Globally it has made people recognize (more than they would before) the importance of washing your hands, not touching certain things in a public area etc.
Personally it has made me look around and think what i shouldn't be touching, and being aware of sickness that could possibly be going around.
Answer:
Corona changed the world by shutting it down and taking peoples lives. It has shut peoples bussiness down and it also has killed people in the worst ways.