[The Calmette-Guérin bacillus (BCG). An agent to consider in pediatric infection].

Complications occurring a long time after BCG vaccination in healthy children have been occasionally referred, despite being rare. Osteitis seems to be the most frequent of those complications; therefore it must be considered in the differential diagnosis of that sort of lesions. The authors report a case of a 15 month old boy, previously healthy, who suffered an enlargement of the right foot for 3 weeks, unresponsive to antibiotics. The lesion revealed to be osteitis due to bacillus Calmette-Guérin, and abated after specific treatment.