Interventions for Tuberculosis Control and Elimination
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From what is known about BCG, the WHO recommendations for high tuberculosis incidence and low income countries are sensible: vaccination should be given at birth or within the first year of life and re-vaccination at older age is not indicated.
In most industrialized countries tuberculosis in children and particularly its serious manifestations against which BCG works best, has become so rare that mass vaccination is not warranted. Persons professionally exposed to multidrug-resistant tuberculosis might be considered for vaccination. Although this usually concerns adults in whom efficacy is doubtful, the options with preventive chemotherapy in case of infection are questionable as well.
