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Volume 9, Number 10—October 2003

Research

Characterization of Waterborne Outbreak–associated Campylobacter jejuni, Walkerton, Ontario

Clifford G. Clark*Comments to Author , Lawrence Price*, Rafiq Ahmed*, David L. Woodward*, Pasquale L. Melito*, Frank G. Rodgers*, Frances Jamieson†, Bruce Ciebin†, Aimin Li†, and Andrea Ellis‡
Author affiliations: *Health Canada, Winnipeg, Manitoba, Canada; †Ontario Ministry of Health, Toronto, Ontario, Canada; ‡Health Canada, Guelph, Ontario, Canada

Main Article

Table 4

Variability of phage typing (PT) and heat-labile (HL) type in outbreak strains 1 and 2a

PT HL Type No. isolates
 Total no. isolates
fla-RFLP and PFGE types NT fla-RFLP type 1, PFGE types NT fla-RFLP type 1, PFGE strain 1 types fla-RFLP types 1 & 99, PFGE strain 2 types
Outbreak strain type 1 (HS O:2 or UT; fla RFLP type 1 or NDa; PFGE types CASAI.0001, .0002, 4, 11, ND, CAKN.0001, 2, 3, ND)
13
 128
 -
 -
 1
 -
 1
31
 110
 -
 -
 1
 -
 1
33
 4
 1
 1
 -
 -
 2
[4,125]
 1
 2
 -
 -
 3
100
 1
 1
 -
 -
 2
110
 1
 -
 -
 -
 1
112
 1
 1
 -
 -
 2
[112,125]
 2
 2
 -
 -
 4
125
 20
 -
 19
 -
 39
128
 9
 2
 1
 -
 12
[125,128]
 -
 3
 1
 -
 4
UTa
 10
 -
 3
 -
 13
33 var.
 UT
 -
 -
 1
 -
 1
35
 125
 -
 -
 1
 -
 1
40
 125
 1
 -
 -
 -
 1
64
 128
 -
 1
 -
 -
 1
UT
 128
 1
 -
 -
 -
 1
Outbreak strain type 2 (HS O:2; fla-RFLP type 34 or 99; PFGE types CASAI.0003, ND, CAKNI.0003, ND)
13
 128
 -
 -
 -
 2
 2
UT
 -
 -
 -
 2
 2
14
 UT
 -
 -
 -
 1
 1
28
 4
 -
 -
 -
 1
 1
100
 -
 -
 -
 1
 1
71
 4
 -
 -
 -
 2
 2
100
 -
 -
 -
 1
 1
Total 48 13 28 10 99

aRFLP, restriction fragment length polymorphism; PFGE, pulsed-field gel electrophoreses; ND, not determined; UT, untypeable.

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