People who have confirmed H1, people who have a lab test saying they had the H1 virus, do not need the vaccine. But if you had a flu-like symptom in the spring, you can't be sure it was H1, because many other viruses were circulating at the time. In these cases it's a good idea to get the vaccine, because if you didn't have H1 last spring, you would not be protected.
On November 18th, 2009. See this statement in context.