The discovery of the "astronomical numbers" benefits is still only in the realm of imagination.
The infection intrusion group experiment has only just begun to be designed, the experiment can be said to not have started yet, and it still needs a long period of observation, whether you can draw a conclusion relies on luck.
The main issue with the experimental group's design is 'coverage'.
The number of type of bacteria and viruses that could potentially infect the human body is countless, especially those infections that don't cause obvious external symptoms, which account for a large portion.
The group experiment that Zhang Wei is now designing, plainly speaking, is to understand clearly, what kind of bacteria or virus had Fan Lei become infected with at that time. Even if Fan Lei has recovered completely, or even if he is still undergoing the immunity process, very professional and detailed detection is required.
Note, it is possible, not definite.