title: Keeping track of swine influenza viruses.
authors.forename: Les
authors.initials: L
authors.lastname: Sims
mesh_terms: D000818:Animals; D005260:Female; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D008297:Male; D009976:Orthomyxoviridae Infections / Q000662:veterinary*; D013553:Swine Diseases / Q000453:epidemiology*