Generally speaking. Three days and two tests generally means two nucleic acid tests in three days (i.e., 72 hours), because the new coronavirus has a certain latency period in the human body, and the latency period is generally 72 hours or more. Therefore, in accordance with the requirements of epidemic prevention, must be gradually counted from the first sampling time, two nucleic acid test time is also generally much longer than 24 hours, so as to promote the conclusion of the most accurate, otherwise there will be the possibility of test error phenomenon. What happens if you do the second nucleic acid unsatisfactory 24 hours 2 may suffer some effects on personal travel. Because the new coronavirus into the human body needs a certain amount of time to breed, in the middle of a period of ambivalence, so want to do the second nucleic acid is not satisfied with 24 hours, it may be due to the body's viral load is too low or did not arrive at the location to be examined, or even the test does not occur. In general, it is best to follow the rules and take the test twice in three days, and if you do not take the second test according to the rules, your travel may be affected.
The following two categories of people need to carry out "three days two tests":
The first category of people: low-risk areas to (return) Jiang;
The second category of people: all Jiangmen City, foreign (return) Jiang.
Legal basis:
New Coronavirus Pneumonia Prevention and Control Program (Ninth Edition), Chapter 2, Article 3 of the high-risk areas in the county (city, district, flag) of the rest of the low-risk area, to take "personal protection, to avoid gatherings," and other precautionary measures. People in low-risk zones should leave their cities with a 48-hour negative nucleic acid test certificate. All medium and high risk areas lifted, the county (city, district, flag) throughout the implementation of normalized prevention and control measures.