Timing of the Availability and Administration of Influenza Vaccine Through the Vaccines for Children Program
ABSTRACT influenza vaccine must be distributed and administered each year during a limited time interval. To our knowledge, no previous studies have simultaneously evaluated the delivery and administration of privately purchased vaccines and influenza vaccines acquired through the Vaccines for Children (VFC) program.
a prospective, observational study was conducted in US outpatient pediatric offices, tracking all influenza vaccinations during the season by age group, first or second vaccination, the child's need for 1 or 2 doses, type of vaccine, and VFC status.
a total of 42 and 84 practices completed the study in 2007 to 2008 and 2008 to 2009, respectively. In both seasons, initial shipments of VFC influenza vaccine generally arrived 4 to 5 weeks later than non-VFC shipments; VFC vaccine administration also started 1 month later than administration of privately purchased vaccine. Vaccine administration peaked in early November and late October in years 1 and 2, respectively, and declined rapidly thereafter. Overall, approximately one-half of all children who required 2 doses of vaccine were estimated to have received 2 doses. In both years, 2-dose compliance rates in the VFC population were 17% to 19% lower than those in the non-VFC population, possibly resulting from the VFC population's shorter time interval for second dose receipt.
the VFC program is critical to ensuring financially vulnerable children have access to vaccination. Manufacturers, distributors, and public health officials should deliver VFC influenza vaccine to providers as quickly as possible. Pediatric healthcare providers should increase efforts to vaccinate all populations, especially the VFC population, in later months.
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ABSTRACT: The Advisory Committee on Immunization Practices (ACIP) recommends that certain children under 9 years of age receive two influenza vaccine doses in a season for optimal protection. Recent data indicate that many of these children fail to receive one or both of these needed doses. Contributing factors to under-vaccination of this population remain unclear. Caregivers of children aged 6 months-8 years requiring two influenza vaccine doses in the 2010-2011 season were identified from households enrolled in four urban Head Start programs. Recruitment and survey administration were conducted between March and June 2011. The impact of caregiver, provider, and practice-based factors on influenza vaccine receipt was assessed using bivariate and multivariable logistic regression analyses. Caregivers (n = 128) were predominantly mothers, Latina, Spanish-speaking, and non-U.S. born. Few children received one (31 %) or both (7 %) influenza vaccine doses. Caregivers who discussed influenza vaccination with providers were more likely to know their child needed two doses (55 vs. 35 %, p < 0.05) and have a fully vaccinated child (11 vs. 0 %, p < 0.05). Among caregivers whose child received the first dose, those who reported being told when to return for the second dose were also more likely to have a fully vaccinated child (35 vs. 0 %, p = 0.05). Belief in influenza vaccine effectiveness was positively associated with vaccination (p < 0.001), while safety concerns were negatively associated (p < 0.05). This study highlights the importance of provider-family communication about the two-dose regimen as well as influenza vaccine effectiveness and safety.Journal of Community Health 08/2014; 40(2). DOI:10.1007/s10900-014-9921-z · 1.28 Impact Factor
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ABSTRACT: To determine whether provision of vaccine-health-literacy-promoting information in text message vaccine reminders improves receipt and timeliness of the second dose of influenza vaccine within a season for children in need of 2 doses. During the 2012-2013 season, families of eligible 6-month through 8-year-old children were recruited at the time of their first influenza vaccination from 3 community clinics in New York City. Children (n = 660) were randomly assigned to "educational" text message, "conventional" text message, and "written reminder-only" arms. At enrollment, all arms received a written reminder with next dose due date. Conventional messages included second dose due date and clinic walk-in hours. Educational messages added information regarding the need for a timely second dose. Receipt of second dose by April 30 was assessed by using χ(2) tests. Timeliness was assessed by receipt of second dose by 2 weeks after due date (day 42) using χ(2) and over time using a Kaplan-Meier analysis. Most families were Latino and publicly insured with no significant between-arm differences between groups. Children in the educational arm were more likely to receive a second dose by April 30 (72.7%) versus conventional (66.7%) versus written reminder-only arm (57.1%; P = .003). They also had more timely receipt by day 42 (P < .001) and over time (P < .001). In this low-income, urban, minority population, embedding health literacy information improved the effectiveness of text message reminders in promoting timely delivery of a second dose of influenza vaccine, compared with conventional text messages and written reminder only. Copyright © 2015 by the American Academy of Pediatrics.Pediatrics 01/2015; 135(1):e83-91. DOI:10.1542/peds.2014-2475 · 5.30 Impact Factor
American Journal of Preventive Medicine 04/2015; 48(4). DOI:10.1016/j.amepre.2014.10.023 · 4.28 Impact Factor