गोबां बोसोर फारियै जायफोरा इनफ्लुयेनजा भाइरास जाफिननाय होबथानाय खामानि - मावनाय मोनब्रै एन्टिभाइरेल मुलैफोरा मोनथावना जाबोबाय ।
For several years four antiviral drugs that act by preventing influenza virus replication have been available .