How do pathogens use antigenic shifts to escape recognition by host defenses?

Question

Quizplus · Accepted Answer

Pathogens use antigenic shifts by recombination of genes from different pathogens to create new strains that are not recognized by the host's immune system. This occurs mainly in viruses such as influenza, which undergoes continuous changes in their genetic material leading to the emergence of new strains that the host's immune system is not able to recognize and fight off.

How Do Pathogens Use Antigenic Shifts to Escape Recognition by Host