Riam Sadooni1, Hassan Rezanezhad2,3, Kavos Solhjoo1,4, Mohsen Kalantari5, Behrad Pourmohammadi6, Saiedeh Erfanian7, Belal Armand1, Masoud Esmi Jahromi8. 1. Department of Parasitology, Jahrom University of Medical Sciences, Jahrom, Iran. 2. Department of Parasitology, Jahrom University of Medical Sciences, Jahrom, Iran. h.rezanezhad@jums.ac.ir. 3. Zoonoses Research Center, Jahrom University of Medical Sciences, Jahrom, Iran. h.rezanezhad@jums.ac.ir. 4. Zoonoses Research Center, Jahrom University of Medical Sciences, Jahrom, Iran. 5. Research Center for Health Sciences, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran. 6. Department of Health Education and Health Promotion, School of Health, Semnan University of Medical Sciences, Semnan, Iran. 7. Research Centre for Non-Communicable Diseases, Department of Advanced Medical Sciences and Technologies, School of Medicine, Jahrom University of Medical Sciences, Jahrom, Iran. 8. Jahrom City Veterinary Office, Jahrom, Iran.
Abstract
PURPOSE: Toxoplasma gondii is transmitted congenitally or acquired by consumption of food and water contaminated with cysts or oocysts. This study aimed at genotyping T. gondii strains from slaughtered goats in Jahrom. METHODS: A total of 561 specimens (heart, diaphragm, and tongue) from 187 slaughtered goats were collected from Jahrom slaughterhouse. After DNA extraction, the T. gondii strains were genotyped by the nested PCR-RFLP based on GRA6 and 3', and 5' ends of the SAG2 gene. RESULTS: T. gondii infection was present in 18.2% of cases. Among the examined organs, the diaphragm was more disposed to the infection (10.2%). Furthermore, infection rates of the heart and tongue were 8.6% and 3.7%, respectively. Concurrent infection in the heart and diaphragm, tongue and diaphragm, and heart and tongue were 3.2%, 0.5%, and 0.5%, respectively. In genotyping experiments, genotype I was the most frequent genotype of T. gondii (58.8%), followed by type II (23.5%), type III (11.8%), and a combination of type I and II (5.9%). CONCLUSIONS: The results of this study showed the presence of different genotypes of T. gondii in goats including three major and mixed genotypes. These results can be useful in toxoplasmosis control and prevention.
PURPOSE: Toxoplasma gondii is transmitted congenitally or acquired by consumption of food and water contaminated with cysts or oocysts. This study aimed at genotyping T. gondii strains from slaughtered goats in Jahrom. METHODS: A total of 561 specimens (heart, diaphragm, and tongue) from 187 slaughtered goats were collected from Jahrom slaughterhouse. After DNA extraction, the T. gondii strains were genotyped by the nested PCR-RFLP based on GRA6 and 3', and 5' ends of the SAG2 gene. RESULTS: T. gondii infection was present in 18.2% of cases. Among the examined organs, the diaphragm was more disposed to the infection (10.2%). Furthermore, infection rates of the heart and tongue were 8.6% and 3.7%, respectively. Concurrent infection in the heart and diaphragm, tongue and diaphragm, and heart and tongue were 3.2%, 0.5%, and 0.5%, respectively. In genotyping experiments, genotype I was the most frequent genotype of T. gondii (58.8%), followed by type II (23.5%), type III (11.8%), and a combination of type I and II (5.9%). CONCLUSIONS: The results of this study showed the presence of different genotypes of T. gondii in goats including three major and mixed genotypes. These results can be useful in toxoplasmosis control and prevention.