In this report, the authors assessed the number of childhood and adolescent vaccinations administered in the months before and after the start of the COVID-19 outbreak in Colorado. Findings suggest that since the onset of the COVID-19 pandemic, vaccination uptake in children and adolescents has shown a significant decrease in Colorado. While the clinical implications of our observation are not yet known, public health advocates should consider addressing this drop to avoid the potential for vaccine-preventable diseases.


  1. Mehrotra A, Chernew M, Linetsky D, Hatch H, Cutler D. The impact of the COVID-19 pandemic on outpatient visits: a rebound emerges. The Commonwealth Fund. Published May 19, 2002.

  2. American Academy of Pediatrics. Guidance on providing pediatric ambulatory services via telehealth during COVID-19. Updated May 8, 2020. 

  3. Hofstetter  AM, DuRivage  N, Vargas  CY,  et al.  Text message reminders for timely routine MMR vaccination: a randomized controlled trial.   Vaccine. 2015;33(43):5741-5746.


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