A roundup of some of the most popular but completely untrue stories and visuals of the week.

ClaimThe Pfizer coronavirus vaccine is made up of 99.9% graphene oxide, a toxic compound.

The factsGraphene oxide is not among the ingredients found in Pfizer's COVID-19 vaccine, despite alarmist claims to the contrary on social media.Videos spreading widely on Instagram and Twitter on Thursday touted a report from Spain that allegedly claimed to find graphene oxide — a material made by oxidizing graphite — in a vial of the Pfizer shot.“There's no other reason for this to be in here, except to murder people,” said a woman in one of the videos. In reality, there's no graphene oxide in the Pfizer vaccine, according to the ingredient list and Kit Longley, senior manager of science media relations at Pfizer.

ClaimThe delta variant of the coronavirus is fake.

The factsA widely circulating Facebook post denying the existence of the coronavirus delta variant ignores science and the reality that the highly contagious variant has spread rapidly across the globe.The post is a meme featuring former President Donald Trump holding up an executive order he signed in 2017. In place of the executive order text are the words, “The Delta Variant Is Fake News.” Commenters on the post accused Democrats of making up the delta variant to “keep the pot stirred up” and “keep everyone living in fear.”In fact, nonpartisan scientists and health officials worldwide have acknowledged the existence of the delta variant, a version of the virus that experts say spreads more easily than other variants because of mutations that make it better at latching onto cells in our bodies.

ClaimPhoto shows President Joe Biden kneeling down to the Israeli president, “pledging unconditional support to Israel.”

The factsMultiple media outlets wrote about the photo, which actually shows Biden kneeling before Rivka Ravitz, chief of staff for the Israeli president, after learning she had 12 children. The interaction happened at a June 28 meeting between Biden and Israeli President Reuven Rivlin at the White House.At the meeting, Biden assured Rivlin that he will not tolerate a nuclear Iran, The Associated Press reported. A photo of Biden kneeling during the meeting with Rivlin and Ravitz circulated on social media with a false caption. “Biden Kneels Before Israeli President; Pledges Unconditional Support to Israel,” states an Instagram post that misrepresented the photo. The false post also circulated on Facebook. Haim Zach, a press photographer for the Israeli government, took the photo.Zach told the AP in an email that Ravitz is an ultra-Orthodox Jew and when Biden reached out to shake her hand, Rivlin explained to Biden that she doesn't shake hands with men, adding that she's a mother of 12. Zach said Biden then knelt and told Ravitz that as a Catholic man he wanted to show his admiration to her as a mother of 12.

ClaimPlayers on the U.S. women's national soccer team “turned their backs” on a World War II veteran playing the national anthem at a game Monday.

The factsBefore the United States defeated Mexico on Monday during the women's final match before the Olympics, the U.S. players turned to face an American flag located near the stadium's scoreboard during the playing of “The Star-Spangled Banner.”Following the match, false posts circulated on social media claiming members of the team turned their backs on World War II veteran Pete DuPré as he played his rendition of the national anthem on a harmonica. Players on Mexico's national team also turned to face their flag located near the scoreboard at the Pratt & Whitney Stadium at Rentschler Field in East Hartford, Conn., during the playing of their national anthem.“Several members of the U.S. womens national soccer team turned their backs on a 98 year old World War 2 veteran as he played the national anthem on his harmonica,” a Facebook user wrote, in a now-deleted post. The false claim also circulated widely on Twitter, Instagram and YouTube.Several media outlets also wrote about the false claim. “Not true. No one turned their back on WWII Veteran Pete DuPré during tonight's anthem,” the U.S. soccer communications team tweeted on Monday night. “Some USWNT players were simply looking at the flag on a pole in one end of the stadium. The players all love Pete, thanked him individually after the game and signed a ball for him.”

ClaimA tweet by Victory News Network shows that 4th-place runner Rebecca Washington is set to replace Sha'Carri Richardson on the U.S. Olympic team. The Mormon athlete says she hopes to help inspire the nation's children to say “no” to drugs.

The factsVictory News Network posts parody on social media. The 4th place runner in the Olympic trials for the 100-meter race is Jenna Prandini, and she will be Richardson's replacement on the U.S. Olympic Track and Field team. On July 2, the U.S. Anti-Doping Agency announced Richardson had accepted a one-month suspension after testing positive for marijuana, The Associated Press reported. Her win in the Olympic trials for the 100-meter race was also disqualified, and her name was left off the Olympic roster released Tuesday by USA Track and Field.Following the news, a tweet from parody account Victory News Network showed split screen photos of Richardson and Prandini. “4th place runner Rebecca Washington is set to replace Sha'Carri Richardson on the U.S. Olympic team. The Mormon athlete says she hopes to help inspire the nation's children to say “no” to drugs,” reads the tweet. The misleading post was picked up by social media users on Twitter, Facebook and Instagram, who framed it as presenting accurate information.After the tweet gained traction on social media, Victory News Network clarified that none of what it posts is real. “This is a parody account,” Victory News Network posted on Twitter on Monday. “We write funny fake news. If you see someone taking one of our made-up stories way too seriously, please let them know it's a joke.”