The World Health Organisation provides data for a number of Health related variables, and once visualised through GIS, we can give a much clearer view of global health issues. This data can provide crucial data for decision makers and aid workers.

Monitoring disease or health can be difficult but there are many ways in which Geographical Information Systems (GIS) can enable better understanding of this data.

GIS allows us to conduct spatial analysis which can show trends and patterns in the data which may not be visible in a table or a graph. An example of this is analysis of a London cholera outbreak where the locations of deaths were mapped in relation to water pumps.

Another example of using GIS in Health is mapping life expectancy by country (as shown in the map above).