If your only tool is meta-reviews of RCT studies, then condoms don't work either:
https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD...
https://jech.bmj.com/content/65/2/100
If your only tool is meta-reviews of RCT studies, then condoms don't work either:
https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD...
https://jech.bmj.com/content/65/2/100