Chapter 10: Immunizations Flashcards
List some live viral vaccines recommended in the US? Also list some available in the US under special circumstances.
- measles, mumps and rubella (MMR)
- varicella zoster (VZV) (for both chicken pox and zoster (shingles)
- rotavirus
- influenza (flu mist)
available in the US but recommended only under special circumstances
- polio (sabin)
- smallpox
- yellow fever
What are some non-attenuated live vaccines recommended in US? Explain.
- adenovirus types 4 and 7 used by military
- vaccine recipients are thus protected against adenovirus acquire by aerosol, which could otherwise produce pneumonia (this is the only example of a live non-attenuated vaccine that is used)
Describe killed vaccines.
utilize organisms that are killed so they can no longer replicate in the host
How is inactivation carried out in killed vaccines?
inactivated by chemicals rather than heat, as heat will often denature the immunogenic epitopes
What type of immunity is predominant in those with killed vaccines?
humoral immunity
What are some examples of killed (inactivated) vaccines?
rabies
influenza
polio (salk)
Hep A
What are toxoid vaccines made from?
inactivated exotoxins from toxigenic bacteria
Which does toxoid vaccines prevent? Disease or infection?
Prevents disease; not infection
Example of a toxoid vaccine.
DTaP
What are polysaccharide vaccines comprised of?
capsular polysaccharide found in many bacteria
What is the only immunoglobulin formed when an individual is given polysaccharide vaccines? Why?
IgM because of the inability of the polysaccharide to activate Th cells (which require protein to become activated)
Polysaccharide vaccines have largely been replaced by what types of vaccines?
conjugate vaccines
List some common polysaccharide vaccines.
Streptococcus pneumoniae, pneumococcal polysaccharide (PPSV23)
Describe the PPSV23 vaccine.
comprised of 23 capsular serotypes of the most invasive and common strains of S. pneumoniae
What is the indication for use of the PPSV23 vaccine?
in adults age > 65 or special circumstances i.e. splenectomy, COPD
Describe conjugate vaccines.
comprised of capsular polysaccharide conjugated to protein: this creates a T cell-dependent immune response with class switching
Give some examples of conjugate vaccines.
- Haemophius influenzae type B (Hib)
- Streptococcus pneumoniae, Pneumoccocal conjugate (PCV13)
- Neisseria meningitidis
What is the PCV13 comprised of?
13 capsular serotypes
Indiction for PCV13
indicated for use in infants
Describe component vaccines.
- comprised of an immunodominant protein from the virus that is grown in yeast cells
Give an example of how the component vaccine for hep B works?
the gene coding for the HBsAg is inserted into yeast cells, which then releases this molecule into the culture medium; the molecule is then purified and used as the immunogen in the vaccine
Give examples of component vaccines.
- HBV
- Hep B surface ag
- HPV
-Quadrivalent vaccine with serotypes 6, 11, 16, and 18
-9 valent vaccine (Gardasil 9) to prevent >90% of cancers, as opposed to the quadrivalent vaccine which can protect up to 70% of cancers; contains serotypes 6, 11, 16, 18, 31, 33, 45, 52, and 58
When can live attenuated virus vaccines be given to the neonate?
> 12 months
What is the only ab isotype useful in diagnosing infections in neonates?
IgM
Understand this chart.
List some bacterial vaccines.
- C. diptheriae
- B. pertussis
- C. tetani
- H. influenze
- S. pneumoniae
- N. meningitidis
DTaP stands for what?
C. dip., C tetani, acellular Pertussis vaccine
Initials for H. influenzae vaccine.
Hib
Initials for S. pneumonia vaccine.
PCV ( pediatric) or PPV (adults)
What are the initials for the N. meningitidis vaccine?
MCV-4
C. dip is what type of vaccine?
toxoid
B. pertussis is what type of vaccine?
toxoid plus filamentous hemagglutinin
C. tetani is what type of vaccine?
toxoid
H. influenzae is what type of vaccine?
capsular polysaccharide and protein
S. pneumoniae (PCV) is what type of vaccine?
13 capsular serotypes and protein
PPV is what type of vaccine?
23 capsular serotypes
MCV-4 is what type of vaccine?
4 capsular serotypes (Y, W-135, C, A) and protein
Initials for rotavirus vaccine?
RV
Initials for polio vaccine?
IPV, OPV
Initials for influenza vaccine?
IIV, LAIV
Initials for varicella zoster virus vaccine?
VAR
Initials for Hepatitis A vaccine?
HepA
Initials for Human papilloma virus vaccine.
HPV
Initials for Hep B virus vaccine?
HepB
MMR vaccine stands for what?
measles, mumps, and rubella vaccine
RV is what type of vaccine?
live
IPV is what type of vaccine?
killed (salk)
OPV is what type of vaccine?
live (sabin)
IIV is what type of vaccine?
inactivated (killed)
LAIV is what type of vaccine?
Live
VAR is what type of vaccine?
live
HepA is what type of vaccine?
inactivated (killed)
HPV is what type of vaccine?
component
HepB is what type of vaccine?
component
MMR is what type of vaccine?
live
What does TORCHeS (TORCH) infections stand for?
toxoplasmosis, other (gonorrhea, HIV, parvovirus, varicella) ,Rubella, CMV, HSV, Syphillus
What are the vaccines that should be given at 2 months and what is the acronym to remember them?
2B DR HIP (2 doses Hep B (1st @ birth), DTaP, rotavirus, haemophilus influenzae, inactivated polio, pneumococcal
What are the vaccines that should be given at 4 months and the acronym to remember them?
4 DR HIP
DTaP, rotavirus, haemophilus influenza B, IPV, pneumococcal
What are the vaccines to be given at 6 months?
B DR HIP In 6 months.
Hep B, DTaP, rotavirus, haemophilus influenza (B?), IPV, pneumococcal, influenza
What are the vaccines to give children 12 - 15 months? Also acronym to remember?
1 Very MAD HIPster
VZV, MMR, Hep A, DTaP, Hib, IPV, pneumococcal
What are the vaccines to give children 4-6 years of age?
Very DIM between 4-6pm.
VZV, DTaP, IPV, MMR