“…Most of the cases in our study did not have any documented prior or concurrent illness at the time of vaccination. Although Bell's palsy has been reported to occur three times higher in pregnant women than in non-pregnant women [15], other studies did not show an increase during pregnancy [28,29]. Of the 340 pregnant women who received 2009-H1N1 vaccine reported to VAERS during our study period, five (1.5%) had Bell's palsy compared to 24 (1.6%) cases among 1,458 non-pregnant women of reproductive age (i.e., 15-44 years) following 2009-H1N1 vaccination [30].…”