Accepted types of molecular tests
PCR - Polymerase chain reaction
Nucleic acid test (NAT) or Nucleic acid amplification test (NAATs)
Reverse transcription loop-mediated isothermal amplification (RT-LAMP)
These tests use methods such as a nasopharyngeal (NP) swab, nose swab, or saliva sample.
Rapid antigen tests aren't accepted.
Other acceptable types of tests
RT-PCR – reverse transcription real time PCR
Quantitative PCR (qPCR)
Isothermal amplification
Droplet digital PCR or digital droplet PCR (ddPCR)
Transcription-mediated amplification (TMA)
RNA (Ribonucleic acid)
Ct (cycle threshold)
CRISPR
Sequencing
Next generational sequencing (NGS) or whole genome sequencing (WGS)
Oxford Nanopore sequencing (LamPORE)
Detection of the N gene
Detection of Orf1a/b
Detection of the S gene
Detection of the E gene
Detection of the RdRp gene
https://travel.gc.ca/travel-covid/travel-restrictions/covid-vaccinated-travellers-entering-canada#pre-entry-testing