Yes, I think this is correct. For all childhood vaccines you can check the book "Turtles all the way down: vaccine science and myth". Reading covid-19 vaccines I checked if there were placebo control group. I couldn't find one. For all future vaccines, they will be updated to mRNA vaccines (very ...

Weren’t there double blind placebo controlled trials for the Polio and HPV vaccines?

Virology is also pseudoscience, which is why most vaccines are supposedly created