The answer is Black Death
The cause would be rodents carrying the disease and the fleas would bite the human
Step 1: immune system goes and finds the virus.
Step 2: it process to search.
Step 3: it envelops it after it fells it out
Step 4: it comments suicide to kill the forging cell
The Soviet Union by 1948 had installed communist-leaning governments in Eastern European countries that the USSR had liberated from Nazi control during the war. The Americans and British feared the spread of communism into Western Europe and worldwide.
Answer: Land and lots of it
Explanation: The West was essentially untouched by colonists save for the California coast line so there was plenty of land available for farming on. Many people moved from the rest of the country in hopes of starting a new life.