Seroepidemiology of Human Cystic Echinococcosis Among Nomads of Lorestan Province, Iran

Sharafi, Ali Chegeni and Kheirandish, Farnaz and Valipour, Mehrdad and Saki, Mohammad and Nasiri, Elham and Darjazini, Sara (2018) Seroepidemiology of Human Cystic Echinococcosis Among Nomads of Lorestan Province, Iran. ARCHIVES OF CLINICAL INFECTIOUS DISEASES, 13 (3).

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Abstract

Background: Cystic Echinococcosis (CE) is one of the major zoonotic parasitic diseases caused by the larval stages of parasite Echinococcus granulosus. This is an endemic disease in a number of regions in Iran, such as Lorestan province, and is considered as a health problem. Objectives: Due to the close contact of nomadic people with sheep dog, this research aimed at studying the seroepidemiology of CE among in-migration and out-migration nomads of Lorestan province, Iran. Methods: In this cross-sectional study, among 5920 residents of nomadic areas, 315 people were randomly selected and serum samples were obtained from these individuals. IgG antibodies against CE were evaluated using the Enzyme Linked Immunosorbent Assay (ELISA). Demographic data of all subjects were collected by a questionnaire, and the results were statistically analyzed using SPSS V.20 and STATA12. Results: According to the results, the seroepidemiology of CE among the nomads was 18 (5.7%); 13 (72.22%) were male and five (27.77%) were female yet the difference was not statistically significant. The highest prevalence (7.79%) was in the age group of 20 to 30 years old, yet no significant difference was observed between various age groups. In terms of education, more seropositive cases were found amongst subjects with low education, yet no significant difference was observed between educational level and seropositivity of CE. It should also be noted that all the participants were not aware of proper washing of vegetables and fruits. Conclusions: This study was conducted for the first time in Lorestan province, Iran, and showed that the seroprevalence among the nomadic population of Aligoudarz and Sepiddasht was considerable. In order to prevent zoonotic disease, increased awareness of nomads in understanding the transmission ways of disease is suggested through health education programs according to the educational level of the target population, the majority of whom are illiterate. Active surveillance is also recommended in these areas.

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