Prevalence of Demodex mites in eyelashes among people of Oaxaca, Mexico

Vargas-Arzola, Jaime and Reyes-Velasco, Leobardo and Segura-Salvador, Aristeo and Márquez-Navarro, Adrián and Díaz-Chiguer, Dylan L. and Nogueda-Torres, Benjamín (2012) Prevalence of Demodex mites in eyelashes among people of Oaxaca, Mexico. Acta Microbiologica et Immunologica Hungarica, 59 (2). pp. 257-262. ISSN 1217-8950

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Abstract

This study was carried out to determine the prevalence of Demodex mites in eyelashes of people from different places from Oaxaca. One thousand and ten patients underwent epilation of eight eyelashes from each eye and they were processed to search Demodex which was found in 208 (20%) of the patients and among them male was more affected than female, 119 (57%) and 89 (43%), respectively. There was not found a relationship between clinical manifestations among these patients since 101 (49%) and 107 (51%) of them were symptomatic and asymptomatic, respectively. The range of age that was more affected was 96–105 (100%), followed by 86–95 (75%) and 76–85 (64%) years old. The less affected were individuals of 15–25 years old (11%). Demodex folliculorum was relatively high in the eyelashes of individuals in young and old people in the rural region studied. These people are generally the most vulnerable patients because they live in overcrowded conditions and poor hygiene which facilitates the direct infection. Demodex brevis was found in only one sample.

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