This time last year I was in southern Africa. I was not too worried about the violence in some of the places I was going to. Or the amount of travelling to far and strange places. But the one thing I was quite worries about was Malaria. Each year, there are approximately 350–500 million cases of malaria, killing between 1 and 3 million people in Sub-Saharan Africa, the majority of whom are young children and the poor.