Examine the mask to find out Covid-19, Kerala passes the test

The whole world is in fear of the spread of the Covid epidemic. Many tests are conducted daily in the country to detect the disease. It is important to know if a person has Covid infection or not. However, one can also find out whether one is infected with Covid by examining the mask he wears or not.The experimental method of diagnosing the disease by examining the mask worn by a person suffering from Covid is going on internationally. Mahatma Gandhi University from Kerala is also participating in this.