Associate
- Joined
- 6 Oct 2006
- Posts
- 1,391
Yes, they are. However, we are not talking about all bacteria are we - we are talking about specific bacteria. There is also a difference between making modest and sensible precautions and going OCD on it all. There is also a big difference in the infective load caused by taking reasonable precautions and not.
Basic risk management would dictate that when the end result is potentially very severe that small measures to mitigate that risk are desirable.
The majority of these bacteria's are opportunistic pathogens to humans they are found readily in the environment. They don't just appear from nowhere and infect a human out of spite. They are quite happily sitting around in their own little environment, breeding and bacteria-ing about in large enough numbers. It's only when the opportunity arises and they find themselves in a position to take advantage and breed up a few hundred million descendants in a human gut that they 'become a problem'.
You are correct that it is all about risk management. Risk from the environmental contamination and the human contamination risk (which is usually more severe). Both of these are legislatively controlled. Food and water hygiene are two of the most strictly regulated industries. We have nothing to worry about. These bugs were here before the dinosaurs and they will be here long after the last human dies. They aren't going anywhere.