(Unless it was a REALLY saturated fish !!!! I don't know if that is possible)
Did you see this thread?
http://www.democraticunderground.com/discuss/duboard.php?az=show_mesg&forum=104&topic_id=3290815&mesg_id=3290815I tried to post a lot of sources... I just found out about the possible RhoGam link that would affect 2nd (or later) children.
Even without the RhoGam possibility - some kids are going to be more susceptible - disposed to getting it.
And I don't think this is something mothers should feel guilty about. MAD maybe - at all of the industries polluting (including the pharmaceutical industries polluting the vaccines).