Examination of Witness

Part of Agriculture Bill – in a Public Bill Committee at 3:00 pm on 13th February 2020.

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Professor Keevil:

That is a good question, because you will get different metrics if you go to different sources. What we tried to do with those numbers was look at the annual reporting by the Centres for Disease Control and Prevention in Atlanta. You will find the information on their website. A lot of the agencies say, “Well, these are the numbers of actual reports that we have received,” for example, through people going to hospital, to their GP and so forth, and then they apply a multiplication factor for the numbers who could have been affected but for whom the signs of disease are much less—people who do not report that they have had any disease. A lot of the information is based on those types of numbers—for example, 14% of Americans do not report to a doctor to say they have had food poisoning—but they are extrapolated. As I say, you will get different metrics depending on your source. It could be that the figure in the UK is more than 1.5%, but I do not think it is anywhere near what the Americans have extrapolated.