Publication: Asymptomatic malaria infections among foreign migrant workers in Thailand
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Issued Date
2011-07-01
Resource Type
ISSN
19957645
19957645
19957645
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2-s2.0-79960857904
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Mahidol University
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SCOPUS
Bibliographic Citation
Asian Pacific Journal of Tropical Medicine. Vol.4, No.7 (2011), 560-563
Suggested Citation
Kanyanan Kritsiriwuthinan, Warunee Ngrenngarmlert Asymptomatic malaria infections among foreign migrant workers in Thailand. Asian Pacific Journal of Tropical Medicine. Vol.4, No.7 (2011), 560-563. doi:10.1016/S1995-7645(11)60146-6 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/12423
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Title
Asymptomatic malaria infections among foreign migrant workers in Thailand
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Abstract
Objective: To determine the prevalence of malaria infections among foreign migrant workers in Thailand. Methods: Giemsa-stained thin and thick blood films were prepared from blood samples of 294 foreign migrant workers recruited in the study. Microscopic examination of these blood films was performed for malaria detection. Results: Blood film examination revealed 1.36% malaria infections in these 294 subjects. All positive cases were male Myanmar workers in which their blood films only ring stage of Plasmodium spp. was found at low parasite density (mean= 144 parasites/μ L of blood). The prevalence of malaria infections was not significantly different among foreign migrant workers classified by age, gender, and resident province (P > 0.05). Thin blood films of these workers also showed 78.91% hypochromic erythrocytes and 61.9% relative Eosinophilia. Conclusions: These findings indicate a high risk of malaria transmission. Therefore active malaria surveillance by using molecular methods with more sensitive and specific than microscopy should be considered for malaria control in foreign migrant workers. © 2011 Hainan Medical College.