0.05 ml, Intradermal for Infants under one year of age, 0.1 ml, Intradermal for children over one year of age and adult.For the prevention of Tuberculosis, BCG is preferably given at birth to provide protection in the early years when infection can often lead to diseases such as miliary tuberculosis or tubercular meningitis.Infants may receive the vaccine soon after birth or later, but preferably before exposure to persons with active tuberculosis.