Back to article: Detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its first variants in fourplex real-time quantitative reverse transcription-PCR assays
* All positives have been confirmed by sequencing
** Number of positive test results (% of detection).
*** Sampling period between February 21 and March 30, 2021.
**** Sampling periods between March 19 and March 25, 2020 and February 21 and March 30, 2021.
***** Sampling period between March 19 and March 25, 2020.