The senior researcher said the results can't prove that a mother's bout of flu while pregnant causes her child to develop the mental disorder, but the association does suggest that some cases might be prevented.

Quote from one of the research findings. Perhaps one has to have a predisposition to this illness before influenza can be considered a factor. These studies are very preliminary. There are so many factors that need to be considered before one can consider these studies to have any significance at all.

Nevertheless, it is interesting.