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, T4likevirus: , T5likevirus: , T7likevirus: , Taupapillomavirus: , Tectiviridae , Tectivirus: , Tenuivirus: , Tepovirus: , Teschovirus: , Tetraparvovirus: , Thetapapillomavirus: , Thetatorquevirus: , Thogotovirus: , Tibrovirus: , Tobamovirus: , Tobravirus: , Togaviridae , Tombusviridae , Tombusvirus: , Topocuvirus: , Torovirus: , Torradovirus: , Tospovirus: , Totiviridae , Totivirus: , Tremovirus: , Trichomonasvirus: , Trichovirus: , Tritimovirus: , Tunalikevirus: , Tungrovirus: , Tupavirus: , Turncurtovirus: , Turriviridae , Twortlikevirus: , Tymovirales , Tymoviridae , Tymovirus: