Chris Van Hollen actually said...
Right. Now, if our theory that one of the reasons elderly people aren't as severely impacted is because they have had earlier seasonal flus or they have had earlier vaccines that may have helped them, it does suggest that this strain is very different than the strains we have been seeing for a very long period of time.
Context
Van Hollen discusses the potential immunity of the elderly to H1N1 due to past vaccinations.
09/28/2009