Immunizations Flashcards
IgA
Mucous, tears, breastmilk
IgD
Part of B cell receptor. Activates basophils and mast cells
IgE
Protects against parasitic worms. Responsible for allergic reactions
IgG
Secreted by plasma cells. Can cross placenta
IgM
Early stages of immunity
Passive immunity
Transfer of immunities via antibodies from person to person. Maternal antibody to infant. Wanes 4-12 months after birth
Active immunity
Stimulation of own immune system. Relies on immunologic memory. Occurs from natural infection or vaccination
Live attenuated vaccines
Contains live, weakened organisms
MMR, varicella, polio (sabin) adenovirus, influenza (inhaled), rotavirus, rotavirus
Positives and negatives of live attenuated vaccines
single dose provides long-lasting immunity. Contraindicated in pregnancy and immunocompromised; adverse reactions similar to actual disease
Whole inactivated vaccines
Hep A, Rabies, Influenza (IM), whole cell pertussis
Positive and negatives of inactivated vaccines
Safe in pregnancy and immune compromised states.
Multiple doses or boosters needed
Fractional inactivated vaccines
Portion of pathogen
Polysaccharide vaccines like PPV23, acellular pertussis, meningitis, influenza, hep B, HPV
Toxoids
Inactivated bacterial toxins
Tetanus, diphtheria
Adjuvants
Substance that enhances immune response to the antigen. Aluminum is the only approved adjuvant. Used in Hep B/A, DTaP, DT, Hib, HPV
Pediarix
DTaP, Hep B, IPV
*we always give the Hep B vaccine in the newborn (pediatric) nursery