We understand from the passage that it may be possible to use wake-up proteins as tuberculosis vaccines ---- .

People infected with tuberculosis are difficult to
treat because the bacteria can lie dormant in the
body. In this state, they are unaffected by
antibiotics and do not spark an immune response.
But they can reactivate and cause disease when
the body's immune system is compromised. Some
people believe that proteins that deliver a wake-up
call to dormant bacteria could be used to fight
tuberculosis. There are two ways wake-up
proteins might be used therapeutically. One is to
trick the bacteria out of dormancy so that they can
be zapped with antibiotics. The other is to use the
proteins as vaccines. An injection of wake-up
proteins might prime the body to notice a
subsequent infection earlier than would otherwise
be the case and attack the bacteria as they
activate.