Typical time courses and appearance of skin reactions at the site of Bacillus Calmette-Guérin vaccination for infants inoculated at 5-8 months of age.

Our study demonstrates the typical appearance and time courses of skin reactions in infants who received the BCG vaccination at older than 5 months of age. Infants vaccinated at this age may have a more potent skin response with longer induration and ulceration than those vaccinated at birth.