Impact of an Additional Immunizing Pharmacist at an Interprofessional Student-led Clinic for the Underserved

Background: To streamline workflow during peak influenza season in our weekly student-led free Interprofessional Community Clinic (ICC), an additional pharmacist shift solely responsible for providing immunization services was implemented from October 2018 to February 2019. The objective of this study was to determine the impact of adding an immunizing pharmacist, in addition to a clinical pharmacist, on adherence to Centers for Disease Control and Prevention (CDC) vaccine recommendations and overall immunization rates at ICC. Methods: A retrospective chart review of patient visits from October 2017 to February 2019 was conducted. Vaccination rates and CDC recommendation adherence were compared to a historical control when an immunizing pharmacist was not scheduled. Chi-square analysis was performed on categorical data; Fisher’s exact test was used to assess impact of an immunizing pharmacist on vaccination rates and adherence to CDC recommendations. A p-value of <0.05 was considered statistically significant.  Results: A total of 78 patient visits and 58 unique patients were included. There was a significant increase in the adherence to CDC recommendations for pneumococcal vaccine when an immunizing pharmacist was present (p=0.02). There was no significant difference in the adherence to CDC recommendations for all other vaccines and overall vaccine rate between the two groups (p>0.05).  Conclusion: Implementation of an immunizing pharmacist in an interprofessional clinic significantly impacts the adherence to CDC recommendations for pneumococcal vaccine without significantly impacting the overall vaccine rate. Benefit of an additional pharmacist dedicated to vaccinations should be weighed for workflow improvement versus impact on vaccine adherence and rate.