China’s public health bureau recently published a chart showing how important it is for everyone to wear masks in public because of the COVID-19 pandemic.
If you have not seen the chart, here is a simple translation:
ONE: The risk of infection is 100% when a healthy person without a mask is exposed to an infected person without a mask.
TWO: When a healthy person wearing a mask is exposed to an infected person without a mask, the risk factor is 70%.
THREE: When an infected person is wearing a mask and the healthy one isn’t, the risk factor is 5%
FOUR: When both the healthy and infected people wear masks, the risk factor is 1.5%.
Without the ability to test people weekly to discover who is immune because they carry the antibodies that protect them from the virus, or to learn if they are infected or healthy, individuals…
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