Fig. 1
From: Community transmission of SARS-CoV-2 during the Delta wave in New York City
Emergence of the Delta variant and contact patterns in NYC. A Percentage of SARS-CoV-2 variants in NYC from May 1 2021 to September 25 2021. The ancestral virus strain is classified as part of “Others”. Data were obtained from the NYC DOHMH public repository (https://github.com/nychealth/coronavirus-data/tree/master/variants). B The contact mixing matrix showing the total number of reported contacts among age groups during the study period. C, D Age distributions of index cases and self-reported contacts (solid lines). The age distribution of NYC residents is shown by pink bars