Doctor Brags on Social Media About Letting Her 4-YEAR-OLD CHILD Be Used as a Human Guinea Pig for Vaccine Testing Doctor Brags on Social Media About Letting Her 4-YEAR-OLD CHILD Be Used as a Human Guinea Pig for Vaccine Testing October 28, 2021 By Cassandra Fairbanks A doctor is bragging on social media about letting her four-year-old child be used as a human guinea pig for testing the Pfizer-BioNtech…