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. 2006 Sep;74(9):5221–5226. doi: 10.1128/IAI.00208-06

TABLE 2.

Bacterial incidence in mice at different times postwithdrawal

Tissue Day(s) post-WD No. positive/total tested
Placebo WD Morphine WD
MLN 1 1/5 5/5
3 0/5 2/5
6 0/5 1/5
Liver 1 0/5 3/5
3 0/5 3/5
6 0/5 2/5
Blood 1 0/5 1/5
3 0/5 1/5
6 0/5 2/5
Total 1/45 (2.2%)a 20/45 (44.4%)a
a

P < 0.01 for placebo withdrawal (WD) versus morphine WD.