I was just shaking my head on the issue of this unpublished study that suggests that getting seasonal influenza vaccine puts you at greater risk for H1N1. I just think that's.... You know, it's unpublished. It's virtually a rumour. I don't put too much stock into it, in great part because this question has been studied by many other groups who have looked at the same thing, including us, who have found no such effect. In fact, the majority of papers that are published--I would say nine out of ten papers--say that if anything, getting the seasonal vaccine is neutral. There have been one or two papers that have said it's actually protective. So I don't think I'd put too much stock in an unpublished paper at this stage.
On October 19th, 2009. See this statement in context.