Which travellers should have a pre-travel BCG?
Travellers should weigh up the advantages and disadvantages of vaccination. Most experts would suggest that vaccination is only appropriate for long-term travel (more than three months) to countries where (especially drug-resistant) TB is common and that it is principally worth considering for young children and health-care workers. There is no evidence that booster vaccination improves protection so no more than one BCG is recommended in a lifetime.
