PS1-17: H1N1 Flu and Pregnancy: The Kaiser Permanente Experience

Background/Aims It is known that seasonal influenza infection disproportionately impacts pregnancy. Based on preliminary information, the pandemic H1N1 virus that first surfaced in spring 2009 appears to cause disproportionate morbidity and mortality among pregnant women - possibly to an even greater degree than that seen from seasonal flu. While it is estimated that over 10% of the pandemic influenza-related deaths in the United States have been in pregnant women-there is little data on the total impact of H1N1 infection upon pregnant women and their developing infants. This study will present a population-based assessment of the impact of H1N1 flu upon pregnancy, maternal, and birth outcomes.