//The backtracking starts. It wasn't a few hundred, it was one hundred.//
I should have been clearer initially that "one hundred" was an order of magnitude estimate rather than a central value estimate. I apologise for not being specific enough. I was, however, also explicit that I didn't know the precise figure, so that any figure I *did* give automatically comes with some uncertainty. In this case, the uncertainty is "plus or minus one digit", which as I have explained is a standard estimation technique. Still, I should have said "a few hundred" from the start. On the other hand, adding clarity isn't backtracking. My assessment of the comparative risks of vaccines v. disease is hardly reliant on the distinction between, say, 100 vaccine-caused deaths and 500 vaccine-caused deaths. However tragic the extra 400 deaths are, the difference on the scale of total administered vaccines -- over four billion -- simply doesn't register.