While in the worst case this saturation point would be the total population, it's of course not true that people with the virus are randomly shuffled around the world's population like this, people are clustered in communities.
然在最坏的情况下这个饱和
会是总人口,但显然病毒携带者并不是像这样随机分布在全世界的人口中,人们是聚集在社区里的。