What A Flat-Earther Taught Me

Here are the two sides: Fisman vs. Bridle

Headline: Being with unvaccinated people increases COVID-19 risk for those who are vaccinated: modelling study

  • Dr. David Fisman = agree
  • Dr. Byram Bridle = disagree


The two sides in a nutshell

  • (Bridle) Getting vaccinated should be an individual choice.
  • (Fisman) Getting vaccinated is a collective duty.


  • (Fisman) The unvaccinated harm each other and vaccinated people by transmitting the virus.
  • (Bridle) Both the unvaccinated and vaccinated can contract and transmit the virus. 


  • (Fisman) We created a mathematical model to demonstrate how being with unvaccinated people increases COVID-19 risk for those who are vaccinated.
  • (Bridle) Here’s a rebuttal, correcting assumptions and flaws in the study that not only negate the findings, but reverse them.


Direct quotes from both articles

Fisman: “We thought what was missing from that conversation was, what are the rights of vaccinated people to be protected from unvaccinated people?”

Bridle: “(…)the purpose of a vaccine is to protect people from a pathogen; to prevent both the disease and transmission of the causative agent. Such a medical product does not require one to pit people against people.”

Fisman: “With 20% baseline immunity among unvaccinated people(…)” 

“(…)transmission was more readily disrupted within the vaccinated subpopulation, such that risk arose increasingly from interactions with the unvaccinated subpopulation, where transmission continued.”

Bridle: “(Here’s a study) that suggests that immunity among ‘unvaccinated’ people in British Columbia was ~90%. To be conservative, let’s say it is only ~85% across Canada (…) Correcting only this one assumption completely reverses the conclusions of the paper.”

Dig Deeper – Sources:


Leave a Reply

Your email address will not be published. Required fields are marked *