. Author manuscript; available in PMC: 2022 Jan 1.

Published in final edited form as: J Food Prot. 2021 Jan 1;84(1):113–121. doi: 10.4315/JFP-20-179

Table 2.

Diversity of Listeria spp. sigB allelic types (AT) in agricultural water and fecal samples.

Sample Type		No. of Listeria spp.^a	No. of ATs	Estimated Subtype Richness (95% CI)^b,c	Simpson’s Index (95% CI)^c	Effective No. of AT^d
Fecal	-	11	8	35 (8, 2871)	0.84 (0.75, 0.94)	6
Water	-	39	14	23 (14, 259)	0.84 (0.76, 0.92)	6
	Pond	25	11	32 (11, 1445)	0.79 (0.67, 0.92)	5
	Stream	14	8	11 (8, 39)	0.84 (0.76, 0.91)	6

Excluding L. monocytogenes

Estimated using weighted linear regression

95% CI: 95% confidence interval

Effective number of AT is calculated based on Simpson’s Index of Diversity