Diagnostic strategies for SARS-CoV-2 infection and interpretation of microbiological results.

Further reasons decreasing the performance of a molecular test include the ability of the virus to mutate (changing sequence of the regions in which primers are hybridizing), or the PCR inhibition [ 20 ], the latter being nowadays almost insignificant (in our laboratory, we observed an inhibition in about 0.3% of the tested samples).

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