Earlier quoted context omitted.
Having silverware actually made out of silver existed for sanitary reasons as well. Same reason to throw a silver dollar in your well.
Unfortunately, it's also a cause of metal poisoning. "Blue blood" was a term for upper class families with silverware who had silver poisoning because of it. My recollection: we don't know how to treat silver poisoning.
Now, if it was silver and arsenic, or some other toxic compound, that'd be a very bad time, but elemental silver shouldn't be any worse than mildly annoying.