title: [Malaria's seroepidemiology in a group of migrants in transit (Chiapas, 2008)].
abstract: OBJECTIVE
  To know the prevalence of malaria and the factors associated with the infection in migrants in the southern border of Mexico, during 2008.
  
  
  METHODS
  In 706 migrants, active malaria infection was investigated using a rapid diagnostic test and PCR and past infection using serology. A questionnaire was applied to investigate the conditions associated to infection.
  
  
  RESULTS
  85.6% originated from Central America, none presented an active infection, although 4.2% were seropositive, most of these came from the countries with the highest malaria incidence in the region. Seropositivity was associated with the number of previous malaria episodes (OR=1.44; IC95% 1.04-2.00), years living in their community of origin (OR=1.03; IC95% 1.00-1.07), and knowledge and self-medication with anti-malaria drugs (OR=3.38; IC95% 1.48-7.67).
  
  
  CONCLUSIONS
  . The previous exposure of migrants and the difficulties for their detection indicate the need of new strategies for the epidemiological surveillance for these populations.
authors.affiliation: Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México.
authors.forename: Angel Francisco
authors.initials: AF
authors.lastname: Betanzos-Reyes
authors.forename: Lilia
authors.initials: L
authors.lastname: González-Cerón
authors.forename: Mario Henry
authors.initials: MH
authors.lastname: Rodríguez
authors.forename: Jorge Aurelio
authors.initials: JA
authors.lastname: Torres-Monzón
mesh_terms: D000293:Adolescent; D000328:Adult; D000349:Africa / Q000208:ethnology; D000818:Animals; D000913:Antibodies, Protozoan / Q000097:blood; D000962:Antimalarials / Q000627:therapeutic use; D001208:Asia / Q000208:ethnology; D002489:Central America / Q000208:ethnology; D009033:Culicidae / Q000469:parasitology; D016054:DNA, Protozoan / Q000097:blood; D004641:Emigration and Immigration; D005260:Female; D006801:Humans; D007299:Insect Bites and Stings / Q000517:prevention & control; D007303:Insect Vectors / Q000469:parasitology; D008288:Malaria / Q000097:blood / Q000175:diagnosis / Q000453:epidemiology* / Q000517:prevention & control; D008297:Male; D008800:Mexico / Q000453:epidemiology; D009032:Mosquito Control; D018512:Parasitemia / Q000175:diagnosis / Q000453:epidemiology; D010963:Plasmodium falciparum / Q000235:genetics / Q000276:immunology; D010966:Plasmodium vivax / Q000235:genetics / Q000276:immunology; D021521:Ribotyping; D016036:Seroepidemiologic Studies; D012959:Socioeconomic Factors; D013020:South America / Q000208:ethnology; D011795:Surveys and Questionnaires; D014171:Transients and Migrants / Q000706:statistics & numerical data*; D055815:Young Adult
chemical_list: D000913:Antibodies, Protozoan; D000962:Antimalarials; D016054:DNA, Protozoan