By Elise Labott and Dan Morgan, CNN

For thousands of African asylum seekers fleeing danger via Egypt's Sinai desert, one woman serves as an oasis after their harrowing journey into Israel.

She was born in Eritrea as Azezet Habtezghi Kidane. In the migrant shelters of South Tel Aviv, she is known simply as Sister Aziza.

In the free clinic for migrants run by the Physicians for Human Rights-Israel, where she volunteers as a nurse, Sister Aziza examines the African refugees. She sees burns and whip marks on the body of one of the men who fled to Israel though the Sinai. FULL POST