Analysis of S. Epidermidis icaA and icaD genes by polymerase chain reaction and slime production: a case control study

Table 2 Association between slime production on congo red agar and presence of icaA and icaD genes in the 82 S. epidermidis strains

Groups	strains (n)	Slime Production	icaA	icaD	icaA+icaD	mecA
1	22	15 (68.18%)	16 (72.72%)	20 (90.91%)	15 (68.18%)	20
2	21	8 (38.10%)^△	12 (57.14%)	15 (71.43%)	11 (52.38%)	14
3	19	5 (26.32%)^◇	8 (42.11%)	15 (78.95%)	7 (36.84%)	14
4	20	8 (40.00%)^◇	12 (60.00%)	17 (85.00%)	12 (60.00%)	14

Group 1, blood isolates obtained from patients’ IV line; Group 2, nasal isolates of healthy volunteers; Group 3, nasal isolates of the same patients in Group 1; Group 4, nasal isolates of ICU staff. ^△Values are given as slime production of S. epidermidis strains vs first group (p<0.05), ^◇Values are given as slime production of S. epidermidis strains vs first group (p<0.001). There was no statistical difference among other three groups (P>0.05).

ISSN: 1471-2334