Immunity and vaccine Flashcards
(35 cards)
immune system
- WBC
- spleen
- thymus
- bone marrow
- antibodies
- lymphatic system
hematopoietic cell divides into…
- lymphoid progenitor (makes our CD4 and CD8 cells)
- myeloid progenitor (makes our WBC and platlets)
Steps of humoral immunity are
- antigen binds to antibody on B cell
- B cell eats antigen and puts it w/ MHC II proteins
- Help T cell binds to MHC II protein and releases cytokines
- B cell divides into memory and plasma cells
- plasma secretes antibodies that bind to antigen and destroy
Steps of cell- mediated immunity are
- Infected cell has antigen on surface
- T cell receptors bind to antigen
- releases cytokines
- cytokines allow activation of cytotoxic T cells
- cytotoxic T cells destroy infected cell
What type of bacteria does humoral immunity target
- targets invaders outside of the cell
- virus, fungi, bacteria, and toxins
What type of bacteria does the cell mediated immunity target
- targets defective body cells
- infected and cancer cells
Natural immunity definition
- 1st line of defense
- fights everything
- Skin and mucous membranes protect our organs
- ex. phagocytes and NK cells seek and destroy
Acquired immunity definition
- 2nd line of defense after exposure
- specialized cells/specific to antigen
- recognize invaders
- immune response
Humoral response
- activates B cell lymphocytes and divides into
1. memory cells
2. plasma cells that secrete antibodies
What are cytokines
- chemical messengers
- can be reproduced as biologic response modifiers (BMR)
- modify bodys immune response to disease
What do cytotoxic T cells (CD8) do
kill infected/cancerous cells
What to helper T cells (CD4) do
activate other immune cells (macrophages)
What do vaccines do
prevent illnesses
Interventions of vaccines
- compliance
- vaccine info sheet (VIS)
- educate pt
education of vaccine
- vaccine adverse event reporting system (VAERS)
- app to report adverse effects - vaccine preventable disease (VPD)
- outbreak tracking (measles, covid)
Common minor reactions of vaccines
- discomfort
- swelling
Common major reaction of vaccines
- anaphylaxis
- encephalopathy
- paralysis
contradictions of vaccines
- immunocompromised (LIVE vaccines)
- mod/severe illness
- hx of anaphylaxis
What does epinephrine do
- helps reverse effects
- reverse bronchoconstriction
- simple Ortho mimetic
Live vaccine (weakened)
- danger w/ immunocompromised
- ex. MMR, chicken pox
Killed vaccine
- part/piece of microorganism
- ex. whooping cough, Hep A, rabies
Toxoid vaccine
- contains bacteria toxins that have been chemically modified
- dont kill, go after bacteria that secretes toxins
- ex. tetanus, mRNA
Recombinant technology vaccine
- made in lab using biotech
- ex. covid
mRNA vaccines
- teaches your cell how to make copies of spike protein
- when exposed to real virus your body will recognize it and knows how to fight it off