Abstract
Objective:
To determine whether the combined intervention of 50 000 IU vitamin A administered together with Bacille Calmette-Guerin (BCG) vaccination at birth was associated with adverse events, in particular bulging fontanels and adverse reactions to BCG.
Subjects/Methods:
From an ongoing trial, 2145 infants randomized to 50 000 IU vitamin A or placebo with BCG vaccination were recruited. Adverse events were monitored in two different ways: (A) daily clinical examinations by a medical doctor during the first 3 days post supplementation; (B) weekly interviews by a trained assistant during the first month post supplementation.
Results:
In part A, 1271 infants were enrolled, in part B 2078. Vitamin A supplementation (VAS) was associated with a relative risk (RR) of bulging fontanels of 1.16 (95% confidence interval (CI)=0.82–1.65). The rate of health care contacts and various symptoms during the first month were comparable between the groups. VAS was associated with larger peak local reactions to BCG vaccination in boys, but not in girls (P-value for test of interaction between VAS and sex=0.02).
Conclusion:
50 000 IU vitamin A with BCG was not associated with adverse events. The observed sex-differential effect of VAS on local reaction to BCG is in line with other observations of sex-differential effects of VAS.
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Acknowledgements
PA, AR and CB designed the study and initiated enrolment. JEN collected data for part A. BRD and JEN wrote the first draft of the paper. HR assisted with the statistical analyses. All authors contributed to the final version. The study was supported by the EU (ICA4-CT-2002-10053), DANIDA and the Danish Graduate School of Public Health Science.
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Nante, J., Diness, B., Ravn, H. et al. No adverse events after simultaneous administration of 50 000 IU vitamin A and Bacille Calmette-Guerin vaccination to normal-birth-weight newborns in Guinea-Bissau. Eur J Clin Nutr 62, 842–848 (2008). https://doi.org/10.1038/sj.ejcn.1602796
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DOI: https://doi.org/10.1038/sj.ejcn.1602796
