Fig. 3
From: Quantifying heterogeneous contact patterns in Japan: a social contact survey
Contact matrix within the household and in the community (weekday contact). Colour bars indicate the mean number of contacts. a Non-household contact matrix represents the estimated mean number of contacts per day between respondents (i.e., survey participant) and persons other than their household members. b Household contact matrix represents the estimated mean number of contacts per day between respondents (i.e., survey participants) and their household members. Household is defined as the same unit of living space, and household members are the individuals who share that living space, regardless of blood relationship