Actually, I'd go further and say that a flu vaccine is EVEN more important for people newly diagnosed with diabetes than for those who have had it for a few years and can deal with fluctuating blood glucose etc, especially if on insulin and able to adjust doses. Having said that, I've only missed one flu vaccine, because I was working 250 miles away from home during the week, so couldn't get to clinic during hours / days they were open. Not recommended though, even though I didn't get flu.