they are questioning their own mortality
some people would want to leave their country because of deportation, diseases, religion, lack of jobs, or poor food.
Counterurbanization is when people leave large cities and move to smaller towns and rural areas.
Rapid urbanization has led to challenges in providing adequate infrastructure and services to growing populations in many cities.
spread diseases that leave painful sores but are not fatal spread by bite, physical contact, or feces
That is called migration and migration is to move from one place to another.
people die or leave to a different place
They have no safe place to go and do not want to leave their land. Many people live in remote areas and the warnings may not get to them.
People left for political (a dictatorship ruled until 1974) but mostly economic reasons. The rural areas were extremely poor.
The colonists wanted to leave there homeland because they were looking for gold and riches in the new world. they wanted to have less diseases so therefore they had to leave.
i think its after because when they leave their are no more diseases
Side effects are generally mild, and occur sparingly. The diseases the vaccines PROTECT against, however, can leave people crippled, seriously ill, or can kill (but in a horrible, painful way). Believe me when I say, the vaccines are far better than the diseases they protect against, even if there are side effects.