What is the difference between 72 hours and 48 hours of nucleic acid detection?

1, 72-hour nucleic acid test certificate refers to the validity certificate of three days from the date of nucleic acid test report; A negative 48-hour nucleic acid test certificate means that the nucleic acid test report is valid within 48 hours or less. These two meanings are the same, but the time is different!

2. In fact, the negative certificate of nucleic acid detection is calculated from the moment the sample is collected. Of course, most nucleic acid testing reports will also clearly indicate the testing time. If you are not clear, you can also consult the staff.