THE STANDARD By Reuters | December 23rd 2020 at 09:35:37 GMT +0300 A video featuring a university professor addressing a crowd at Speakers’ Corner, London, includes various false and misleading claims. The speaker suggests that masks are causing brain damage in police officers and that COVID-19 will disappear by April, both of which are claims contradicted by the available evidence. She also alleges that a trial of a new COVID-19 vaccine “made everybody positive for HIV”. However, researchers explained that while antibodies generated by the vaccine were found to lead to some false-positive HIV test results, follow up tests showed no HIV virus was present.