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Q&A on Vaccine Allocation

November 13, 2009

The blog will regularly feature questions frequently asked by local health departments (LHDs). The answers have been provided by the Centers for Disease Control and Prevention (CDC) or NACCHO representatives who are experts in fields such as infectious disease, preparedness, immunization, and community health.

Q: How are vaccine allocations to each state being made?

A: Vaccine is allocated pro-rata based on population using data provided by the 2008 Census. There are four regional distribution centers that serve a number of states. If a regional distribution center has an issue (e.g., quarantine of vaccine), it may be that some of the vaccine allocated to that distribution center is not available on that particular day which contributes to variation across a region when looking at allocation information. Shipping data available to local health departments can also cause confusion because allocated, ordered, and shipped are the three data points. If you''re looking at vaccine shipped you''ll see wide fluctuations because some states order daily, while others may not.

 For more information, please visit the CDC Web page on vaccine distribution.


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