Extended Data Fig. 3: Relative risk of a pneumococcal strain being in each of municipality after 1 year of transmission.
From: Geographical migration and fitness dynamics of Streptococcus pneumoniae
Sequential transmission chains starting in municipalities with (a) <50 people/km2, (b) 50–500 people/km2, or (c) >500 people/km2 across 100,000 samples.