Fig. 2

a Forest plot showing distribution of incidence of influenza virus infectionof any kind from serology studies in pregnant women, per 10,000 pregnancies, with 95% confidence intervals. b Forest plot showing distribution of incidence of symptomatic influenza virus infections in pregnant women, per 10,000 pregnancies, with 95% confidence intervals. c Forest plot showing distribution of incidence of influenza-associated hospital admissions in pregnant women, per 10,000 pregnancies, with 95% confidence intervals. d Forest plot showing distribution of incidence of influenza-associated ICU admissions in pregnant women, per 10,000 pregnancies, with 95% confidence intervals. e Forest plot showing distribution of incidence of influenza-associated deaths in pregnant women, per 10,000 pregnancies, with 95% confidence intervals