Study to Assess the Effect of ONS Nutridrink® 200 ml on the Recovery of Patients With COVID-19 and Respiratory Support

Inclusion Criteria: * Confirmed new coronavirus infection COVID-19 (based on laboratory and/or computer tomography data); * Need in respiratory support (oxygen insufflation, non-invasive lung ventilation, artificial lung ventilation, as well in a prone position); * Ability to take food spontaneously in the amount of 60% and more of energy and protein needs (possibility of spontaneous food intake will be determined with the three-swallow test; consumed food will be controlled with the "quarter of a plate" method); * The informed consent is signed by a patient for the study enrollment and processing of personal data. Exclusion Criteria: * Diabetes mellitus; * Renal failure; * Hepatic failure; * Systemic disease; * Active cancer; * Poor survival prognosis. * Aggravation of a patient's condition requiring his transfer to enteral feeding and/or parenteral nutrition; * Occurrence of complications requiring surgical interventions; * Patient's transfer for treatment to another inpatient unit; * Complications induced by the product for additional nutrition support (diarrhea, nausea, vomiting); * Withdrawal of the informed consent for the study enrollment and processing of personal data.