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Paper Information

Journal:   HORMOZGAN MEDICAL JOURNAL   Fall 2003 , Volume 7 , Number 3; Page(s) 123 To 127.
 
Paper: 

INTESTINAL AND BLOOD PARASITES OF BROWN RATS IN BANDAR ABBAS

 
 
Author(s):  HAMEDI Y.*, HEYDARI M., SOLEYMANI AHMADI M.
 
* Faculty of Medicine, Department of Parasitology, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
 
Abstract: 

Introduction: Rats are the most common animals existing in the rural and urban areas. According to our ritual beliefs they are dirty and unclean. Therefore it was decided to determine their role as a risk factor to human and livestock health resulting from their transmission of zoonotic parasites.
Method & Material: A total number of 63 rats were trapped alive from different rural areas in Bandar Abbas, and transferred to the laboratory. They were anaesthetized with chloroform. To examine blood and intestinal dwelling parasites, 5 ml of blood was taken directly from their heart, thick and thin blood films were prepared, blood films were stained Geimsa, faeces were collected in the fixative-preservative, faucal smears were prepared with the pellet obtained by formol-ether centrifugation, then slides were stained with modified Ziehl-Neelsen (Acid-Fast) and also permanent trichrome technique.
Results: Most of the under study rats were brown rats (Rattus norvegicus). The presence of five species of enteric protozoa and three species of helminthes ova was detected. Cryptosporidium oocysts were detected in the faeces of 11 (17.4%) rats. Babesia, Borrelia, Anaplasma and Trypanosoma lewisi were seen in Geimsa stained blood smears. Mixed infections were common, overall infection rate with one or more species was 87%.
Conclusion: The present study suggests that wild rats represent a risk to human and livestock health through the carriage and transmission of zoonotic parasites
.

 
Keyword(s): RATS, PARASITES, PREVALENCE, EPIDEMIOLOGY
 
References: 
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