Fig 5.

Infectiousness analysis: Secondary attack rates of household contacts when children, adolescents and adults were index cases (top), as well as odds ratios (OR) for SARS-CoV-2-infection when children vs adults, adolescents vs adults, or combined 0–19 year olds vs adults were index cases; wild-type, alpha variant, delta variant (bottom). To better visualize the point estimates of SAR 95% confidence intervals are omitted. A (left): all included studies, B (right): Danish study only [70]. Red bars are statistically significant. Note: HHC: household contact, IC: index case, NV: non-vaccinated, V: vaccinated.