NOTE: The information regarding Saint Lucia on this page is re-published from the 2017 World Fact Book of the United States Central Intelligence Agency. No claims are made regarding the accuracy of Saint Lucia 2017 information contained here. All suggestions for corrections of any errors about Saint Lucia 2017 should be addressed to the CIA.
The difference between quarantine and isolation can be summed up like this: 1  Isolation applies to persons who are known to be ill with a contagious disease. 2  Quarantine applies to those who have been exposed to a contagious disease but who may or may not become ill.he difference between quarantine and isolation can be summed up like this: 1  Isolation applies to persons who are known to be ill with a contagious disease. 2  Quarantine applies to those who have been exposed to a contagious disease but who may or may not become ill.
Key Difference: Isolation is when the person who is infected with a particular disease is separated from the public to keep the public safe. The terms quarantine and isolation often scare people because usually represents the seriousness of a disease.uarantine is often used when a person comes into contact with an unknown substance or hazardous materials, which may or may not be detrimental to the personâs health. In this case, the person is usually placed under quarantine until proper tests are conducted. Difference between Isolation and Quarantine: Isolation.