FILE - People wearing face masks shop at a Chinese supermarket amid the coronavirus outbreak on April 20, 2020 in New York City. PROVIDENCE, R.I. (AP) - As the world races to find a vaccine and a treatment for COVID-19, there is seemingly no antidote in sight to the burgeoning outbreak of coronavirus conspiracy theories, hoaxes, anti-mask myths and sham cures.The phenomenon, unfolding largely on social media, escalated this week when President Donald Trump retweeted a false video about an anti-malaria drug being a cure for the virus and it was revealed that Russian intelligence is spreading disinformation about the crisis through English-language websites.RELATED: Doctor demonstrates how face mask blocks respiratory droplets from spreadingE.