It's just that this domino-like effect will be diluted by the group in the indirect transmission process, so we often don't feel it, but this effect does exist!
Only this domino-like effect, in the indirect transmission process, the impact on the individual will be diluted by the group, so we often do not feel, but this effect is real!
But this kind of domino effect, in the indirect transmission process, the impact on the individual will be diluted by the group, so we often can't feel it, but this effect does exist!<br>