Head of the Department of the University. A. Pirogova Chuchalin is one of the best experts in Russia on lung diseases. The academician told about the symptoms for which you need to seek help from doctors in order to prevent complications of the coronavirus.
“COVID-19 has 4 stages of development, - says Alexander Grigorievich, - As a rule, a person does not know where and when he became 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 are already recovering at this stage. If the infection progresses, there are signs of a cold: nasal congestion, runny nose, sore throat. Additional symptoms may appear - muscle soreness, fever, general weakness. The second stage also lasts about a week.
Further coronavirus infection can develop in 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 dry, obsessive cough and shortness of breath. Self-medication can no longer be dealt with, since there is a danger of death. " The further fate of the patient already depends on the professionalism of the doctors and the level of the body's defenses," - the expert concluded. [nine].