Fig. 2

Density distribution curves of gestational age by ANC visit among women sampled from the KHDSS area. Each curve represents participant’s ANC visits i.e. visit one to fifth. The three gestational age windows (28–32 weeks), (26–33 weeks) and (24–36 weeks) for maternal RSV vaccination and the proportion of women attending within that gestational age window (76.6, 84.5 and 96.2% respectively), are also shown