Disease

Parasite

Host
Primary Host
Intermediate Host

Endoparasites

Ectoparasites

Pathogens

Infectious

Vector

Contagious

Carrier

Gram Stain

Viruses

Prions

Antiseptics

Antimicrobial agents

Non-specific defences

Cell-mediated defences

Specific immunity

Cell-to-cell recognition

Lymphocytes

Cytokines

Interferon

Complement

Phagocytes

Natural Killer Cells

Mast Cells

Platelets

Resolvins

Fever

Humoral immunity

Cell-mediated immunity

Antigen

Antibodies

Helper T cells

Cytotoxic T cells

Proliferate

Plasma cells

Memory cells

Humoral immune response

Clonal sellection

Genetic recombination

Antigenic variation

Antigenic mimicry

Active immunity

Vaccination

Toxoids

Naturally acquired active immunity

Attenuated vacccines

Inactivated vaccines

Passive immunity

Artificially acquired passive immunity

Naturally acquired passive immunity

Allergy

Autoimmune diseases

Resistance