Pulsed-field gel electrophoresis of enterotoxic Clostridium perfringens type A isolates recovered from humans and animals in Kolkata, India

Publication date: Available online 15 December 2017 Source:International Journal of Veterinary Science and Medicine Author(s): Jay P. Yadav, Suresh C. Das, Pankaj Dhaka, Asish K. Mukhopadhyay, Goutam Chowdhury, Syamal Naskar, Satyaveer S. Malik Clostridium perfringens is one of the most important globally recognised gastroenteric pathogen in humans as well as animals. The present study was aimed to know the similarities/divergence among C. perfringens type A isolates of human and animal origin using the pulsed-field gel electrophoresis (PFGE) as a molecular tool. The enterotoxic isolates obtained by screening of human diarrhoeal cases (n = 130), diarrhoeal cases of pig (n = 52) and goat (n = 50), meat samples viz., pork (n = 59) and chevon (n = 57) were characterized by standard cultural and biochemical methods followed by PCR Assays. Accordingly, a total of 11 C. perfringens type A characterized isolates (16S rRNA+, cpa +, cpb2 + and cpe +) recovered from human diarrhoeal cases (n = 3); diarrhoeal cases of pig (n = 2) and goat (n = 2); meat samples viz. pork (n = 2) and chevon (n = 2) were examined employing PFGE. The observed clustering pattern in PFGE analysis showed the relatedness between isolates from diarrhoeal goat and chevon (90–100%); diarrhoeal pig and pork (65–68%); moreover, isolates from human diarrhoeal cases were exhibiting lineage to cases from goat and pig diarrhoea as well pork and chevon by 62–68% rela...
Source: International Journal of Veterinary Science and Medicine - Category: Veterinary Research Source Type: research