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Illustrations of the WTW algorithm: transmission maps and estimated probability for each transmission of influenza between cases during outbreaks of influenza in two nursing homes. (A) Transmission map in nursing home A. (B) Estimated probability for each transmission (at dates displayed in figure 4A) in nursing home A. (C) Transmission map in nursing home B. (D) Estimated probability for each transmission (at dates displayed in figure 4C) in nursing home B.
