Interferon
Interferons (IFNs) are broad-spectrum antivirals, primarily used in the treatment of hepatitis B. In SARS-CoV patients, compared to ribavirin or interferon (IFN) alone, the benefit was seen on IFN-α + high-dose corticosteroid group.[20] Other observational studies also support these findings and the combined use of IFN-α and corticosteroid (corticosteroid arm n = 13; corticosteroid + IFN-α arm n = 9) showed less disease-associated oxygen saturation impairment.[21] For the treatment of 2019-nCoV (7), IFN-α (5 million U bid inh) is recommended along with lopinavir + ritonavir combination.[17]