The video platform said it would now ban any content with claims about COVID-19 vaccines that contradict consensus from local health authorities or the World Health Organization.
YouTube said in a blog post that this would include removing claims that the vaccine will kill people or cause infertility, or that microchips will be implanted in people who receive the vaccine.
A YouTube spokesman told Reuters that general discussions in videos about "broad concerns" over the vaccine would remain on the platform.
console.log("catid body is "+catID);if(catID==120){document.getElementsByClassName("divConnatix")[0].style.display ="none";var script = document.createElement('script'); script.src = 'https://player.anyclip.com/anyclip-widget/lre-widget/prod/v1/src/lre.js'; script.setAttribute('pubname','jpostcom'); script.setAttribute('widgetname','0011r00001lcD1i_12258'); document.getElementsByClassName('divAnyClip')[0].appendChild(script);}else if(catID!=69 && catID!=2){ document.getElementsByClassName("divConnatix")[0].style.display ="none"; var script = document.createElement('script'); script.src = 'https://static.vidazoo.com/basev/vwpt.js'; script.setAttribute('data-widget-id','60fd6becf6393400049e6535'); document.getElementsByClassName('divVidazoo')[0].appendChild(script); }Conspiracy theories and misinformation about the new coronavirus vaccines have proliferated on social media during the pandemic, including through anti-vaccine personalities on YouTube and through viral videos shared across multiple platforms.
Although drugmakers and researchers are working on various treatments, vaccines are at the heart of the long-term fight to stop the new coronavirus, which has killed more than a million people, infected more than 38 million and crippled the global economy.
YouTube says it already removes content that disputes the existence or transmission of COVID-19, promotes medically unsubstantiated methods of treatment, discourages people from seeking medical care or explicitly disputes health authorities' guidance on self-isolation or social distancing.
In its blog post, YouTube said it had removed over 200,000 videos related to dangerous or misleading COVID-19 information since early February.
The company also said it was limiting the spread of COVID-19 related misinformation on the site, including certain borderline videos about COVID-19 vaccines. A spokesman declined to provide examples of such borderline content.
YouTube said it would be announcing more steps in the coming weeks to emphasize authoritative information about COVID-19 vaccines on the site.