Yellow fever vaccine push amid shortages, resurgence
The world's first multi-country yellow fever vaccination campaign began on 23 November, with 12 million people targeted across Benin, Liberia and Sierra Leone.
The push comes as the killer mosquito-borne disease is resurging in some sub-Saharan African countries and vaccine stocks are running low.
The World Health Organization (WHO) says 160 million Africans are at risk if further funding is not secured, as the current vaccine stockpile is expected to run out in 2010.
