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It persists for years: how long will immunity to COVID-19 last?

The first photo shows a CT scan of a patient with perfectly healthy lungs. As a standard, as it were. But under the cut …
And this is how the lungs of a person with severe pneumonia caused by COVID-19 look like on CT. In general, there are 1-4 degrees of damage, when 2 degrees – about 50% of the lungs are affected, and 4 degrees – 90%. Depending on the genotype of a person, from 2 to 4 degrees, the lungs can burn out in just a couple of days, or they may not suffer at all. It is noted that with a grade 3 lesion, a person can be vigorous and feel light, but at the same time another person with grade 1 (25%) suffocates and lies down with a corpse. So it goes.

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