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. Author manuscript; available in PMC: 2021 May 15.
Published in final edited form as: Pediatr Res. 2020 Jun 29;89(5):1136–1143. doi: 10.1038/s41390-020-1031-2

Fig. 4.

Fig. 4

Milk IgG specific to Bordetella pertussis filamentous hemagglutinin (anti-FHA) and pertussis toxin (anti-PT) in mother’s own breast milk (MBM) and donor breast milk (DBM) and gastric samples from preterm infants fed MBM and DBM (26–36 weeks of gestational age (GA)). a–d Relative abundance of anti-FHA IgM at 8–9 days postpartum, anti-PT IgM at 8–9 days postpartum, anti-FHA IgM at 21–22 days postpartum and anti-PT IgM at 21–22 days postpartum. Values are means ± SD, n = 20 for 8–9 days and n = 16 for 21–22 days postpartum. Asterisks show statistically significant differences between variables (***p < 0.001; **p < 0.01; *p < 0.05) using the Wilcoxon matched-pairs signed-rank test. EU, ELISA Units/mL.