A survey on parasitic helminthe's infections in restaurant staffs in Tabriz

The aim of study was to identify intestinal parasitic helminthes among restaurant workers ofTabriz in 2009. For this reason, stool specimens of 270 restaurant workers were collected andexamined for the presence of intestinal parasitic helminthes. Three types of techniques wereused: direct examination, saline sedimentation and formol-ether concentration. Most of thesamples were contaminated at least with one kind of parasite (Hymenolepis nana, Ascarislumbricoides, Ancylostoma duodenale and Schistosoma mansoni). Whereas, 3 cases wereinfected with two parasite (Hymenolepis nana, Ancylostoma duodenale). The prevalence ratewas 4.8% for Hymenolepis nana, and 1.1% for Ascaris lumbricoides, meanwhile theprevalence rate was 1.8% for Ancylostoma duodenale. Additionally, the blood parasiteSchistosoma mansoni was also detected in 2 cases. The infection with these parasitesaccompanies by abdominal disorders such as diarrhea, constipation and nausea and vomiting.These results indicated that, sanitary measurements were not satisfactory. Therefore, hygienicmeasures along with efficient pre-employment screening tests must be performed.