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Table 2 Colony forming units of S. aureus shed per toddler

From: Shedding of Staphylococcus aureus and methicillin-resistant Staphylococcus aureusfrom adult and pediatric bathers in marine waters

Subject

Sand

Water

Ratio

ID

(g)

(CFU per person)

(CFU per person)

(sand/water)

T1

<0.1

N.D.

BDL

N/A

T2

6.8

500

2.7 × 104

1.8%

T3

9.9

<6

1.1 × 103

0.18%

T4

12.7

<6

1.3 × 103

0.19%

T5

3.9

<6

BDL

N/A

T6

24.4

<6

6.3 × 104

0.01%

T7

3.8

<6

BDL

N/A

T8

4.4

<6

2.5 × 103

0.08.%

T9

6.5

<6

BDL

N/A

T10

8.6

160

2.3 × 104

0.70%

T11

3.7

200

4.5 × 105

0.04%

T12*

5.8

<6

1.4 × 104

0.02%

T13

10.4

<6

2.3 × 103

0.10%

T14

7.6

12

1.4 × 104

0.09%

Average

7.7

69

4.3 × 104

0.32%

Standard Deviation

5.8

145

1.2 × 105

0.09%

  1. * Indicates the study participant colonized with MSSA
  2. N/A = Not applicable. BDL = below detection limit. BDLs were transformed to 1/2 of BDLs in order to estimate averages and standard deviations. The theoretical detection limit (2.8 × 102 CFU/person) can be calculated from the volume of water poured on the toddler (14 L) and the largest membrane filtration volume (50 ml).