Rates of adverse reactions to first and second doses of BCG vaccination: results of a large community trial in Brazilian schoolchildren.
Dourado, I;
Rios, MH;
Pereira, SMM;
Cunha, SS;
Ichihara, MY;
Goes, JCL;
Rodrigues, LC;
Bierrenbach, AL;
Barreto, ML;
(2003)
Rates of adverse reactions to first and second doses of BCG vaccination: results of a large community trial in Brazilian schoolchildren.
The international journal of tuberculosis and lung disease, 7 (4).
pp. 399-402.
ISSN 1027-3719
https://researchonline.lshtm.ac.uk/id/eprint/16536
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OBJECTIVE: To evaluate the incidence of adverse reactions to first and second bacille Calmette-Guérin (BCG) vaccination in schoolchildren. SETTING AND DESIGN: Enhanced surveillance in a Brazilian trial. Suspected reactions were reported to a nurse who visited cases and completed a standard form. RESULTS: Among 71341 schoolchildren studied, 33 reactions were reported. Of these, 25 fulfilled the criteria, resulting in a rate of one per 2854 vaccinations, with no deaths or BCG-osis. Reactions to second doses were more common than to first BCG vaccinations, but this difference was not statistically significant. CONCLUSIONS: Adverse reactions to a second dose of BCG may be more frequent than reactions to a first dose, but they are still rare events.