How is it possible to become infected with the same organism more than once

Subject: How is it possible to become infected with the same organism more than once

Date: Tue Nov 24 21:19:26 1998
Posted by Kathy Van Hoeck
Grade level: teacher/prof
School: York High School
City: Elmhurst State/Province: IL
Country: US
Area of science: Immunology
ID: 911963966.Im

Message:


If the body creates memory cells in response to an antigen, why 
can you become infected with the same organism more than once?  
ie. cholera, strep?  Why are booster shots necessary for some 
diseases, ie. cholera or tetanus?

Re: How is it possible to become infected with the same organism more than once

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