Health worker immunizes a child against

Lagos, NIGERIA: Health worker immunizes a child against measles at Alimosho public health centre in Lagos, 03 October, 2006. The Nigerian government has began the second phase national measles immunization campaign in the 17 southern states of the country. The campaign that will include polio immunization and Vitamin A supplement is targeted at 29.4 Million children between nine months and 15 years of age. In the first phase which took place in 19 northern states in December 2005, 28.5 Million children were immunized against the diseases. (Photo credit should read PIUS UTOMI EKPEI/AFP via Getty Images)