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Table 1 Average duration of infection (in months) and infectivity (scaled between a high value of 1 and low of 0) calculated over the whole population at baseline and following 3 and 10 rounds of MDA, for each of the 3 endemic settings

From: Possible changes in the transmissibility of trachoma following MDA and transmission reduction: implications for the GET2020 goals

  Hypoendemic Mesoendemic Hyperendemic
  Duration Infectivity Duration Infectivity Duration Infectivity
Initially 4.42 0.92 2.95 0.60 2.81 0.19
Post 3 MDAs 4.87 0.93 3.23 0.66 2.82 0.23
Post 10 MDAs 5.86 0.95 3.45 0.71 2.86 0.29