Abstract: In order to investigate the infective situation of leptospirosis on dogs and cats, 20 pet disease monitoring sites were established in the Beijing area in 2011. 396 serum and urine samples of dogs and cats were collected at random for the investigation. Survey results showed that 106 antibody-positive samples in 200 serums by the microscope agglutination test, with positive rate of 53%. Among these positive samples, there were 20 derived from cats with positive rate of 27.8%, and others were dog serums with positive rate of 67.2%. A total of 196 urine samples were tested by RT-PCR, there were 54 positive ones founded with the positive rate of 27.6%, of which 21 copies of the cat urine with 4 positive samples, the positive rate was 19%. Dog positive urine sample were 50 copies in 175, the positive rate of 28.6%.

Key words: leptospirosis; dogs; cats; zoonosis; survey