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Journal of Clinical Microbiology, August 1998, p. 2223-2228, Vol. 36, No. 8
Public Health Laboratory,
Received 20 November 1997/Returned for modification 17 April
1998/Accepted 20 May 1998
A comparative examination of the heat-stable (O) and heat-labile
(HL) serogrouping results for 9,024 sporadic human isolates of
Campylobacter jejuni revealed conserved associations
between specific O and HL antigens (O/HL serovars). Forty-nine percent of the isolates which grouped for both O and HL antigens belonged to
one of three serovars: O 4 complex/HL 1 (17.9%), O 1/HL 2 (16.8%), or
O 50/HL 7 (14.5%). Other common serovars were O 2/HL 4 (8.3%), O 6/HL
6 (8.1%), O 53/HL 11 (4.5%), O 19/HL 17 (3.3%), O 5/HL 9 (3.3%), O
9/HL 9 (3.2%), and O 23/HL 5 (3.1%). These 10 serovars accounted for
83.1% of the serogroupable isolates. A large number of strains
(41.3%) could be typed by only one of the two methods or could not be
serogrouped (11%). Strains belonging to three serovars, O 2/HL 4, O
50/HL 7, and O 23/HL 5, were further characterized by combining data
from expressed features (O/HL serogroups, phage groups, and biotypes)
with restriction fragment length polymorphism genotypes. These
polyphasic data demonstrated that within each serovar, individual
isolates showed substantial conservation of both genomic and phenotypic
characteristics. The essentially clonal nature of the three serovars
confirmed the potential of combined O and HL serogrouping as a
practical and phylogenetically valid method for investigating the
epidemiology of sporadic C. jejuni infection.
0095-1137/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
Associations between Heat-Stable (O) and
Heat-Labile (HL) Serogroup Antigens of Campylobacter jejuni:
Evidence for Interstrain Relationships within Three O/HL
Serovars
*
Corresponding author. Present address: PHLS Mycology
Reference Laboratory, Department of Microbiology, University of Leeds, Leeds LS2 9JT, England. Phone: (44) 113 233 5606. Fax: (44) 113 233 5587. E-mail: c.j.jackson{at}leeds.ac.uk.
Journal of Clinical Microbiology, August 1998, p. 2223-2228, Vol. 36, No. 8
0095-1137/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
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