The study is aimed at assessing the role of the activity of high-risk markers of thrombotic events (MCP-1, MIP1α, IP-10, phosphatedylserine, calreticulin) on the development of thrombotic complications in patients with COVID -19.

The study is aimed at assessing the role of the activity of high-risk markers for thrombotic events (monocytic chemoattractant protein 1 (MCP-1), macrophage inflammatory protein 1α (MIP1α), interferon-induced gamma protein-10 (IP-10), platelet apoptosis markers (phosphatedylserine, calreticulin) on the development of thrombotic complications in patients with COVID -19.

The study will include 150 patients of similar age, gender, and ethnicity, and they will be divided into three groups: Group I: 50 patients with confirmed coronavirus infection without thrombotic complications; Group II: 50 patients with confirmed coronavirus infection with thrombotic complications confirmed by ultrasonography without the use of pharmacomechanical prophylaxis of VTE; Group III: 50 patients with confirmed coronavirus infection with ultrasound-confirmed thrombosis of the deep and saphenous veins of the lower extremities using pharmacomechanical prophylaxis of VTE

Inclusion Criteria:

• men or women over 18 years of age with a new coronavirus infection, confirmed by polymerase chain reaction (PCR) studies and chest CT.

Exclusion Criteria:

• men or women under 18 years of age; active cancer or a remission period of less than 5 years; decompensated somatic pathology; pregnancy or breastfeeding in women.