Leptospirosis seroprevalence and associated features in rice farmers of tropical region of Peru
Objectives. To estimate the seroprevalence of leptospirosis in rice farmers of the Alto Mayo Valley in the Peruvian region of San Martín and to identify factors associated with infection. Materials and methods. A cross-sectional study was conducted between October and November of 2010 on a sample of...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | Spanish |
| Published: |
Instituto Nacional de Salud
2014-07-01
|
| Series: | Revista Peruana de Medicina Experimental y Salud Pública |
| Subjects: | |
| Online Access: | https://rpmesp.ins.gob.pe/index.php/rpmesp/article/view/35 |
| _version_ | 1818179784048377856 |
|---|---|
| author | Jorge O. Alarcón-Villaverde Franco Romani-Romani Romina A. Tejada Paolo Wong-Chero Manuel Céspedes-Zambrano |
| author_facet | Jorge O. Alarcón-Villaverde Franco Romani-Romani Romina A. Tejada Paolo Wong-Chero Manuel Céspedes-Zambrano |
| author_sort | Jorge O. Alarcón-Villaverde |
| collection | DOAJ |
| description | Objectives. To estimate the seroprevalence of leptospirosis in rice farmers of the Alto Mayo Valley in the Peruvian region of San Martín and to identify factors associated with infection. Materials and methods. A cross-sectional study was conducted between October and November of 2010 on a sample of 254 farmers from eleven irrigation committees in the Alto Mayo Valley. A blood sample was collected as well as sociodemographic, household and labor characteristics in the form of a questionnaire. The presence of antibodies against leptospira was determined using the microscopic agglutination test and the IgM ELISA. Results. The seroprevalence by agglutination was 64.6% (95% CI: 58.6-70.6). The IgM ELISA test was reactive in 15,0% (95% CI: 10.5-19.5). The most frequent serovar were Icterohaemorrhagiae, Autumnalis, Australis, Panama and Grippotyphosa. Independently associated factors were handling rodents (adjusted OR (aOR): 7.9; 95% CI: 1.6-37.9), working barefoot (aOR: 2.9; 95% CI: 1.2-6.8) and male sex (aOR: 4.5; 95% CI: 1.3-15.3). Conclusions. The Alto Mayo Valley is a hyperendemic for leptospirosis. The most important factors were associated with working barefoot and handling rodents in crop fields. Consequently, it is recommended to implement interventions that affect these two factors in order to reduce the risk of infection in rice farmers. |
| first_indexed | 2024-12-11T21:09:22Z |
| format | Article |
| id | doaj.art-e6bbf96bcf014c3cb09700d8a327d09f |
| institution | Directory Open Access Journal |
| issn | 1726-4634 1726-4642 |
| language | Spanish |
| last_indexed | 2024-12-11T21:09:22Z |
| publishDate | 2014-07-01 |
| publisher | Instituto Nacional de Salud |
| record_format | Article |
| series | Revista Peruana de Medicina Experimental y Salud Pública |
| spelling | doaj.art-e6bbf96bcf014c3cb09700d8a327d09f2022-12-22T00:50:46ZspaInstituto Nacional de SaludRevista Peruana de Medicina Experimental y Salud Pública1726-46341726-46422014-07-0131210.17843/rpmesp.2014.312.3535Leptospirosis seroprevalence and associated features in rice farmers of tropical region of PeruJorge O. Alarcón-Villaverde0Franco Romani-Romani1Romina A. Tejada2Paolo Wong-Chero3Manuel Céspedes-Zambrano4Sección Epidemiología, Instituto de Medicina Tropical “Daniel A. Carrión” de la Universidad Nacional Mayor de San Marcos. Lima, Perú. Médico cirujano. Doctor en Medicina.Sección Epidemiología, Instituto de Medicina Tropical “Daniel A. Carrión” de la Universidad Nacional Mayor de San Marcos. Lima, Perú. Médico cirujano.Sección Epidemiología, Instituto de Medicina Tropical “Daniel