Influenza Vaccinations Administered in Pharmacies and Physician Medical Offices, Adults, United States

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  • The projected pharmacy estimates are based on IQVIA§ LRx product and vaccinations administered in retail pharmacies (include chain, mass merchandise, food stores, and independent pharmacies). The estimates include flu vaccinations that were billed to insurers (i.e. claims) or paid by cash. Evaluations are underway to determine average time-lag for claims and data processing.  As an example, the estimate for week ending August 27, 2022 was 679,768 when it was first reported and increased slightly to 679,795 at the end of the flu season as of the week ending May 27, 2023.
  • The projected physician medical offices estimates are based on IQVIA’s Dx product. The estimates include flu vaccinations that are claims-based only and estimates are expected to increase over time for a given time period as claims are processed and adjudicated. Evaluations are underway to determine average time-lag for claims and data processing. As an example, the estimate for week ending August 27, 2022 was 198,401 when it was first reported and increased (10.7%) to 219, 558 week ending October 8, 2022 and remained unchanged thereafter through the end of the flu season as of the week ending May 27, 2023.
  • Vaccinations administered in other settings such as workplaces and community settings are not included in these data.
  • Figure 6. Weekly Cumulative Estimated Number of Influenza Vaccinations Administered in Pharmacies and Physician Medical Offices by Flu Season*, Adults 18 years and older, United States, Data Source(s): IQVIA Pharmacy and Physician Medical Office Claims. Data are current through September 30, 2023.

§ 1) King, L. M., Bartoces, M., Fleming-Dutra, K. E., et. al, L. A. (2020). Changes in US outpatient antibiotic prescriptions from 2011–2016. Clinical Infectious Diseases, 70(3), 370-377. 2) McLaughlin, J. M., Swerdlow, D. L., Khan, F., et. Al (2019). Disparities in uptake of 13-valent pneumococcal conjugate vaccine among older adults in the United States. Human vaccines & immunotherapeutics, 15(4), 841-849.

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*National estimates for pharmacies and medical offices include vaccinations administered in 50 states and DC. National estimates for medical office vaccinations do not include doses where geographic information (i.e. which state the dose was administered in) was missing. Pharmacy data are through Friday of each week and medical office data are through Saturday of each week. Week ending dates for prior seasons are aligned with the current season’s week ending dates.