Epidemiologic typing of Salmonella enterica serotype enteritidis in a Canada-wide outbreak of gastroenteritis due to contaminated cheese.
A major Canada-wide outbreak of gastroenteritis due to Salmonella enterica serotype Enteritidis phage type (PT) 8 occurred in 1998, and this was traced to contaminated cheese in a commercial lunch pack product. Phage typing and pulsed-field gel electrophoresis linked the clinical and cheese isolates of serotype Enteritidis but failed to differentiate outbreak from nonoutbreak PT 8 strains. Further differentiation was made by biotyping based on melibiose fermentation.
Ahmed
R
R
National Laboratory for Enteric Pathogens, Bureau of Microbiology, Laboratory Centre for Disease Control, Winnipeg, Manitoba R3E 3R2, St. John's, Newfoundland, Canada. Rafiq_Ahmed@hc.,sc.gc.ca
Soule
G
G
Demczuk
W H
WH
Clark
C
C
Khakhria
R
R
Ratnam
S
S
Marshall
S
S
Ng
L K
LK
Woodward
D L
DL
Johnson
W M
WM
Rodgers
F G
FG
D015373:Bacterial Typing Techniques; D001434:Bacteriophage Typing; D002170:Canada / Q000453:epidemiology; D002611:Cheese / Q000382:microbiology*; D004196:Disease Outbreaks; D016521:Electrophoresis, Gel, Pulsed-Field; D005759:Gastroenteritis / Q000453:epidemiology* / Q000382:microbiology; D006801:Humans; D017720:Molecular Epidemiology; D012478:Salmonella Food Poisoning / Q000453:epidemiology* / Q000382:microbiology; D012477:Salmonella enteritidis / Q000145:classification*