Incidence, Antibiotic Susceptibility and Characterization of Vibrio parahaemolyticus Isolated from Seafood in Selangor, Malaysia

Vurmila Venggadasamy, Loh Teng Hern Tan, Jodi Woan Fei Law, Hooi Leng Ser, Vengadesh Letchumanan, Priyia Pusparajah

Research output: Journal PublicationArticlepeer-review

20 Citations (Scopus)


Vibrio parahaemolyticus is one of the major foodborne pathogens owing to its cause of infectious diseases such as gastroenteritis. These diseases are often associated with the consumption of contaminated seafood. This study aims to investigate the presence of V. parahaemolyticus, their virulence, antibiotic profiles, and plasmid profiles from 77 different kinds of shellfish samples collected from wet markets and supermarkets in Selangor, Malaysia. High densities of Vibrio species (> 5 log CFU/g) were found in 14/16 groups of shellfish. Among 77 presumptive V. parahaemolyticus isolates, 43 (55.8%) were positive for the toxR gene, confirming the identity of the isolates at the species level. However, none of the V. parahaemolyticus isolates harboured the virulence tdh and trh genes. The antibiotic susceptibility of the V. parahaemolyticus isolates revealed that most of them were resistant to ampicillin (95.3%), ampicillin-sulbactam (81.4%), cefotaxime (37.2%) and imipenem (23.3%). The plasmid profiles of the V. parahaemolyticus isolates showed that 41.9% (18/43) possess at least one plasmid. Our results indicate the V. parahaemolyticus isolates are continuously exposed to various antibiotics in the environments, thus consuming the seafood carries a potential health risk to consumers. The antibiotic resistance conferred by the species necessitates an immediate plan to approach the usage of antibiotics differently.

Original languageEnglish
Article numbera0000233
JournalProgress in Microbes and Molecular Biology
Issue number1
Publication statusPublished - 8 Feb 2021
Externally publishedYes


  • Vibrio parahaemolyticus
  • antibiotic resistance
  • prevalence
  • shellfish
  • virulence

ASJC Scopus subject areas

  • Microbiology
  • Molecular Biology
  • Biochemistry, Genetics and Molecular Biology (miscellaneous)
  • Microbiology (medical)


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