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A: Average number of contacts when the COVID-19 case was an admitted patient (March to August 2020). B: Average number of contacts when the COVID-19 case was a health care worker (March to August 2020). C: Average number of contacts when the COVID-19 case was admitted in a COVID-19 area (March to August 2020). D: Average number of contacts when the COVID-19 case was admitted in a non–COVID-19 area (March to August 2020).
