Speaking at the GAVI Partners Forum in Dar es Salaam, Tanzania, David Olayemi, senior program adviser at Save the Children in Abuja, Nigeria, said fewer than half of children in Nigeria are receiving routine immunizations for diseases such as diphtheria, tetanus, and whooping cough (DTP), and the rate is dropping, Guardian health editor Sarah Boseley reports in her "Global Health Blog." Launching a Save the Children report that "calls on GAVI to step up efforts to reach the last 20 percent of children across the developing world who are not getting routine immunization," Olayemi said part of the reason for the lack of coverage are large efforts to vaccinate children against polio, which offer incentives to health care workers to leave clinics to go into the field, leaving no one to perform routine immunizations, the blog notes.