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Isolation rates give an estimate of the proportion of cats infected with Bordetella bronchiseptica at
the time of sampling. However, sampling is not always a successful method of detecting infected
cats, particularly carrier cats. The isolation rate, therefore, usually underestimates the
number of cats infected at a particular time.|
In an Italian study (Pennisi et al 1999) of 162 cats, Bordetella bronchiseptica (Bb) was
isolated from 32% of cats with a history of URTD and in only 13% of cats with no history of
URTD.
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Bb was isolated from 5% of 526 animals (McArdle et al 1994) and 11%
of all cats sampled (Binns et al 1999) in UK studies. These results are
particularly significant when compared with isolation rates for FCV and FHV (26% and 5%
respectively, Binns et al 2000).
    
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