The isolation and classification of Tern virus: influenza A-Tern South Africa--1961.
D000818:Animals; D001717:Birds; D004199:Disease Vectors; D009975:Orthomyxoviridae / Q000145:classification* / Q000302:isolation & purification*; D009976:Orthomyxoviridae Infections / Q000662:veterinary; D013019:South Africa