A new study showed that we might have had the wrong advice since the beginning of the pandemic.

    Since the beginning of the pandemic, the rule was to keep a social distancing to prevent the spread of Covid-19 but a new study showed that 2 meters might not be enough to prevent the spread of this sickness and that the mask can reduce the chances of spreading of approximately 67 percent. It was made by researchers of McGill University, Universite de Sherbrooke, Texas A&M University, and Northern Illinois University with a computer program that simulated coughing dynamics.

    This rule was made back in the 1800s when a German scientist named Carl Flugge found that most of the droplets expelled from the nose and mouth would fall to the ground within 3 to 6 feet of the person with an infection.

    Lydia Bourouiba Ph.D., director of the Fluid Dynamics of Disease Transmission Laboratory at MIT and her colleagues published in the medical BMJ Trusted Source that there are many situations where 6 feet isn’t enough to keep your risk low.

    Lydia Bourouiba has researched the dynamics of exhalation and found that exhalations cause gaseous clouds that can travel up to 27 feet ( 8.2 meters ) and that peak exhalation speed can reach 33 to 100 feet per second ( 36 km/h and 110 km/h). 

    According to this study, we should still be careful to keep a certain distance from people and wear our masks when it’s said to.