In Angola, nearly 900 cases of polio have occurred in one of the largest polio outbreaks ever recorded in Africa. It is noted that 58 children have already died, with almost all cases reported in children under 5 years old who have never been immunized. Such an outbreak was sparked by renewed fighting which displaced families to over-crowded slums in the capital Luanda. To this effect, the Government of Angola acted quickly to control the epidemic through an emergency vaccination campaign. Working with WHO and the UN Children's Fund, the Ministry of Health vaccinated more than 900,000 children during the campaign in Luanda and Benguela province in April. In addition to given caution to the world against failing to vaccinate children, the massive outbreak has also given new impetus to negotiations between Angola's warring parties to hold fire for polio vaccination.