We’re already used to see each other with face masks while passing by on the street or in the park, but what does science have to say about this? Is that truly necessary?
cientists have already learned a lot about the SARS-CoV-2 Virus since the beginning of the global pandemic, and now they know that the surfaces are not such an important factor in the spread of the disease and that the over disinfection is not necessary and is a waste of time and spending resources.
However, we also know that the virus is primarily spreading through aerosols, small particles which remain in the air for some time, oppose to the big droplets which are expelled from us through sneezing and coughing and quickly fall on the ground. This means that staying outside is much safer than being in a closed space, says Jose Luis Jimenez, leading aerosol expert in the University of Colorado. That is why we must wear masks in closed spaces.
