Facebook and Instagram have removed more than 20 million posts containing false information related to the coronavirus pandemic since the outbreak of the epidemic was announced until last June. 

“When it comes to the Covid-19 pandemic, things are evolving more quickly, so it makes it more difficult to identify and measure the spread,” Facebook Vice President of Integrity Jay Rosen said during a press conference.

This action came about a month after the White House announced that about 12 people were responsible for creating 65 percent of misinformation about the vaccine on social media platforms, and that all of them remained active on the social networking giant.

A White House spokesperson said in statements to CNN Wednesday, "In the midst of the pandemic, honesty and transparency about the work that must be done to protect Public health is absolutely vital.”

"But Facebook still refuses to be clear about the amount of misinformation that is being actively circulated and promoted," he added.

Many political elites, including US President Joe Biden, have criticized social networks for failing to effectively combat the spread of COVID-19 and misinformation about vaccines.

Facebook said it had more than 65 criteria for false claims about the coronavirus and vaccines that would prompt it to remove posts from its platforms.

The company recently added to this list false claims that vaccines cause Alzheimer's disease and that being around vaccinated people may cause secondary side effects to others.

The social network pointed out that it removed more than 3,000 accounts, pages and groups for violating these standards, stressing that it had subjected more than 190 million posts related to Covid-19 to scrutiny after third-party partners that checked the facts classified them as false or incomplete.