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Approach to Assessment of New Swabs and Viral Transport Media for SARS-CoV-2 Testing
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DOI：10.1128/JCM.01562-20.png)
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Abstract
En 中文
In light of the present pandemic of novel coronavirus disease 2019 (COVID-19) and the unprecedented high demand for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) testing worldwide, there are shortages of established specimen collection devices for respiratory viral testing for diagnostic microbiology laboratories. This creates the need to validate unverified collection devices from manufacturers that may not be a registered supplier for medical devices. As clinical laboratories do not routinely perform quality control of established collection devices, there is a need to have a systematic, robust approach to the assessment of substitute unregistered collection swabs and viral transport media (VTM). A discussion of the aspects requiring consideration when determining the suitability and implementation of new collection devices is presented. These specific assessment criteria include an inspection of device integrity, determination of swab and VTM sterility and in vitro performance, VTM stability, and examination of the clinical performance of the device. This method was used in a front-line medical microbiology laboratory on swabs and VTM from an unregistered manufacturer, with suboptimal results that precluded implementation. As the pandemic continues, it will be important for diagnostic laboratories to adopt a flexible and streamlined approach to maintaining adequate supply chains for testing reagents and materials.
Keywords:
SARS-CoV-2
COVID-19
collection device
swab
viral transport media
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