The Particulars: Among children aged 2 and younger, influenza-associated morbidity is high. It is not clear, however, how the clinical complications, anti-viral treatment patterns, and healthcare use of infants aged 1 or younger during the H1N1 2009 pandemic compares with those of previous pre-pandemic seasons.

Data Breakdown: A retrospective analysis compared several factors in the 2009 H1N1 pandemic with those in the three previous seasons. Among the findings:

Take Home Pearls: During the 2009 H1N1 pandemic season, infants aged 1 or younger appeared to have been four times more likely to receive AVT than in previous pre-pandemic seasons. Hospitalization and complication risks appear to be lower with use of AVT in this patient population.


For more information on these studies and others that were presented at ICAAC 2012, go to