Fig. 4: Patterns of SARS-CoV-2 transmission between age groups in WA.
From: Fine-scale patterns of SARS-CoV-2 spread from identical pathogen sequences
a, RR of observing pairs of identical sequences in two age groups as a function of the RR of contact between these age groups. b, Impact of the spatial scale on the RR of observing pairs of identical sequences in the 0–9 year and other age groups. We display similar plots for the other age groups in Extended Data Fig. 7. c, RR of observing identical sequences between two age groups across all pairs of sequences, only pairs in different postcodes and only pairs in different counties. d, Proportion of pairs of identical sequences observed in age groups A and B that were first collected in age group A across different epidemic waves (heat maps). The dot plots depict the earliness scores of age group A across epidemic waves. In a and b, the vertical segments correspond to the 95% subsampling CIs. In d, the vertical segments correspond to the 95% binomial CIs. In d, the heat maps represent symmetric matrices P = (pi,j) characterized by pi,j + pj,i = 1.
