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Prevalence of A. bovis in rabbits by month. Black bars, 2000; dark gray bars, 2001; light gray bars, 2002. Data from 1998 and 1999 are not included in this graph because collections occurred only in the spring and fall. Hatched bars, mean prevalence for all years of collection, 1998 to 2002. Note that 2002 collections halted in August, and 2000 collections halted in September.
