This Gel With QR Code Can Accurately Identify Covid in Hundreds of People at Once

Researchers have developed a hydroalcoholic gel with a QR code that enables people to access a test that assesses their ability to identify the smell of the product and eight symptoms of Covid, instantly evaluating the risk of having the deadly respiratory disease.

from Top Buzz News- News18.com https://ift.tt/3aOqEk7