Figure 4From: How human practices have affected vector-borne diseases in the past: a study of malaria transmission in Alpine valleysEvolution of mortality between 1830 and 1900 in villages situated in the vicinity of the confluence between Arc and Isère rivers. 1: Recurrent flooding of Arc and Gelon rivers consecutive to channelization. 2: Embankment of Isère river completed. 3: Artificial silting in progress. 4: Drainage operations were beginning.Back to article page