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Volume 7      Special Issue-2019

Prevalence and antimicrobial susceptibility testing of Vibrio parahaemolyticus isolated from peeled blood cockles (Anadara granosa) sold in Kuala Terengganu
 

Tuan Zainazor Tuan Chilek1,3*, Noor Aimi Shazana Mohd Yusoff 1, Fisal Ahmad1,3, Amir Izzwan Zamri1, Noraznawati Ismail2, Shamsul Bahri Abdul Razak1,3

1Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia

2Institute of Marine Biotechnology, University Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia

3Special Interest Group Apis and Meliponi, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia

Abstract

Blood cockles (Anadara granosa) are the natural inhabitants of the marine environment that were harvested from the seawater and can be contaminated with the Vibrio species bacteria as well as Vibrio parahaemolyticus. V. parahaemolyticus is one of the major seafood-borne disease that leads to human acute gastroenteritis due to consumption of raw or undercooked seafood. Peeled blood cockles from five different supermarkets around Kuala Terengganu were sampled. A total of thirty samples of peeled blood cockles were obtained and the V. parahaemolyticus were identified. Eleven out of thirty of the samples acquired were positive with V. parahaemolyticus when streaked on selected agar (TCBS and CHROMagarTM Vibrio) which then confirmed by biochemical test (API 20E strips test) and specific-PCR method (Vp-toxR genes). Eleven V. parahaemolyticus isolates were tested for susceptibility to various antibiotics using the disk diffusion method according to guidelines set by the National Committee for Clinical Laboratory Standard. Eight types of antibiotics tested which selected randomly from the main group such as Aminoglycosides, β- lactams, Cephalosporins, Glycopeptides, Microlides, Quinolones and Tetracyclines. Antibiotics tested were Streptomycin (25g), Penicillin (10g), Cefuroxime (30g), Teicoplanin (30g), Erythromycin (10g), Ciprofloxacin (5g), Tetracyclines (30g) and Chloramphenicol (50g). All the isolates (100%) were found to be resistance to penicillin, chloramphenicol and teicoplanin. However, no isolates (0%) were resistance to streptomycin, erythromycin, ciprofloxacin, tetracyclines and cefuroxime. The results of this study provided useful information in the search for safe and efficient antibiotics in treating food poisoning patient due to V. parahaemolyticus.
Keywords: Peeled blood cockles, Anadara granosa, Antibiotic susceptibility, Vibrio parahaemolyticus, Food poisoning

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