From climbing mountains to traveling atop camels - health workers like Mahmoud trek up to 72 hours to protect Sudan's children from polio.
Mahmoud and others prove it is
#HumanlyPossible to reach every child, no matter who they are or where they live.
t.co/xxWtqaTxjPCredits on Gondola describe each credited role and may be incomplete. A brand or featured person is not necessarily the creator.