Microchem Kill Rate Testing

Non-GLP Custom Surface Time-Kill Study UpdateStudy ID: NG7039

Test

Microorganism

Contact

Time

CFU/Carrier

Average CFU/Carrier

Percent Reduction

Compared to Control at Time Zero

Log 10 Reduction Compared to Control at Time Zero

P. aeruginosa

15442

Numbers Control

1.52E+07

1.63E+07

1.40E+07

1.58E+07

N/A

8 seconds

1.54E+05

1.10E+05

1.32E+05

99.2%

2.08

The limit of detection for this assay is 1.00E+01. Values less than the limit of detection are reported as <1.00E+01.

Test

Microorganism

Contact

Time

CFU/Carrier

Average CFU/Carrier

Percent Reduction

Compared to Control at Time Zero

Log 10 Reduction Compared to Control at Time Zero

S. aureus

33592

(MRSA)

Numbers Control

1.35E+07

1.37E+07

1.72E+07

1.36E+07

N/A

8 seconds

5.72E+03

2.50E+02

2.99E+03

99.98%

3.66

2.90E+04

The limit of detection for this assay is 1.00E+01. Values less than the limit of detection are reported as <1.00E+01.

Test

Microorganism

Contact

Time

CFU/Carrier

Average CFU/Carrier

Percent Reduction

Compared to Control at Time Zero

Log 10 Reduction Compared to Control at Time Zero

C. difficile

43598

(Endospores)

Numbers Control

5.70E+06

5.90E+06

4.70E+06

5.80E+06

N/A

5 seconds

4.50E+06

4.50E+06

22.4%

0.11

8 seconds

1.10E+06

1.30E+06

8.50E+05

85.3%

0.83

6.00E+05

The limit of detection for this assay is 1.00E+02. Values less than the limit of detection are reported as <1.00E+02.

Test

Microorganism

Contact

Time

CFU/Carrier

Average CFU/Carrier

Percent Reduction

Compared to Control at Time Zero

Log 10 Reduction Compared to Control at Time Zero

S. pyogenes

19615

Numbers Control

2.10E+07

3.10E+07

2.60E+07

2.60E+07

N/A

8 seconds

2.70E+02

3.00E+03

2.00E+02

1.64E+03

99.994%

4.20

The limit of detection for this assay is 1.00E+01. Values less than the limit of detection are reported as <1.00E+01.

Test

Microorganism

Contact

Time

CFU/Carrier

Average CFU/Carrier

Percent Reduction

Compared to Control at Time Zero

Log 10 Reduction Compared to Control at Time Zero

E. faecalis

51575

(VRE)

Numbers Control

7.80E+06

8.10E+06

4.90E+06

7.95E+06

N/A

8 seconds

2.70E+04

1.30E+04

8.60E+02

2.00E+04

99.75%

2.60

The limit of detection for this assay is 1.00E+01. Values less than the limit of detection are reported as <1.00E+01.

Test

Microorganism

Contact

Time

CFU/Carrier

Average CFU/Carrier

Percent Reduction

Compared to Control at Time Zero

Log 10 Reduction Compared to Control at Time Zero

E. coli

BAA - 2469

(CRE)

Numbers Control

1.31E+07

1.53E+07

1.69E+07

1.42E+07

N/A

8 seconds

8.00E+03

3.00E+04

1.87E+05

1.90E+04

99.87%

2.87

The limit of detection for this assay is 1.00E+01. Values less than the limit of detection are reported as <1.00E+01.

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