Leptospira seroprevalence and associations between seropositivity, clinical disease and host factors in horses

Table 5 Distribution of seroprevalences (%) for Leptospira interrogans serovars Bratislava and Icterohaemorrhagiae, cut-off 1:100, by the clinical/etiological categories/procedures asked for among non-healthy horses (n = 1617)^a

		% positive horses
Disease factor	No. of horses with clinical signs	sv Bratislava	sv Icterohaemorrhagiae
Sign, etiology or procedure^b
Behavioral problems	23	21.7	13.0
Colic	15	0	6.7
Fatigue	48	31.3	14.6
Fever	13	7.7	7.7
Inappetence	19	31.6	10.5
Integumentary problems	31	16.1	12.9
Lameness, any	905	17.2	10.5
Lame 1 limb	513	17.3	10.5
Lame ≥ 2 limbs	392	17.1	10.5
Radiographic examination^c	24	8.3	4.2
Respiratory signs	113	20.4	9.7
Staggering	10	20.0	0
Stiffness	49	22.4	8.2
Tendon injuries	70	17.1	12.9
Unwillingness to be ridden	49	24.5	10.2
Wasting	24	20.8	4.2

^aHorses sampled during September 1997–98 from clinics associated with the Swedish Horserace Totalizator Board. ^bAbortion, ophthalmological diseases and diarrhea were excluded from the clinical signs, etiological categories and/or procedures because < 10 horses were said to have been affected. Cases of septic arthritis were excluded from the joint problems. ^cAdmitted for various problems to the equine clinics by veterinarians in horse practice.

ISSN: 1751-0147