title: Unpredictable virus means no one can promise last year's flu season won't happen again.
authors.forename: Steven Ross
authors.initials: SR
authors.lastname: Johnson
mesh_terms: D006801:Humans; D007252:Influenza Vaccines / Q000600:supply & distribution*; D007251:Influenza, Human / Q000517:prevention & control* / Q000821:virology; D011634:Public Health; D014481:United States
chemical_list: D007252:Influenza Vaccines