Containment is a U.S. policy that tries to stop the spread of Communism by "containing" it to the areas that it has already spread to. This policy was used after WWll and just before Cold War tensions started to heat up between the U.S. and the Soviet Union because America wanted to stop Communist Russia's influence on the rest of Europe.
It affected people to abandoned their friends and family. It also weakened their faith especially church. To what that means is that the plague caused many discrimination to each other.