Chengdu Customs seized a batch of human saliva samples. Are these samples potentially harmful?

Chengdu Customs has seized a batch of human saliva samples. Are these samples potentially harmful? The answer is yes. How can it be seized without endangering Chengdu Customs? Just let it go directly. The reason why it was seized is that this "human saliva sample" will be potentially harmful, which is beyond doubt.

what are the potential hazards of human saliva samples? The customs believes that "this human saliva sample may contain infectious pathogens such as bacteria and viruses, and there is a risk of the spread of infectious diseases." It is reported that the "human saliva sample" seized this time did not contain declare in advance, but was declared in an "immigration document". After unpacking, the customs officers found that there were 8 cotton swabs containing human saliva in the package, and the cotton swabs were placed directly in the envelope, which looked very unsanitary.

As we all know, saliva contains a lot of bacteria and viruses, which are highly dangerous substances that cause the spread of the epidemic. It is for this reason that we have to wear masks when we go out now. And this kind of thing has been specially mailed from abroad, which is doubtful.

Moreover, this "human saliva sample" seized by Chengdu Customs was found in the name of "immigration document", and the express delivery address was a genetic testing company in China. At present, there are genetic testing companies in many countries in the world. If you want to do genetic testing, you can do it completely in the countries where express delivery is made. Why should you mail it to China? Moreover, when the name is declared by express delivery, it is still declared by "immigration documents", which is even more incredible. Now no country requires "genetic testing" as a necessary condition for immigration, right? And why is the "immigration document" not a "document" but a "human saliva sample"? This is obviously done deliberately to hide people's eyes and ears. All these signs make it hard not to doubt this "human saliva sample", which further increases the potential harm of this sample, so it is even more reasonable for the customs to intercept it.