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Number of Cases of Influenza Over The Age of 65 in The Year 1985 to 1990 The chart gives information about how a number of communities from the age of 65 and above to have contracted influenza during the year 1985 to 1995 in a particular village in the UK.
It can be seen in the graph that on the year 1989 until 1990, a major increase of the disease hit around 20 persons...