The testing process is similar because for both tests you will need to take a swab from your throat and nose. PCR and LFD testing have different roles to play in controlling the virus, so it isn’t helpful to directly compare them in terms of how sensitive they are. Sensitivity refers to the proportion of people with COVID-19 that have a positive test. LFD testing is useful for finding out if a person is infectious now, and able to transmit the virus to others. The level of sensitivity is high enough to detect the vast majority of these cases. LFD testing is less likely to return a positive result outside the infectious window. PCR testing is useful for confirming a suspected case of coronavirus, where the person is already self-isolating and is showing symptoms. Higher sensitivity of PCR means it can identify genetic material from COVID-19 even after the active infection has passed. The different levels of sensitivity are therefore appropriate for the ways they are used. An additional benefit of LFD tests is that results are available much quicker, as the test is processed on site as opposed to being taken to a laboratory to be processed.