What effect would vaccinating babies with the BCG and the MVA85A vaccine have on babies born with congenital TB?

Perhaps cause a stronger strain of TB.

Ref: Tuberculosis vaccine hopes dashed. 'The trial, in South Africa, involved 2794 healthy children aged four to six months, half of whom received MVA85A and the rest a placebo'.

Questions/Comment:

• Were the mothers of these babies tested for TB prior to the trial?
• Were the babies tested for congenital TB prior to receiving the BCG?
• Were the babies tested for TB prior to the MVA85A trial?
• Its possible that the children may have appeared healthy even if they were infected with TB. This occurs with other diseases as well e.g. Seemingly healthy people suddenly become acutely ill only to discover that they have cancer and that it has already spread to a number of organs