Isolates of associated with different animal hosts were analysed by and genotyping by temporal temperature gradient gel electrophoresis (TTGE). All the isolates from cats (n=138), dogs (n=42) and pigs (n=13) could be assigned to one of two and one of three TTGE sequence types, respectively. Two avian isolates and a marmoset isolate exhibited novel sequence types. Dominant but different TTGE sequence types were apparent in isolates from dogs and pigs for both (87.5% and 100%, respectively, of isolates were the dominant type) and (95% and 92%, respectively, of isolates were the dominant type). There was a wider distribution of TTGE sequence types amongst cat isolates. As both fimbriae and flagella have been implicated in adherence of bordetellae to host cells, sequence variations in fimbrial proteins and FlaA may have a role to play in host preferences.


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