GPT and influenza: headache 8, abdominal pain 4, nausea 4, diarrhea 3, dyspepsia 3, ageusia 3, alanine aminotransferase increased 3, blood alkaline phosphatase increased 3, gamma-glutamyl transferase increased 3, rash 3, influenza 2, nasopharyngitis 2, fatigue 2, flatulence 1