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4 stages of coronavirus infection

Head of the Department of the University. Pirogova A. Chuchalin is one of the best experts in Russia on lung diseases. The academician told what symptoms you need to seek help from doctors in order to prevent complications of the coronavirus.

“COVID-19 has 4 stages of development, – says Alexander Grigoryevich, – As a rule, a person does not know where and when he got infected. He has no signs of coronavirus infection, but this is already the first stage of the disease. The asymptomatic course is understandable: viral particles are less than 5 microns in size, so the immune system does not recognize them. The incubation period lasts about a week.

According to the academician, the second stage of the disease begins in 5-7 days. Many patients at this stage are already recovering. If the infection progresses, there are signs of a cold: nasal congestion, runny nose, sore throat. Additional symptoms may appear - soreness in the muscles, fever, general weakness. The second stage also lasts about a week.

Further, the coronavirus infection can develop according to two scenarios. With strong immunity, the patient recovers. With a burdened history (the presence of chronic diseases), the third stage begins, which doctors call viral pneumonia.

The main symptoms of pneumonia are a dry obsessive cough and shortness of breath. Self-medication is no longer possible, as there is a danger of death. “ The further fate of the patient already depends on the professionalism of doctors and the level of the body's defenses,” the expert concluded.