OREANDA-NEWS  According to Professor Paul Tambay, particles that form during breathing, talking or singing are no more than five micrometers but contain more viral elements than large particles.  

During the experiments, some patients "emitted the most dangerous particles" while talking, said Professor Christine Coleman. In her opinion, this may be due to the fact that people sometimes involuntarily raise their voices during conversations. 

In addition, during the experiment, there were studied methods to reduce the risk of the spread of coronavirus. So, the concentration of dangerous elements can change the distance between people, as well as a certain air circulation, which is created due to the location of furniture and fans, said Professor Tambaya. 

Scientists also called for maintaining the mask regime both indoors and on the streets. 

Earlier it became known that the iota variant of SARS-CoV-2, identified during studies in America, can bespread 15-25 percent faster than previous varieties of coronavirus, and the mortality rate among the elderly from this variant of the virus may exceed the average for other strains.