title: Evaluating the most effective distribution strategies to assure administration of pandemic H1N1 influenza vaccine to New York State children and adolescents: evaluation using the New York State Immunization Information System.
abstract: OBJECTIVE
  To examine differences in H1N1 influenza vaccine distribution strategies that may impact the ability to rapidly administer vaccine during a pandemic or public health emergency.
  
  
  METHODS
  Retrospective evaluation of immunization data in the New York State Immunization Information System (NYSIIS).
  
  
  METHODS
  Analysis of existing NYSIIS data.
  
  
  METHODS
  Children and adolescents younger than 19 years for whom information on at least 1 H1N1 influenza vaccine was present in NYSIIS.
  
  
  METHODS
  Median time to administer vaccines to children and adolescents younger than 19 years by December 31, 2009, by county; venue of H1N1 vaccine administration (local health department [LHD] or private medical provider); comparison of immunization-seeking behavior for routine childhood vaccinations and H1N1 vaccine.
  
  
  RESULTS
  A total of 459 189 first or only doses of H1N1 influenza vaccine were recorded in NYSIIS as being administered to New York State, outside of New York City, children aged less than 19 years, between October 2, 2009, and December 31, 2009. Overall, LHD administered 31% of H1N1 vaccine doses; in counties having population less than 100,000, LHD administered 63% of H1N1 doses compared with 23% in counties having population more than 100,000. Time to median administration was faster for LHD in smaller counties and similar for LHD and private medical providers in larger counties. Children who always received routine childhood immunizations either within or outside of their county of residence often had the same practice for H1N1 vaccine, with 85% of children following these patterns. Children who did not follow these patterns were more likely to receive H1N1 influenza vaccine through LHD.
  
  
  CONCLUSIONS
  Local health departments were able to rapidly administer large quantities of H1N1 influenza vaccine, and patterns of health care seeking relying on increased use of LHD needs to be further studied for future public health emergency planning.
authors.affiliation: Office of Public Health (Drs Bednarczyk and Birkhead), Bureau of Immunization (Mr Flynn, Mss DuVall, Meldrum, and Santilli and Drs Easton, Sharma, and Blog), Division of Epidemiology (Dr Blog), and Emerging Infections Program (Dr Zansky), New York State Department of Health, Albany, New York; and Department of Epidemiology and Biostatistics (Drs McNutt and Birkhead), School of Public Health, University at Albany, Rensselaer, New York.
authors.forename: Robert A
authors.initials: RA
authors.lastname: Bednarczyk
authors.forename: Sarah
authors.initials: S
authors.lastname: DuVall
authors.forename: Megan D
authors.initials: MD
authors.lastname: Meldrum
authors.forename: Michael K
authors.initials: MK
authors.lastname: Flynn
authors.forename: Loretta A
authors.initials: LA
authors.lastname: Santilli
authors.forename: Delia E
authors.initials: DE
authors.lastname: Easton
authors.forename: Priya
authors.initials: P
authors.lastname: Sharma
authors.forename: Debra S
authors.initials: DS
authors.lastname: Blog
authors.forename: Shelley M
authors.initials: SM
authors.lastname: Zansky
authors.forename: Louise-Anne
authors.initials: LA
authors.lastname: McNutt
authors.forename: Guthrie S
authors.initials: GS
authors.lastname: Birkhead
mesh_terms: D000293:Adolescent; D002648:Child; D017598:Efficiency, Organizational; D063005:Health Information Systems; D006801:Humans; D017589:Immunization Programs / Q000458:organization & administration*; D053118:Influenza A Virus, H1N1 Subtype / Q000276:immunology*; D007252:Influenza Vaccines / Q000600:supply & distribution*; D007251:Influenza, Human / Q000517:prevention & control*; D009518:New York; D058873:Pandemics / Q000517:prevention & control*; D015397:Program Evaluation; D015980:Public Health Practice; D012189:Retrospective Studies
chemical_list: D007252:Influenza Vaccines