Feared since the days of the Roman Empire, malaria remains a major health problem. This infection is caused by the transmission of a parasite that is carried from person to person by the bites of female mosquitoes. The symptoms of malaria include fever, shivering, vomiting and it also leads to anaemia. If left untreated, malaria can cause coma and death. The scale of the problem is huge – over half of the world’s population lives in areas affected by malaria and nearly 800,000 people a year die from its effects, mostly children under five years of age and pregnant women. Malaria is the world’s leading cause of childhood mortality, killing one child every 45 seconds.