Doctors have listed the stages of development of coronavirus

Doctors have identified four stages of development of coronavirus, on
the detailed development of each became known from the words of the chief pulmonologist of Russia
Alexander Chuchalina. The expert explained that the duration of the first stage is
7-9 days, it is called viremia, it takes place with signs of normal
colds.

In the next five days, the infection affects
epithelial cells of organs and the development of viral and bacterial
pneumonia. Harmful bacteria accumulate in the respiratory tract. This
stage is the most dangerous, as it lays the probability of a fatal
outcome.

If the disease is still not controlled by physicians, then
cases carries serious complications, it occurs swelling
the affected lung, and it requires a device for lung ventilation
by artificial means. The third stage is crucial if
the spread of infection in the body cannot stop, then comes the fourth
stage.

At the last stage of the disease affects the immune system,
comes immunosuppression, and underlying disease joined by many others,
manifest itself various fungal infections, Pseudomonas aeruginosa, and a number of
other. The fourth stage ends in death, as the body does not
can cope with all the manifested disease.