One of the problems here is is that universities, colleges and the NHS aren't pushing it enough. I found the recommendations to have ACWY vaccination online. My college didn't suggest it before I left, even knowing that I was going to university; and my university of choice only recently suggested it. UCAS followed suit even later.
Even when I went to my GP to ask for information about it they couldn't provide any. But arranging to have it was easy, I basically just had to make an appointment with a nurse at my surgery and it was all very quick and easy. She even gave me a print out of every vaccination I've had in case my university wanted to check.
I seem to also recall a poster on here mentioning that they had tried to get the jab but that there was a nationwide shortage. Thankfully I arranged to get mine very early in the year because I like to avoid this sort of chaos.
It's annoying when other people neglect to have vaccines for serious diseases like meningitis. Not that I can blame them, because most people had no idea they 'needed' it. But consider this, anyone that does get meningitis will be more susceptible to catch and spread other diseases as well, which is going to set everyone on campus up to catch colds, flu or worse; even if they were vaccinated against the disease in question.