There can be diseases spread through plants too. You just think you're soooo cool and different because you don't eat meat. Like it makes you better? It just makes you weirder.
Yeah, I'm sooo cool!

When have I ever pretended to be better than anyone? You're the one who thinks they have a right to go around calling people weird
The only cases I know of diseases being spread through plants are of not preparing plants containing toxins correctly (e.g. not boiling kidney beans, or reheating rice), or of eating plant matter that has started to go
very bad. Although some food poisoning can be avoided by being very hygeine aware and cooking everything thoroughly (e.g. salmonella, e-coli), you really do have to be very thorough. And BSE (mad cow disease) is a risk present in even cooked meat - many people my generation in the UK (including me) have to face the possibility of contracting new-variant Creutzfeldt Jakob's Disease as a
direct result of being fed beef products as a child in the 80s. It is still unknown how many people will die as a result of intensive beef farming methods, because noone can predict how many people could contract it or when. The disease has a long incubation period (possibly decades), and some scientists are still predicting a major epidemic.
I believe we have duty not to cover up the inhumane farming conditions that promote these kinds of disease developing. And we certainly have a duty to not feed potentially infected food to our children in some lame political attempt to defend the farming industry.