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Effect of a national vaccine shortage on vaccine coverage for American Indian/Alaska Native children
Amy V Groom1, James E Cheek, Ralph T Bryan
1OMHD/OSI/OD, Centers for Disease Control and Prevention, c/o Indian Health Service, Division of Epidemiology and Disease Prevention, 5300 Homestead Rd NE, Albuquerque, NM 87110, USA. rrb2@cdc.gov
Insights
National vaccine shortages significantly impacted diphtheria, tetanus toxoids, and acellular pertussis (DTaP) vaccine coverage for American Indian/Alaska Native children. DTaP4 coverage declined by 14.8% during the shortage, with regional disparities observed.
Area of Science:
- Immunology
- Public Health
- Pediatrics
Background:
- National vaccine shortages can disrupt routine immunization schedules.
- Understanding the impact on vulnerable populations is crucial for public health equity.
Purpose of the Study:
- To assess the effect of national vaccine shortages on diphtheria, tetanus toxoids, and acellular pertussis (DTaP) vaccine coverage among American Indian/Alaska Native (AIAN) children.
- To analyze regional variations in DTaP4 coverage decline during vaccine shortages.
Main Methods:
- Utilized Indian Health Service (IHS) immunization reports for DTaP coverage data in children aged 19-27 months.
- Compared DTaP4 coverage rates before, during, and after the shortage period.
- Stratified data geographically to identify regional differences in coverage.
Main Results:
- AIAN children experienced a significant 14.8% decrease in DTaP4 coverage during the shortage.
- Coverage declines varied substantially across IHS regions, ranging from 4.5% to 26.5%.
Conclusions:
- AIAN children faced a greater DTaP4 coverage decline (14.8%) compared to national averages (6%) during the shortage.
- Observed regional variations suggest potential inequities in vaccine distribution and shortage management.
- Emphasizes the need for equitable vaccine distribution and consistent implementation of recommendations to protect children from vaccine-preventable diseases.
Objectives:
We determined the effect of national vaccine shortages on coverage with 4 doses of diphtheria and tetanus toxoids and acellular pertussis (DTaP) vaccine for American Indian/Alaska Native (AIAN) children.
Methods:
Data on DTaP coverage for children aged 19 to 27 months were abstracted from Indian Health Service (IHS) immunization reports. Coverage with the fourth DTaP dose (DTaP4) was compared for different periods to determine coverage levels before, during, and after the shortage. Data were stratified geographically to determine regional variation.
Results:
AIAN children experienced a significant decline (14.8%) in DTaP4 coverage during the shortage. Considerable variation was seen among IHS regions (declines ranged from 4.5% to 26.5%).
Conclusions:
AIAN children included in IHS immunization reports experienced a greater decline in DTaP4 coverage during the shortage than the decline reported nationally for children receiving vaccine at public clinics (14.8% vs 6%). Variations in the decline in coverage highlight possible inequities in vaccine supply and distribution and in implementation of vaccine shortage recommendations. We must identify ways to ensure more equitable vaccine distribution and consistent implementation of vaccine recommendations to protect all children from vaccine-preventable diseases.
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