Can 48 hours of nucleic acid exceed three or four hours? Will nucleic acid expire and disappear automatically after 48 hours?

1 48 hours can the nucleic acid last more than three or four hours?

Because COVID-19 is highly contagious and spreads rapidly, people who travel across provinces in many areas are required to carry a 48-hour nucleic acid test certificate.

Under normal circumstances, if the traveler's nucleic acid test exceeds 3-4 hours 48 hours before going out, he can't continue to travel at this time and needs to be tested again.

However, if the traveler is already in the car and the nucleic acid test expires 48 hours before getting off the bus, then it is necessary to contact the relevant personnel in time to explain the situation and then deal with it according to the local epidemic prevention requirements. Generally speaking, most railway stations have nucleic acid detection points. If the validity period of nucleic acid testing has passed, you can choose to do it again after getting off the bus. The epidemic prevention policies will vary from place to place, so it is suggested to decide according to the local actual situation.

Will nucleic acid disappear automatically after 48 hours? number

Nucleic acid detection will not disappear automatically after more than 48 hours. Under normal circumstances, the validity period of nucleic acid testing is 7 days, but the records of nucleic acid testing for nearly 15 days can be seen on the health code of residents. If it exceeds 15 days, it shows that there is no nucleic acid detection record within 15 days, and then the nucleic acid detection record disappears.

When is the 24-hour nucleic acid detection certificate counted? On the negative report of nucleic acid detection, three times are displayed: sampling time, receiving time and reporting time. First, the test sampling time should be determined. If there is no testing sampling time, the next time will be approved in turn, and the latest time will be the reporting time.

However, the actual epidemic prevention policies in different regions are different, so the specific requirements for 24-hour nucleic acid testing certificate are also different, some from the sampling time, and some from the reporting time.

Note: If there is no specific time for nucleic acid testing, only the date, then the date on the report should be counted.

What does it mean to be negative in nucleic acid test? At present, nucleic acid detection is one of the main methods to judge whether COVID-19 exists in human body. Nucleic acid test is negative, indicating that there is no virus in human body, and COVID-19 nucleic acid test result is negative, indicating that there is no problem and COVID-19 is not infected. If the result is positive, it means that you are infected with COVID-19 virus, so you should see a doctor in time.

For the precautions of people in high-risk areas, a negative nucleic acid test can not completely rule out the possibility of infection, because the results of nucleic acid test are affected by many factors, which may lead to false negative nucleic acid test.