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'''***'''LOD: Limit of detection
'''****''' '''TCID50/mL represents the viral load at which 50% of cells are infected when a solution containing the virus is added to the cell culture. The detection limit is expressed in TCID50/mL and copies. Copies/TCID50 for H1N1 is 2,3811,048copies2381 copies/TCID50 corresponding to so 1TCID50/mL represents 2381 copies per mL.0510-1TCID50It is a very rough method to determine concentration and it has a standrad deviation of about 1048 copies/mLTCID50.'''</sub></div>
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4646456/
CLIA waived tests are tests cleared for POC setting. These are simple tests with a relatively low risk for an incorrect result. Tests are scored by seven criteria on a scale of one to three, where a score of 1 indicates the lowest level of complexity. The tests may be called CLIA waived, if the score is low enough. The seven criteria are:<ref name="Arti27">Categorization Criteria CLIA test, FDA, 2020, Inc., https://www.fda.gov/node/365445#scorecard</ref>