One thing that changed, I hardly ever see people openly sneezing or couching in public anymore. That was the main thing that wearing a mask helped contain.
New study here, or new correlation
https://www.ctvnews.ca/health/coronavirus/being-with-unvaccinated-people-increases-covid-19-risk-for-those-who-are-vaccinated-modelling-study-1.5874632
The research published Monday in the Canadian Medical Association Journal found that vaccinated people who mix with those who are not vaccinated have a significantly greater chance of being infected than those who stick with people who have received the shot.
In contrast, unvaccinated people's risk of contracting COVID-19 drops when they spend time with people who are vaccinated, because they serve as a buffer to transmission, according to the mathematical model used in the study.
Co-author David Fisman, of the University of Toronto's Dalla Lana school of public health, said the message of the study is that the choice to get vaccinated can't be thought of as merely personal.
"You may like to drive your car 200 kilometres an hour and think that's fun, but we don’t allow you to do that on a highway partly because you can kill and injure yourself, but also because you're creating risk for those around you," he said in a recent interview.
Fisman said the idea for study came a few months ago amid the debate around vaccine passports and vaccine mandates.
"We thought what was missing from that conversation was, what are the rights of vaccinated people to be protected from unvaccinated people?" he said.
The conclusion, he said, is that "public health is something you actually have to do collectively."
"What we kind of concluded is that the decision to not be vaccinated — you can't really regard it as a self-regarding risk (because) you're creating risk for other people around you by interacting with them," he said.
It's the same with masks, you protect others more than yourself. And effectiveness, if any, greatly diminishes the less people use them.