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It is therefore essential that the methods used ensure that there is no or minimal contact between the worker, and others in the laboratory, with the microbe, either directly or as aerosols.
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It is therefore essential that the methods used ensure that there is no or minimal contact between the worker, and others in the laboratory, with the microbe, either directly or as aerosols.
Equally, it is important that the microbes being worked with are kept pure and are not contaminated with those from the environment.
The skills and methods used to prevent these two occurrences are called aseptic or sterile techniques.
This essentially mean that all tools and media used are free from the presence of any living material (sterile) and experiments are carried out in such a way as to prevent the accidental introduction of unknown microbes (contamination).
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