Table 4. Risk factors for animal contamination.

Factors	Odds Ratio	p*	(95% C I)
No enclosure	3.2	0.01	1,3–7.9
Placentas on farm	4.3	0.03	1.0–17.7
Keep animals with hygromas	2.7	0.02	1.0–6.2
Herd size ˃100	5.7	0.01	1.4–2.3
Municipality of Katiena	9	0.009	1.9–64.5
Municipality of Cinzana	6.6	0.04	1.0–53.5
Bamako Region	3.8	0.02	1.2–12.9
Segou Region	5.8	0.001	2.0–18.3

Data stem from data collected from November 5^th to December 12^th, 2018 in the cercle of Bamako, Segou and Sikasso, P-value based on; P-value based on χ²-test or Fisher’s exact test; and with statistically significant p<0.05).