Estimation of transmission parameters of a fluoroquinolone-resistant Escherichia coli strain between pigs in experimental conditions

Table 1 Comparison of mean bacterial counts at days 1 and 10 post contact between inoculated (I) and contact (C) pigs and between experimental settings (3I × 4C versus 4I × 4C trials).

	Mean Bacterial Count (Log₁₀(CFU/g))
Time of comparison (day post-contact)	1			10
	Estimate	SD	P -value	Estimate	SD	P -value
Intercept	2.45	0.37	< 0.001	3.84	0.38	< 0.001
Group size* (n = 8/n = 7)	-0.27	0.70	0.70	-0.11	0.70	0.87
Status (inoculated/contact)	4.34	0.57	< 0.001	-0.08	0.57	0.89
Interaction (Group size*Status)	1.22	1.01	0.24	0.84	1.01	0.41

*n: number of animals per pen in the experimental settings. n = 7: 3 inoculated and 4 naïve pigs, n = 8: 4 inoculated pigs in contact with 4 naïve pigs.

ISSN: 1297-9716