Figure 1. Percentage of positive microscopic agglutination tests by Leptospira serovar, using 3 different cutoff titers for 23,005 canine sera from 2002–2004. Serovars Canicola and Icterohaemorrhagiae have been used in canine bacterins for leptospirosis during the study period. Ictero., Icterohaemorrhagiae; Autumn., Autumnalis; Bratisl., Bratislava; Grippo., Grippotyphosa.
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