Introduction. Campylobacter jejuni and Campylobacter coli represent one of
the main causes of bacterial diarrhoea in humans. Although the disease is
usually mild and self-limiting, severe chronic sequelae may occur, such as
reactive arthritis, Guillain-Barr? and Miller Fisher syndromes. Serotyping is
used as an epidemiological marker, while post-infective polyneuropathies are
associated with several O serotypes. Objective. Strains of C. jejuni and C.
coli were serotyped based on heat stable (HS) and heat labile (HL) antigens,
as well as biotypes to determine strain diversity. Methods. Campylobacter
spp. was isolated using selective blood media with antibiotics.
Differentiation to the species level was done by a combination of biotyping
tests and by a PCR-based RFLP test. The isolates were characterised by Penner
and Lior serotyping methods. Results. The serotypes showed diversity without
predominant serotypes. 24 HS serotypes were detected among 29 C. jejuni
strains, and seven serotypes among nine C. coli strains. HL serotyping method
successfully typed 62.5% of strains. Among 16 C. jejuni strains 14 serotypes
were detected, and three among four C. coli strains. A C. jejuni strain
associated with a patient with Guillain-Barr? syndrome was typed as biotype
II, O:19. Conclusion. The biotyping and serotyping results have indicated
that C. jejuni and C. coli strains in the region of Nis, Serbia are diverse
and could be probably of unrelated sources of origin or reservoirs. The
strain associated with the Guillain-Barr? syndrome patient was serotype O:19,
one of the most common in this post-infective complication.