Melaleuca alternifolia Cheel  terpinen-4-ol (30–48%), γ-terpinene (10–28%), α-terpinene (5–13%), 1,8-cineole (up to 15%), terpinolene (1.5−5%), p-cymene (0.5–12%), α-pinene (1–6%), and α-terpineol (1.5–8%)  100% inhibition of influenza type A (H1N1) virus at 0.01%; type A (H11N9) virus to tea tree oil vapor caused 100% inhibition   [46]