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. 2012 May 7;7(5):e36602. doi: 10.1371/journal.pone.0036602

Table 1. Abscess size and colonization of catheters according to dose of three Staphylococcus epidermidis strains in inbred C57BL/6JCrl , outbred Crl:CD1(ICR), and inbred BALB/cAnNCrl mice#.

Abscess size (mm2), strain of mice, and bacterial dose (CFUs*) Colonization of catheters (no. of CFUs ± SEM), strain of mice, and bacterial dose (CFUs)
Bacteria C57BL/6JCrl Crl:CD1(ICR) BALB/cAnNCrl C57BL/6JCrl Crl:CD1(ICR) BALB/cAnNCrl
108 109 108 109 108 109 108 109 108 109 108 109
S. epidermidis WT§ 12±1a 41.8±3a 10±2.3a 39.8±3.5a 22.5±5.4b 63.8±4.7a 286±97a 1,235±60a 5,993±1,937a 9,900±3,580a 2,468±1,910a 9,960±3,340a
S. epidermidis hemB £ 0a 16.5±1a 0a 7.8±1.1b 0a 28.3±5.5c 56±46a 0a 1,215±454a 9,540±3,659b 4,195±3,425a 3,305±2,330a , b
S. epidermidis CM+ 27±2.7a 26±4a 8.75±1.6a 55±2.3b 19.5±6.5a 68.8±5.5b 3,917±1,497a 3,220±2,161a 807±536a 404±39a 5,800±2,333a 11,524±8,168a
#

four 8–12 week old male mice per bacterial- dose and phenotype were used.

*

CFUs: colony-forming unit,

SEM: standard error of the mean,

§

WT: wild type,

£

hemB: hemB knock-out mutant with small-colony-variant phenotype,

+

CM: complemented mutant of S. epidermidis hemB.

a–c

Values with different superscripts within a row, assigned to the same infectious dose, and separated between abscess size and colonization vary significantly (p<0.05; Student's unpaired t-test).