See the answer in this video by Dr. Chana Davis from Fueled by Science . DP Links: Do the COVID-19 vaccines reduce transmission? References: Outbreak Associated with SARS-CoV-2 B.1.617.2 (Delta) Variant in an Elementary School — Marin County, California, May–June 2021 Pfizer Vaccine Efficacy (Ages 5-11). Vaccines and Related Biological Products Advisory Committee October 26, Read more…