I can’t say I “liked” the wake-up call of the Hepatitis A in an NYC restaurant. But I was happy to see it at least slightly nudge all those who believe food workers should cover their own health care and be denied sick days. As this outbreak proved, one infected worker will cost an employer 400-plus vaccines for patrons rather than the few needed for prevention’s sake. Might I quote myself, just as a new book is out reminding everyone of the very same thing? Typhoid Mary was a cook.