U.S. Surgeon General Vivek Murthy raised the alarm on July 15 over a growing wave of misinformation about Covid-19 and related vaccines that threatens efforts to quell the pandemic and save lives, urging technology companies and others to act.

Facebook Inc. will remove false claims about Covid-19 vaccines that have been debunked by public health experts, following a similar announcement by Alphabet Inc.’s YouTube in October 2020.

Facebook Inc. removed 7 million posts in second-quarter 2020 for sharing false information about the novel coronavirus, including content that promoted fake preventative measures and exaggerated cures.