Perhaps I could enlarge as well.
You are absolutely correct. Because certain individuals with neurologic disease may be more prone to pneumonia, for example, by virtue of their basic neurological problem, it may affect their ability to breathe properly. In addition, sometimes for people who have advanced neurologic disease it would be actually difficult to tell, perhaps, if they did have symptoms of H1N1. So it's logical that those individuals would be at increased risk, for a whole variety of reasons, to complication of H1N1, which may partly be related to a difficulty of diagnosis.