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. 2021 Sep 9;10(9):2136. doi: 10.3390/foods10092136

Table 3.

Standards used for the expression of results obtained by the disk method.

IHD (x) Results Sensitivity of Bacteria
<8 mm Insensitive
9 mm < x < 14 mm + Sensitive
15 mm < x < 19 mm ++ Very sensitive
x > 20 mm +++ Extremely sensitive