Development of subcutaneous abscesses due to Mycobacterium bovis following hepatitis and bacillus Calmette-Guerin vaccination.

Vaccination to prevent hepatitis B and tuberculosis (TB) forms a part of the national immunization program in the Kingdom of Saudi Arabia. The hepatitis B vaccination was introduced in the Makkah region in January 1991G. Since then, 25 children have developed post vaccination subcutaneous abscesses at the site of vaccination.