Why do people keep asking for a source to back up pretty straight forward statements. Was that an unusual or surprising statement?

It would seem like common sense at this stage that if someone with an infectious disease sneezes on your raw salad leaves or your cold lasagna, you're probably getting it too no?

If you think the OPs comments are important, maybe you could also go verify this information yourself and post back if you find something worthwhile refuting the original claim.