There is an excellent article in The Atlantic on this topic. I have to wonder, when the breakthroughs become more widespread, as they inevitably will once COVID-19 vaccination becomes more widespread, if people will start to realize that other vaccinations (measles, mumps, etc.) also leave a certain number of people vulnerable even after vaccination and that degree of risk is variable for each individual. Will this help to dampen vaccination-resistance or enhance it?
What Vaccine Efficacy Really Means
Missouri State of Mind 