How does resistance affect oseltamivirs activity against the influenza virus?
Oseltamivir is an antiviral drug that blocks influenza viruses from spreading in the respiratory tract. The current resistant H1N1 viruses have been found to contain a specific mutation that makes them highly resistant to oseltamivir. This means that oseltamivir would most likely be ineffective for treating or preventing infections caused by these resistant H1N1 strains, although the drug will be effective against other influenza virus infections.
