title: Pandemic influenza: still a threat.
authors: Dallas County Health and Human Services Department, USA.
authors: John T
authors: JT
authors: Carlo
mesh_terms: D004189:Disaster Planning; D004196:Disease Outbreaks / Q000517:prevention & control*; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology* / Q000517:prevention & control; D011159:Population Surveillance; D013781:Texas / Q000453:epidemiology; D014481:United States / Q000453:epidemiology; D014611:Vaccination