Table 2.

Cantonal distribution of 298 cases of canine leptospirosis and relationship to geoclimatic data.

Canton	Cases	Annual Incidence of Diagnosis		Canine Population	Human Population	Altitude	Temperature	Rainfall
	n	Average	Peak	n × 1000	n × 1000	Average (m)	°C	mm/year
		n/100,000 dogs/y
Most affected cantons (>5 cases/10y)
BE	90	13.6	27.1	66.4	963	1198	6.1	115.6
VD	59	9.8	21.7	60.0	672	827	8.5	100.9
ZH	32	5.5	17.3	57.7	1308	533	9.5	97.5
AG	25	6.4	28.1	39.1	582	476	9.7	88.3
FR	19	8.8	18.6	21.5	263	856	8.2	96.9
GE	14	4.9	13.9	28.7	438	419	10.9	73.9
SO	13	6.1	14.0	21.4	250	630	9.1	95.8
BL	9	5.0	22.0	18.1	269	521	9.7	87.3
NE	9	7.3	24.4	12.3	170	919	7.8	106.7
LU	8	3.9	24.4	20.5	364	777	8.3	113.7
Median (IQR)		6.2	21.9	25.1	401	704	8.8	97.2
		(5.1–8.4)	(17.6–24.4)	(20.7–53.1)	(265–649)	(524–849)	(8.2–9.6)	(90.2–105.3)
Least affected cantons (<5 cases/10y)
GL	2	7.9	79.0	2.6	38	1589	3.9	145.5
SG	2	0.7	3.7	27.1	466	1000	7.5	121.2
SZ	2	2.7	13.6	7.3	141	1082	6.6	147.8
TG	2	1.1	5.7	17.5	238	495	9.5	83.8
GR	1	0.7	7.5	13.4	189	2021	1.9	95.1
NW	1	6.2	61.5	1.6	40	1077	6.3	135.4
TI	1	0.4	3.8	26.4	329	1412	6.3	138.4
VS	1	0.5	4.5	22.2	299	2140	1.7	109.2
ZG	1	2.3	23.3	4.3	109	651	8.6	117.3
AI	0	0.0	0.0	0.9	16	1126	7.2	136.1
AR	0	0.0	0.0	4.5	53	935	7.8	126.0
BS	0	0.0	0.0	5.0	185	522	10.9	71.6
JU	0	0.0	0.0	8.3	70	690	8.7	101.3
OW	0	0.0	0.0	1.8	34	1329	5.4	141.0
SH	0	0.0	0.0	4.7	75	538	9.4	75.9
UR	0	0.0	0.0	1.6	35	1896	2.4	134.3
Median (IQR)		0.4	3.7	4.9	92	1080	6.9	123.6
		(0.0–1.4)	(0.0–9.0)	(2.4–14.4)	(40–201)	(680–1456)	(5.0–8.6)	(99.7–136.7)
P		<0.001	0.004	<0.001	<0.001	0.02	0.03	0.04