2007, Number 36
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Med Univer 2007; 9 (36)
Evidence of Lyme disease in a high-risk population in Northeastern Mexico
Skinner TCM, Flores GMS, Esquivel VJA, Salinas MJA, Salinas PCK, Rodríguez AJ, Garza EMA
Language: Spanish
References: 39
Page: 105-111
PDF size: 155.79 Kb.
ABSTRACT
Background: Lyme disease is an infection produced by
Borrelia burgdorferi that is transmitted by a tick bite, from the Ixodes genus, to humans. In Europe and the USA the seroprevalence is between 1 to 27%. In Mexico there are few reports about its prevalence.
Objective: To determine the prevalence of anti-Borrellia spp antibodies in a population with an occupational risk (veterinarians) in northeastern México.
Patients and methods: A transversal, observational and descriptive study was done. Questionnaires were answered by veterinarians and students of veterinary to evaluate the risk, exposure and relate symptoms to Lyme disease. Serum samples were collected and tested with commercial kits of ELISA C6, ELISA IgM and ELISA IgG. All positive or undetermined sera results by any ELISA method, were confirmed by Western blot.
Results: We analyzed 40 patients, whose average age was 23 years (18-45). 21 women (53%) and 19 men (48%). All were residents of Monterrey and its metropolitan area, except 1 patient. 37 remembered having contact with ticks and 27 remembered having been bitten by them. Nine patients (23%) had symptoms. By ELISA IgM we found nine positive sera (22.5%) and one undetermined serum (2.5%). Our findings through ELISA IgG were four positive sera (10%) and two undetermined (5%), and by ELISA C6, two positive sera (5%). By Western blot nine positive sera (22.5 %) y four undetermined sera (10 %).
Conclusion: This report reveals the existence of infection due to the causal agent of Lyme disease in a population of veterinarians in Northeast Mexico.
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