The Invaders
These are single-celled organisms that can live on their own.
Bacteria
This immune system is always active
Innate immunity
One way germs enter the body
Through the nose/ cuts or wounds/ insect bites/ touching contaminated surfaces
Vaccines train this system
These need to infect cells to survive.
Viruses
These are the first line of defense
Barriers
This immune system activates only during infection
Adaptive immunity
These allow germs to bypass your skin’s protection
Cuts or wounds
Vaccines contain weakened or dead parts of these
Pathogen/antigens
These include mold and yeast
Fungi
This body response includes fever and inflammation
Immune response
These cells eat pathogens
Macrophages/ Granulocytes
This spreads germs through the air
Coughing/sneezing
These are created after vaccination for foster response
Memory cells
These live on or inside a host and steal nutrients
Parasites
This happens when the body is exposed to a pathogen for the first time
Naive infection
These cells kill infected body cells
T-cells
This help trap and remove germs
These are produced to fight specific germs
Antibodies
These are NOT killed by antibiotics
Viruses
These cells remember pathogens for future defense
Memory cells
These produce antibodies
B-cells
This body response raises temperature to fight germs
Fever
This happens when your body recognizes a pathogen quickly after vaccination
Immune memory response