A study of the enterotoxigenicity of coagulase-negative and coagulase-positive staphylococcal isolates from food poisoning outbreaks in Minas Gerais, Brazil

International Journal of Infectious Diseases : IJID : Official Publication of the International Society for Infectious Diseases
Jamaira Fereira VerasMarti Jett

Abstract

The purpose of this study was to identify enterotoxin genes from isolates of coagulase-negative staphylococci and coagulase-positive staphylococci obtained from dairy products, responsible for 16 outbreaks of food poisoning. From the pool of 152 staphylococcal isolates, 15 coagulase-negative and 15 coagulase-positive representatives were selected for this study. The 15 coagulase-negative isolates were tested for the presence of coa and femA genes, which are known to be characteristic of Staphylococcus aureus. After testing for enterotoxin genes by polymerase chain reaction (PCR), the 30 selected isolates were tested for the presence of toxin by immunoassay. Seven of the coagulase-negative isolates amplified the coa gene and were subsequently reclassified as coagulase-positive. Twenty-one of 30 selected isolates had staphylococcal enterotoxin genes and most of these produced toxin as well. The most frequently encountered enterotoxin genes were sea and seb. Among eight coagulase-negative isolates, five had enterotoxin genes, all of which were found to have detectable toxin by immunoassay. The results from this study demonstrate that coagulase-negative as well as coagulase-positive staphylococci isolated from dairy products are ca...Continue Reading

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Citations

Jun 10, 2010·Foodborne Pathogens and Disease·Vera Lúcia Mores RallJoão Pessoa Araújo
Feb 28, 2013·Foodborne Pathogens and Disease·Daniele G LyraCelso J B Oliveira
Jul 1, 2010·Toxins·María Ángeles ArgudínMaría Rosario Rodicio
Nov 5, 2013·European Journal of Pharmacology·Dong-Liang Hu, Akio Nakane
Apr 5, 2014·Foodborne Pathogens and Disease·Fabio Alessandro PieriLuis Augusto Nero
May 9, 2014·Diagnostic Microbiology and Infectious Disease·Nicholas J PrindezeJeffrey W Shupp
Nov 27, 2015·Euro Surveillance : Bulletin Européen Sur Les Maladies Transmissibles = European Communicable Disease Bulletin·Joël MossongPierre Weicherding
Mar 19, 2013·International Journal of Food Microbiology·M PodkowikJ Bania
Dec 24, 2015·BioMed Research International·Raquel Soares Casaes NunesVânia Margaret Flosi Paschoalin
Sep 10, 2015·Foodborne Pathogens and Disease·Sabina Dos Santos Paulino da SilvaMaria Celeste Nunes de Melo
Apr 1, 2017·Critical Reviews in Food Science and Nutrition·Noreddine Benkerroum
Feb 2, 2013·Journal of Burn Care & Research : Official Publication of the American Burn Association·Jeffrey W ShuppMarion H Jordan
Nov 11, 2017·Frontiers in Microbiology·Karen K DittmannVirginie Oxaran
Sep 28, 2017·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Snezana BulajicTijana Ledina
Nov 22, 2019·Microbial Drug Resistance : MDR : Mechanisms, Epidemiology, and Disease·Kamelia M OsmanAyman Elbehiry
May 11, 2017·Annals of Clinical Microbiology and Antimicrobials·Kamelia OsmanMohamed Elhadidy
Oct 27, 2009·Experimental Biology and Medicine·Shuguang BiMarti Jett
Sep 15, 2017·Antimicrobial Resistance and Infection Control·Kyaw Thu AungLee Ching Ng
Nov 19, 2020·Journal of Pathogens·Majoie Géroxie TohoyessouLamine Baba-Moussa

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