GIANLUIGI GUERCIA/AFP PHOTO
A Doctors Without Borders (MSF) staff tests for HIV a sex worker at her room along the Beira 'corridor' on October 17, 2014 in Beira, Mozambique. The Beira corridor is a strip of land running from the Indian Ocean port of Beira, Mozambique's second city, to Zimbabwe’s eastern border and up to Zambia and Malawi, all three land-locked countries. Mozambique’s mining boom has attracted migrant workers and sex workers from the subregion, two “key populations” particularly vulnerable to infection by HIV. MSF is providing tailored services for them in an effort to curb transmission of the epidemic. AFP PHOTO/GIANLUIGI GUERCIA