2.5e Immune evasion

Question 1

Parasites

Answer 1

Parasites have evolved ways of evading the immune system.

Question 2

How do endoparasites evade detection?

Answer 2

Endoparasites mimic host antigens to evade detection and modify host immune response to reduce their chances of destruction.

Question 3

Antigenic variation

Answer 3

Antigenic variation in some parasites allows them to change between different antigens during the of infection of a host.

It may also allow re-infection of the same host with the new variant.

Question 4

Intergrating genome

Answer 4

Some viruses escape immune surveillance by integrating their genome into host genomes, existing in an inactive state known as latency.

The virus becomes active again when favorable conditions arise.