July 2020: https://www.bmj.com/content/370/bmj.m2815 https://www.bmj.com/content/370/bmj.m2815 Oct 2020: https://www.bbc.com/news/health-54296223 https://www

July 2020: https://www.bmj.com/content/370/bmj.m2815 https://www.bmj.com/content/370/bmj.m2815 Oct 2020: https://www.bbc.com/news/health-54296223 https://www.bbc.com/news/health-54296223 It was absolutely a thing before the vaccines. It started on social media and took a lot of pushing before doctors and researchers started looking at it.