You have no doubt seen plenty of people in public with their mask pulled down so it only covers their mouth, leaving their nose exposed.
New research suggests this defeats the point of wearing a mask even more than you might think.
Unfortunately, just like the nose is better for breathing, the nose also appears to be better at spreading COVID-19.
Here are some dos and don'ts when it comes to wearing a mask, explained by some of history's most famous paintings.
A study published in the journal Cell mapped locations in the respiratory tract where the COVID-19 virus most quickly invades, multiplies and spreads.
They found the cells that line the nose were significantly more likely to become infected and shed virus compared to the throat or lungs.
There is growing interest in wearing face shields either in combination with or in place of a face covering. »
