Evaluation of non-continuous temperature monitoring practices for vaccine storage units: A Monte Carlo simulation study

Details

• Alternative Title:
  J Public Health (Bangkok)
• Personal Author:
  Leidner, Andrew J. ; Lee, Carla E. ; Tippins, Ashley ; Messonnier, Mark L. ; Stevenson, John M.
• Description:
  Objectives:
  
  Evaluate different non-continuous temperature monitoring practices for detection of out-of-range temperatures (above or below the recommended temperature range of 2–8°C for refrigeration units), which are called excursions, within vaccine storage units.
  
  Methods:
  
  Simulations based on temperature data collected by 243 digital data loggers operated in vaccine storage units at health care providers who participated in a CDC-sponsored continuous temperature monitoring pilot project, from 2012 to 2015. In the primary analysis, we evaluate: (1) twice-daily current temperature readings without minimum and maximum readings (min/max), (2) twice-daily current temperature readings with once-daily min/max, and (3) twice-daily current temperature readings with twice-daily min/max.
  
  Results:
  
  Recording current temperature twice-daily without min/max resulted in the detection of 4.8—6.4% of the total number of temperature excursions. When min/max readings were introduced, the percentage of detected temperature excursions increased to 27.8—96.6% with once-daily min/max and to 34.8—96.7% with twice-daily min/max.
  
  Conclusions:
  
  Including min/max readings improves the ability of a temperature monitoring practice to detect temperature excursions. No combination of the non-continuous temperature monitoring practices were able to consistently detect all simulated temperature excursions.
  
  
• Subjects:
  Article Cold-chain Simulation Storage Units Vaccines
• Source:
  J Public Health (Bangkok). 29(6):1253-1260
• Pubmed ID:
  35923301
• Pubmed Central ID:
  PMC9345596
• Document Type:
  Journal Article
• Funding:
  CC999999/ImCDC/Intramural CDC HHSUnited States/
• Volume:
  29
• Issue:
  6
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:ea9a6892c3473d101cb2985e8984cfee8671c03f04e70bf01eface157eaa8633
• Download URL:
  https://stacks.cdc.gov/view/cdc/119983/cdc_119983_DS1.pdf
• File Type:
  [PDF - 585.71 KB ]