He explained that "it happens after severe pneumonia, with often exacerbating chronic obstructive pulmonary disease, with interstitial lung diseases."

As the doctor notes, "people undergo structural changes that require a long recovery."

The pulmonologist said that “breathing exercises and a strengthening regimen are not contraindicated, they can be performed,” but, according to Karabinenko, “everything will depend on the individual ability of every person who has had COVID-19 to structurally repair a damaged organ.”

“How to improve it? It can only happen over time, ”he said.

Karabinenko added that after swine flu N1H1 "there were fibrotic lesions that lasted for one and a half to two years." According to the doctor, "some have not yet recovered their lungs."

Earlier it was reported that in Russia another 5,409 people were discharged per day after recovering from coronavirus infection. The total number of people treated with COVID-19 reached 280,050.

Aleksey Agranovsky, professor at the Department of Virology, Faculty of Biology, Moscow State University, in an interview with the FAN, assessed the need to take precautions after removing the restrictions imposed due to coronavirus.