대한의료관련감염관리학회 Korean Society for Healthcare-associated infection Control and Prevention.

pISSN 0705-3797. eISSN 2586-1298.

Environmental surveillance for legionella in hospital premise plumbing

Date of exam Inspector Subject No. specimen (positive/total) Type of positive specimen Culture report (CFU/L) Temp. (℃) FRC (mg/L) Location of positive specimen
19.06.25 PHC Cooling tower
Building 1
1/2
4/12
Cooling water
Hot water
2,600
400-13,400
Washstand, shower in patient’s room
19.07.15 Self Building 1
Building 2
Faculty office
0/10
2/12
1/1
Hot water
Hot water
50-100
4,400
49.1
58.8
<1.0
<1.0
Washstand, shower in patients’ room*
Washstand in faculty office
19.07.31 Self Building 1-2 0/15
19.08.06-28 PHC Building 1
Building 2
Cooling tower
0/5
0/6
0/2
19.09.10-18 Self Building 2
Building 1
1/8
1/2
Hot water
Hot water
50
150
56.7
55.6
<1.0
<1.0
Washstand in nurses’ station
Bedside washstand in MICU
19.09.25 Self Building 2
Building 1
0/28
0/6
19.09.30 PHC Cooling tower
Building 1-2
1/2
0/18
Cooling water 8,000
19.10.21 Self Cooling tower
Water tank
1/2
0/1
Cooling water 800

*Samples collected from patient’s room where 1st case stayed. Samples associated with 3rd case.

Abbreviations: CFU, colony forming unit; Temp., temperature; FRC, free residual chlorine; PHC, public health center; MICU, medical intensive care unit.

Korean J healthc assoc Infect Control Prev 2023;28:135~142 https://doi.org/10.14192/kjicp.2023.28.1.135
© Korean J healthc assoc Infect Control Prev