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Map labeled 1947. Colorations on map of different polio outbreaks. Graph fades as doctor talks of family. Picture graph labeled top down Aunt, Father, Mother, Robert age 18 months, Christopher age 5 with respectable pictures on the left. Speaker says it is the chronology of this doctor’s household. Begins to move left to show symptoms of children and then mother and father with fever and lethargy. Graph begins to move right to show father’s symptoms. Graph stills on retention of urine. Graph moves right again to show fever developing for the aunt.