Some children did survive the botched [measles] vaccinations last month and will recover. But 15, all under the age of five, died from fever, vomiting and diarrhea. This tragic event is as big as what we have seen. The inoculations took place in a remote village nearly 300 kilometers east of the capital Juba. The contaminated vaccine caused sepsis, a blood infection. Human errors contributed to the unfortunate deaths of the children and, namely, the use of unskilled and untrained personnel.