The City

 The City: 

the fourth area of ​​the simulator is The City, there is a hospital, a research laboratory and an airport. There are also 8 hats in this area. Just like The Park, you need to upgrade your sneeze.

 Population Citizens: 

We can have up to 150,000 citizens max in area The City

 Research: 

And a research center that allows you to give in-game bonuses (Sneeze Rate, Sneeze Spread, Infection Points)

 Airport: 

It is an aircraft that deposits citizens in the city it can bring up to 85max, it will be necessary to improve its bonuses so that it is faster and to have more citizens in the aircraft