| serologic survey of leptospiral antibodies in horses in california. | a serologic survey was made of the prevalence of common leptospiral infections in horses in california. a total of 465 serums were tested, using the microscopic agglutination method, against 5 leptospiral serotypes: leptospira pomona, leptospira icterohaemorrhagiae, leptospira canicola, leptospira grippotyphosa, and leptospira hardjo. of the serums tested, 127 (27.30%) were positive against 1 or more of the leptospires, with percentage distribution among the reactors as follows: l pomona, 12.47% ... | 1977 | 921041 |