[jellicle]

> vaccines are not required to go through double blind studies

Of course they are. So much vaccine misinformation in the world.

https://www.cdc.gov/flu/vaccines-work/effectivenessqa.htm

[masonic]

That's specific to flu. The HPV vaccines don't use a similar mechanism.

[jellicle]

Of course they do. So much vaccine misinformation in the world.