Probability that only 1 of 17 patients would have been infected with an identical strain of B. burgdorferi in a recurrent episode of Lyme disease due to chance alone

Data source for frequency distribution of strain typesProbability of 1 or fewer patients becoming infected with the same strain of B. burgdorferi
Data set 1a (3)0.035
Data set 2a (11)0.011
Data set 3 (even distribution)0.054
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