Another study on lung inflammation in patients with COVID-19 found that the myeloid cells of the airways and the blood of severe patients do not express UBE2C, and the silent expression of UBE2C is related to the recruitment of the lung immune cells and inflammation; the researchers also proposed that the recruitment of myeloid cells leads to the severe inflammation and pathological conditions of COVID-19 patients [36]. Here, UBE2C is linked to inflammation.