I bet you did read the article, probably didn't open the link. There are 37 references in the article that shows the facts, here is links to a few of those references
https://healthfeedback.org/claimreview/video-john-campbell-historical-vaccines-covid-19-misleads-vaccine-safety/
https://healthfeedback.org/claimreview/ivermectin-wasnt-shown-more-effective-than-remdesivir-contrary-to-claim-by-john-campbell/
https://fullfact.org/health/john-campbell-youtube-singapore-children/
https://www.factcheck.org/2021/12/no-credible-evidence-covid-19-mrna-vaccines-dramatically-increase-heart-attack-risk-contrary-to-flawed-abstract/
