Prevalencia de la infección por paracoccidioides brasiliensis e histoplasma capsulatum en agricultores del "Caserío La Entrada". Estado Aragua, Venezuela
The paracoccidioidomycosis is one of the more frequent systemic mycosis in Venezuela. His etiologic agent is Paracoccidioides brasiliensis. Previous investigations, suggest the existence of endemic zones for Paracoccidioides brasiliensis in which the farmers are occupationally exposed in the Tovar M...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | Spanish |
| Published: |
Instituto de Altos Estudios en Salud Pública "Dr. Arnaldo Gabaldón"
2009
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| Subjects: | |
| Online Access: | https://dialnet.unirioja.es/servlet/oaiart?codigo=3194286 |
| Source: | Salud de los Trabajadores, ISSN 1315-0138, Vol. 17, Nº. 1, 2009, pags. 33-47 |
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| Summary: |
The paracoccidioidomycosis is one of the more frequent systemic mycosis in Venezuela. His etiologic agent is Paracoccidioides brasiliensis. Previous investigations, suggest the existence of endemic zones for Paracoccidioides brasiliensis in which the farmers are occupationally exposed in the Tovar Municipality of the Aragua state (Venezuela). In addition, some common endemic areas for Paracoccidioides brasiliensis and Histoplasma capsulatum have been described. Consequently, the prevalence of the infection by both fungi was determined in 131 farmers from the Caserío La Entrada (Tovar Municipality), by means of the intradermoreaction to paracoccidioidin and histoplasmin. The prevalence was 90.1% for Paracoccidioides brasiliensis and 72.5% for Histoplasma capsulatum, being the skin reactivity positive for both antigens in 88 farmers (67%). Association was not statistically significant (p=0,186) among the skin reactivities. The frequency of infection by Paracoccidioides brasiliensis and/or Histoplasma capsulatum was independent from age, sex and time working in farms. High percentages of skin reactivity were found in individuals under 10 years of age (paracoccidiodin: 89.3%; histoplasmin: 75%) and in people working as farmers less than one year (paracoccidiodin: 85.4%; histoplasmin: 65.9%). Findings suggest that there is a coexistance of Paracoccidioides brasiliensis and Histoplasma capsulatum in the studied geographic area. In addition, the infection occurs fast and early in the life of these individuals, allowing to infer that those microorganisms are endemic and the risk of contracting the infection are elevated in the farmers. |
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