A. Carrión” de la Universidad Nacional Mayor de San Marcos. Lima, Perú. Médico cirujano. Magíster en Epidemiología Clínica.Sección Epidemiología, Instituto de Medicina Tropical “Daniel A. Carrión” de la Universidad Nacional Mayor de San Marcos. Lima, Perú. Médico cirujano.Oficina General de Investigación y Transferencia Tecnológica, Instituto Nacional de Salud. Lima, Perú. Biólogo. Magíster en Salud Pública.Objectives. To estimate the seroprevalence of leptospirosis in rice farmers of the Alto Mayo Valley in the Peruvian region of San Martín and to identify factors associated with infection. Materials and methods. A cross-sectional study was conducted between October and November of 2010 on a sample of 254 farmers from eleven irrigation committees in the Alto Mayo Valley. A blood sample was collected as well as sociodemographic, household and labor characteristics in the form of a questionnaire. The presence of antibodies against leptospira was determined using the microscopic agglutination test and the IgM ELISA. Results. The seroprevalence by agglutination was 64.6% (95% CI: 58.6-70.6). The IgM ELISA test was reactive in 15,0% (95% CI: 10.5-19.5). The most frequent serovar were Icterohaemorrhagiae, Autumnalis, Australis, Panama and Grippotyphosa. Independently associated factors were handling rodents (adjusted OR (aOR): 7.9; 95% CI: 1.6-37.9), working barefoot (aOR: 2.9; 95% CI: 1.2-6.8) and male sex (aOR: 4.5; 95% CI: 1.3-15.3). Conclusions. The Alto Mayo Valley is a hyperendemic for leptospirosis. The most important factors were associated with working barefoot and handling rodents in crop fields. Consequently, it is recommended to implement interventions that affect these two factors in order to reduce the risk of infection in rice farmers.https://rpmesp.ins.gob.pe/index.php/rpmesp/article/view/35leptospirosisprevalenciaenfermedades de los trabajadores agrícolasperú |
| spellingShingle | Jorge O. Alarcón-Villaverde Franco Romani-Romani Romina A. Tejada Paolo Wong-Chero Manuel Céspedes-Zambrano Leptospirosis seroprevalence and associated features in rice farmers of tropical region of Peru Revista Peruana de Medicina Experimental y Salud Pública leptospirosis prevalencia enfermedades de los trabajadores agrícolas perú |
| title | Leptospirosis seroprevalence and associated features in rice farmers of tropical region of Peru |
| title_full | Leptospirosis seroprevalence and associated features in rice farmers of tropical region of Peru |
| title_fullStr | Leptospirosis seroprevalence and associated features in rice farmers of tropical region of Peru |
| title_full_unstemmed | Leptospirosis seroprevalence and associated features in rice farmers of tropical region of Peru |
| title_short | Leptospirosis seroprevalence and associated features in rice farmers of tropical region of Peru |
| title_sort | leptospirosis seroprevalence and associated features in rice farmers of tropical region of peru |
| topic | leptospirosis prevalencia enfermedades de los trabajadores agrícolas perú |
| url | https://rpmesp.ins.gob.pe/index.php/rpmesp/article/view/35 |
| work_keys_str_mv | AT jorgeoalarconvillaverde leptospirosisseroprevalenceandassociatedfeaturesinricefarmersoftropicalregionofperu AT francoromaniromani leptospirosisseroprevalenceandassociatedfeaturesinricefarmersoftropicalregionofperu AT rominaatejada leptospirosisseroprevalenceandassociatedfeaturesinricefarmersoftropicalregionofperu AT paolowongchero leptospirosisseroprevalenceandassociatedfeaturesinricefarmersoftropicalregionofperu AT manuelcespedeszambrano leptospirosisseroprevalenceandassociatedfeaturesinricefarmersoftropicalregionofperu |