TOPIC 2- Antigenic variation Flashcards
1
Q
What is antigenic variation?
A
When pathogens can change their surface antigens
2
Q
Why are different antigens formed?
A
-Changes in the genes of the pathogens
3
Q
What is the result of antigenic variation?
A
-When you are infected for a 2nd time memory cells from the 1st infection will not recognise the antigens
-So the immune system will produce a primary response and you will be ill again
