Antivirus APIs target various stages of the virus life cycle, including viral attachment, entry, and replication. These compounds can interfere with viral enzymes, disrupt viral protein synthesis, or enhance host cell immune mechanisms to resist viral infection. As global concern over the impact of emerging viral diseases and epidemics continues, the need for effective antiviral therapies continues to rise. Protheragen provides a full range of antivirus APIs to support global customers' drug development on influenza, HIV, hepatitis B and C, herpes, respiratory syncytial virus, etc.