Figure 2.
Mechanism of Quinine Sulfate as an antiviral agent. Reproduced from Nugraha RV, Ridwansyah H, Ghozali M, Khairani AF, Atik N. Traditional herbal medicine candidates as complementary treatments for COVID-19: a review of their mechanisms, pros and cons. Evid Based Complement Altern Med. 2020;2020:1–12. doi:10.1155/2020/2560645.51
Abbreviations: ACE-2, Angiotensin Converting Enzyme-2; INF-α, Interferon-α; PRR, Pattern Recognition Receptor; RIG-I, Retinoic acid-Inducible Gene I; PKA, Protein Kinase A.