An NHK experiment found that micro-droplets emitted while sneezing and coughing and during conversations stay in the air for longer than normal droplets, potentially posing a uniquely dangerous risk for coronavirus infection.
Scientists have so far considered two primary routes for transmitting SARS-CoV-2, the virus that causes COVID-19 disease (coronavirus): contact with an object that has the virus on it, or inhalation of micro-droplets emitted through sneezes and coughs.
Now there is a possible third transmission route that researchers have begun to consider: micro-droplets released from the mouth during conversation.
To avoid sitting in a room with these potentially virus-carrying micro-droplets, you should ensure your space is well-ventilated.
Opening windows, doors and turning on fans could help sweep away these micro-droplets, the scientists believe, because they are so small and light. At least once per hour, you should take steps to ventilate your space, Tateda said. The video was captured as a collaboration between Japan’s NHK broadcasting organization and the Japanese Association for Infectious Diseases.