AFP's fact-check service debunks misinformation spread online. Here are some of our recent articles about inaccurate claims in the United States: A video from a Texas doctor warning against Covid-19 immunizations and touting drugs he says can treat the disease has been shared tens of thousands of times on social media. But medical experts say the physician's claims about the safety and efficacy of the widely-used vaccines are false, and medications he advocates are not recommended by health authorities. Social media posts claim that Texas's "Operation Lone Star" is aimed at completing former US president Donald Trump's controversial Mexico border wall project, which his successor has moved to end. This is false; officials say the operation does not include wall construction, and announcements on it do not mention border barrier work. Facebook ads viewed more than 100,000 times claim that a keto diet pill is endorsed by every judge on the long-running business reality show "Shark Tank." This is false; one of the judges called the ads "fake" and said neither she nor the other panelists endorse such pills, which have never been on the program and are the latest keto-related deception warned against by the show and its celebrity investors. 1. 2. 3. afp