I don’t know the DNA test you are using but in general they are saliva based or slime from the inside of the mouth. Usual pretty straight forwards and no medical knowledge is required.
Normally these test come with clear instructions how to use them so simply wait for it to arrive and read the instructions.
In the unlikely case that qualified medical staff is required you can try:
www.gokunming.com/[...]

The shops mentioned in the original posts from 12 years ago have long since gone. They never were real electronic component shops to start with but just sold some odd computer parts.
Even “Computer street” itself ( BeiMenJie) is only a shadow of what it used to be. As michael2015 said; all this stuff has gone online only.
One online shop that sells simple kits to make your own electronic gadgets is:
dzdiyzz.taobao.com/?spm=2013.1.1000126.3.24331d20jjcvN0
Their clocks are quite nice to make:
item.taobao.com/[...]

Flight carrying 132 crashes in Guangxi

By LUO WANGSHU | chinadaily.com.cn | Updated: 2022-03-21 16:12

A China Eastern Airlines aircraft carrying 132 people crashed in Southern China's Guangxi Zhuang autonomous region on Monday, the Civil Aviation Administration of China said.

The plane was traveling from Kunming, capital of Yunnan province, to Guangzhou, capital of Guangdong province. Air traffic controllers lost track of the plane in Wuzhou, Guangxi. The flight was carrying 123 passengers and nine crew members.

The administration initiated the nation's emergency response mechanism and dispatched a working group to the crash site to investigate. No information concerning casualties was available.

A village official who participated in the on-site rescue said the plane had completely disintegrated and he did not see remains of the victims at the scene, according to Chutian Metropolis Daily - a newspaper based in Wuhan, Hubei province.

www.chinadaily.com.cn/[...]

A friend of mine pointed out that the info I presented above might not be applicable for all foreigners.

I have a permanent residence permit and I am therefore treated like a Chinese in these matters.

For people on other visa things might be different.

@AlPage48
Just a suggestion. Make a screenshot of the message and use WeChat translate to translate it.

Got my booster some time ago. They called me by phone six months after the second shot to remind me.
Probably thinks came to a standstill now because its Spring Festival.