With your permission, I should like to refer to the presentations made throughout this meeting, and to the conclusions that I was able to draw from the sum of what was said here.
Like any veteran malariologist, I have lived malariology as it was before and after DDT was introduced. We, the malariologists of the pre-DDT era, were called “wet feet” because we often walked through water. We were expected to know everything about parasites, mosquitoes, patients, malaria in the community, the long list of malaria control measures, and even map-making. Because other disciplines were of very little help, a manysided training was absolutely necessary, so that malariologists were the offspring of cross-breeding medicine with biological sciences and hydraulic engineering. The strategy in the struggle against malaria was summarized by Sir Ronald Ross in the well-known remark: “To become an efficient malariologist one must learn to think like a mosquito.”