Walgreens, at least in my area, has stopped their rapid antigen testing. They offer a “rapid NAAT test” with results within 2 hours but provide no more detailed description. Walgreens says to check with your travel provider to see if their test is accepted. Princess’ accepted NAAT tests are:
Nucleic acid amplification tests (NAAT) include:
Polymerase chain reaction (PCR)
Reverse transcription real-time PCR (RT-PCR)
Quantitative PCR (qPCR)
Reverse transcription loop-mediated isothermal amplification (RT-LAMP)
Transcription-mediated amplification (TMA)
Molecular test or molecular diagnostic
Isothermal amplification
Droplet digital PCR or digital droplet PCR (ddPCR)
Clustered regularly interspaced short palindromic repeats (CRISPR)