5O; CI, 1.33–4.69) and lack of knowledge about the parasite (OR, 2.39; CI, 1.26–4.49). Out of 328 persons examined for intestinal parasites, two soldiers (0.6%) coming from rural areas were identified as Taenia sp. carriers. T. solium was identified in one case. Although T. solium infections originate and are more prevalent in rural villages, the high seroprevalence found in this study indicates that they can also be found at important levels in urban communities. Migration of tapeworm carriers from rural areas to the city grants the transmission of cysticercosis when poor environmental and social conditions are present.
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