When was the bcg vaccine launched? – this vaccine offers safety in opposition to tuberculosis (tb) an infection. it’s 70-80% efficient in opposition to probably the most extreme types of tb, akin to tb meningitis.
However, it’s much less efficient in stopping the type of tb that impacts the lungs.
The bcg vaccine comprises reside micro organism which were weakened (attenuated), in order that they stimulate the immune system however don’t trigger illness in wholesome individuals.
However the vaccine shouldn’t be given to people who find themselves clinically immunosuppressed (both as a consequence of drug remedy or underlying sickness).
This is as a result of the vaccine pressure may replicate an excessive amount of and trigger a critical an infection.
This consists of infants whose moms have had immunosuppressive remedy whereas they have been pregnant or breastfeeding.
For extra info see the mhra’s drug security replace (april 2016).