Six weeks after the baby's birth, a mother,who is enrolled in the treatment program, has to bring her baby to the clinic for injections against childhood illnesses, such as measles and polio.

VOA: standard.2010.07.01

Areas of conflict - such as Angola, Somalia and Afghanistan - are problematic for polio control because of the difficulties in running successful immunisation campaigns.

BBC: Polio case in Burkina Faso