Table 1.

Values of some important parameters and published sources for these values

Name	Meaning	Values	Source
1/μ	Average duration of hospital stay	7–20 days	(7, 13, 46, 54)
m	Proportion of admitted already colonized with sensitive bacteria	20–100%	(55, 56)
1/γ	Average time from admission or colonization until spontaneous clearance of bacterial carriage	30–60 days	(39)
1/λ	Average time from admission to colonization	6–50 days	(3, 7, 39, 57, 58)