Here are the referenced studies this article is based on: "Anti-SARS-CoV-2 receptor binding domain antibody evolution after mRNA vaccination" https://www.natu

Here are the referenced studies this article is based on: "Anti-SARS-CoV-2 receptor binding domain antibody evolution after mRNA vaccination" https://www.nature.com/articles/s41586-021-04060-7 https://www.nature.com/articles/s41586-021-04060-7 "Illness characteristics of COVID-19 in children infected with the SARS-CoV-2 Delta variant" https://www.medrxiv.org/content/10.1101/2021.10.06.21264467v1 https://www.medrxiv.org/content/10.1101/2021.10.06.21264467v... >"Few children presented to hospital, and long illness duration was uncommon, with either variant. Interpretation COVID-19 in UK school-aged children due to SARSCoV2 Delta strain B.1.617.2 resembles illness due to the Alpha variant B.1.1.7., with short duration and similar symptom burden."