Table 2.

seasonal incidence of leptospirosis for the years 2010-2019, in Western Cape Province, South Africa

Year	Summer	Fall	Winter	Spring
	*IP (95% CI)	*IP (95% CI)	*IP (95% CI)	*IP (95% CI)
2010	0.10 (0.02,0.19)	0.28 (0.14,0.41)	0.12 (0.03,0.21)	0.09(0.01,0.16)
2011	0.12 (0.03,0.21)	0.03 (-0.01,0.08)	0.07 (0.001,0.13)	0.10 (0.02,0.18)
2012	0.07 (0.001,0.13)	0.03 (-0.01,0.08)	0.02 (-0.02,0.05)	0.03 (-0.01,0.08)
2013	0.05 (-0.01,0.10)	0.05 (-0.01,0.10)	0.07 (0.001,0.13)	0.03 (-0.01,0.08)
2014	0.02 (-0.01,0.05)	0.10 (0.02,0.17)	0.14 (0.05,0.24)	0.19 (0.08,0.30)
2015	0.20 (0.09,0.31)	0.17 (0.07,0.27)	0.16 (0.06,0.25)	0.13 (0.04,0.21)
2016	0.18 (0.08,0.29)	0.21 (0.10,0.33)	0.03 (-0.01,0.07)	0.14 (0.05,0.23)
2017	0.12 (0.03,0.18)	0.09 (0.02,0.16)	0.08 (0.01,0.14)	0.06 (0.001,0.12)
2018	0.12 (0.04,0.20)	0.15 (0.06,0.24)	0.09 (0.02,0.16)	0.10 (0.03,0.18)
2019	0.04(-0.01,0.09)	0.07 (0.01,0.14)	0.07 (0.01,0.14)	0.10 (0.03,0.18)
Average incidence	0.10 (0.03,0.18)	0.12 (0.04,0.20)	0.08 (0.02,0.15)	0.10 (0.02,0.17)

IP: incidence proportion; CI: confidence interval: *IP estimated as cases/100000 population