Exposure of Seasonal Migrant Workers to Onchocerca volvulus on Coffee Plantations in Guatemala
Onchocerciasis (river blindness), which is close to being eliminated from Guatemala through semiannual administration of ivermectin, is still transmitted in one area of the country that coincidentally receives an annual influx of migrant workers to harvest coffee. Migrant workers generally are not i...
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| Veröffentlicht in: | The American journal of tropical medicine and hygiene 2009-09, Vol.81 (3), p.438-442 |
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| creator | Lindblade, Kim A Richards, Michael Richards, Jane Gonzalez, Rodrigo J Cruz-Ortiz, Nancy Zea-Flores, Guillermo Morales, Alba Lucia Sauerbrey, Mauricio Castro, Julio Catu, Eduard Arana, Byron Richards, Frank O., Jr Klein, Robert E |
| description | Onchocerciasis (river blindness), which is close to being eliminated from Guatemala through semiannual administration of ivermectin, is still transmitted in one area of the country that coincidentally receives an annual influx of migrant workers to harvest coffee. Migrant workers generally are not included in semiannual ivermectin treatments, but if infected could serve as a reservoir. We report on two studies undertaken to measure the exposure to onchocerciasis (presence of IgG4 antibodies to a recombinant Onchocerca volvulus antigen, OV-16) among migrant workers. During two coffee harvest seasons, 170 migrant workers with a history of working in the disease-endemic area were tested and 1 (0.6%, 95% confidence interval = 0-3.2%) was seropositive. This low rate of exposure in migrant workers indicates that they are unlikely to play a significant role in transmission of onchocerciasis and may indicate that transmission in the last remaining disease-endemic area of Guatemala is decreasing significantly. |
| doi_str_mv | 10.4269/ajtmh.2009.81.438 |
| format | Article |
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| subjects | Adolescent Adult Agriculture Animals Anthelmintics - administration & dosage Anthelmintics - therapeutic use Biological and medical sciences Coffee Female Guatemala - epidemiology Humans Infectious diseases Ivermectin - administration & dosage Ivermectin - therapeutic use Male Medical sciences Occupational Exposure Onchocerca volvulus Onchocerciasis - epidemiology Pilot Projects Population Surveillance Seasons Transients and Migrants Young Adult |
| title | Exposure of Seasonal Migrant Workers to Onchocerca volvulus on Coffee Plantations in Guatemala |
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