Discussion
State whether the following is true or false.
A contaminated culture can usually be rescued and should be treated rather than discarded.
Answer: C
Correct answer: False
A contaminated culture is discarded, and the incubator and hood are decontaminated. Antibiotics may suppress an infection without eliminating it, leaving a low-level contamination that alters the cells’ behaviour invisibly and seeds every other culture handled afterwards. Since a fresh vial can be thawed from the frozen stock, keeping a contaminated flask risks a great deal to save very little.
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