Social media fact check: March 13, 2021

Speaker of the House Nancy Pelosi, D-Calif., finishes the vote March 10 to approve a landmark $1.9 trillion COVID-19 relief bill, at the Capitol. Stories circulating online incorrectly assert the $1.9 trillion COVID-19 relief bill awards a $25 million bonus to members of the House of Representatives. (AP Photo/J. Scott Applewhite)

A restaurant worker holds his face mask March 5 in Biloxi, Miss. Stories circulating online incorrectly assert a new study from the U.S. Centers for Disease Control and Prevention found mask mandates have a negligible impact on coronavirus numbers. Those claims distort the findings, according to CDC scientist Gery Guy Jr., the study’s lead author. (AP Photo/Rogelio V. Solis)

A woman receives a COVID-19 vaccination March 10 in Sandy, Utah. Stories circulating online incorrectly assert a study by scientists at Sloan Kettering discovered Messenger RNA inactivates tumor suppressing proteins, meaning that COVID-19 mRNA vaccines can cause cancer. (AP Photo/Rick Bowmer)

Gorillas rest in their enclosure June 11, 2020, before the reopening of the San Diego Zoo. Stories circulating online incorrectly assert great apes at the San Diego Zoo are taking doses of the coronavirus vaccine that could have been used for veterans and senior citizens. (AP Photo/Gregory Bull)

Rifles are displayed Feb. 19 in a gun shop in Salem, Ore. Stories circulating online incorrectly assert proposed federal gun legislation expanding background checks for firearms would create a “national registration of firearms” and put gun owners in jail for transferring or handing their gun to someone, even if they are in a dangerous situation. (AP Photo/Andrew Selsky)

A roundup of some of the most popular but completely untrue stories and visuals of the week. None of these are legit, even though they were shared widely on social media. The Associated Press checked them out. Here are the facts: