Final Flashcards
- Schwartz, Ethics of Vaccination Programs,
a. One must consider all aspects of the argument including the ethical side
- Miller, Vaccine and Autism
a. There is no like between vaccines and autism
• What is herd immunity? How it protects the community?
Herd immunity theory proposes that, in contagious diseases that are transmitted from individual to individual, chains of infection are likely to be disrupted when large numbers of a population are immune or less susceptible to the disease. The greater the proportion of individuals who are resistant, the smaller the probability that a susceptible individual will come into contact with an infectious individual.[2]
- How dose vaccine mediate protection?
• Depending on the type of vaccine, it could activate an antibody-mediated response or a cell mediated response. Know examples for each type of vaccine.
o Live Attenuated Vaccine
• Produced by growing the vaccine in less than optimal conditions and select for weaker strains. Expand and purify the virus
• -Activates a strong immune response often lifelong immunity with a few doses) Works for Measles mumps polio Rotavirus Rubella Tuberculosis Varicella, Yellow Fever
o Inactivated or Killed
• Produced by heat or chemical inactivation of the pathogen. This weakend pathogen produces an immune response safely because there is no replication in the host.
• Know the significance of the memory function of the adaptive immune system.
o Immune activation is faster and stronger the second time and antigen is introduced
4- Know the different types of vaccines
o Live Attenuated Vaccine
• Produced by growing the vaccine in less than optimal conditions and select for weaker strains. Expand and purify the virus
• -Activates a strong immune response often lifelong immunity with a few doses) Works for Measles mumps polio Rotavirus Rubella Tuberculosis Varicella, Yellow Fever
o Inactivated or Killed
• Produced by heat or chemical inactivation of the pathogen. This weakend pathogen produces an immune response safely because there is no replication in the host.
5- Vaccine production
• What is vaccine immunogenicity and why it is a significant aspect in vaccine production?
o Immunogenicity is the ability of the vaccine to elicit and immune response
• What are the different safety considerations in vaccine production?
o Manufacturing
o Transportation
o Administration
o Stability/storage
• Live vaccine= most tolerate freezing
• Inactivated vaccines
• Damaged by exposure to temperature fluxuation
o This damages potency
• What is vaccine immunogenicity and why it is a significant aspect in vaccine production?
o Immunogenicity is the ability of the vaccine to elicit and immune response
• What are the different safety considerations in vaccine production?
o Manufacturing
o Transportation
o Administration
o Stability/storage
• Live vaccine= most tolerate freezing
• Inactivated vaccines
• Damaged by exposure to temperature fluxuation
o This damages potency
6- Current vaccination schedule:
• CDC recommendation
o Reccomends vaccines for 16 preventable diseases
• Why so many vaccines at young age?
o Children may be to weak to fight these diseases
• Is this schedule safe? IOM report
o Yes it is safe thus there is no reason to test for alternatives
In addition it is unethical (no one has proposed and ethical way to test) to test for alternatives or to test for the effectiveness of this schedule
• Andermann, Genetic Screening, AND
o Primary care pro’s have important role in helping patients navigate genetic screening services by informing them about benefits and risks of genetic technologies→informed choices
• Haga, Ethical issues of genetic testing for diabetes
o Genetic screening needs to be pursued responsibly
o Involve all stakeholders in the discussion about genetic screening
1- Know the etiologic spectrum of diseases.
- Genetic – Multifactorial/complex – Environmental
- Ex: Single gene disease (Huntingtons) → Genetic
- Ex: Caused by combo of genetic and environmental factors → Multi/complex
- Ex: Due to environmental factors → Environmental
2- Genetic screening
o Population screening for a disease-causing gene in carrier individuals or in offspring of carriers
o Improve public health
• What are the major principles of genetic screening?
o Condition should be serious and relatively common
o Disease should be clearly understood
o There should be an acceptable way of intervention or treatment
o MUST have a strategy for communicating results efficiently and effectively
3- Genetic testing
o Used to identify people at risk w/in a clinical setting
o Ex: prenatal diagnosis, heterzygote carrier detection, presymptomatic diagnosis of disease
• Genetic tests can be classified based on the predictive value into predisposition testes, pre-symptomatic tests and susceptibility tests. Know what these tests are, and a disease example with each one.
o Predisposition tests
• Rare forms of common conditions: small subset of cases caused by mutation of single gene
• BRAC1/2
o Presymptomatic
• Test for conditions caused by mutations in single genes
• Huntingtons
o Susceptibility
• Tests for common conditions caused by complex gene-gene and gene-environment
• T2DM
o Analytical Validty
• With exception to human errors, the analytical validity of DNA-based tests is very high