Can I get on the high-speed rail in low-risk areas without nucleic acid testing?

Yes.

according to the current epidemic prevention and control requirements, it is not necessary to provide negative proof of nucleic acid test if you take the high-speed rail in a low-risk area, but you need to provide negative proof of nucleic acid test within 48 hours if you take the high-speed rail in a medium-high risk area.

But no matter in low-risk or medium-high-risk areas, you must have a normal body temperature and a health code, and you must have a green code. In principle, you can't take the high-speed rail with a yellow code and a red code.

going to a low-risk area to do nucleic acid does not

vary from person to person.

Whether it is necessary to do nucleic acid testing from low-risk areas to low-risk areas varies from person to person. It is necessary to do nucleic acid testing for key people who are engaged in imported cold-chain food, employees who are in direct contact with imported goods at ports, workers in isolated places, and transportation workers.

Other people from low-risk areas to low-risk areas generally do not need to do nucleic acid testing, as long as their body temperature is normal and they have a green code.

Do low-risk areas need to be isolated from medium-risk areas?

Look at the local epidemic prevention policy.

Different cities have different requirements for epidemic prevention and control. If you just move in low-risk areas without going to high-risk or medium-risk areas before, you won't require isolation when you travel to medium-risk areas. Generally, you can pass smoothly as long as there is a green code.

However, there are some cities with relatively large population bases, such as Beijing and Shanghai. Even people from low-risk areas have to undergo health management for 7 days after arriving in the city, and they have to stay in medium-risk areas for 14 days.