If you have a child born with a birth defect, what are the chances it will happen again with your next baby?

As potentially deadly avian influenza (H5N1) continues its global spread, moving from birds into mammals and in rare cases into humans, scientists are confronting a difficult reality. If a human pandemic emerges, vaccines designed specifically to protect people against H5N1 may not be ready in time.

During a public health emergency, who do people trust to deliver accurate, life-saving information – politicians, the press, the government?