The COVID vaccines do not contain any kind of microchip or digital tracker. Even the world’s tiniest microchip is way too big to go through a syringe.

SOURCE:
https://www.mayoclinichealthsystem.org/hometown-health/featured-topic/covid-19-vaccine-myths-debunked (Mayo Clinic)
https://www.uclahealth.org/u-magazine/what-s-in-that-covid-19-vaccine (UCLA Health)

Updated 12/12/2022