Vaccines Flashcards

1
Q

what is variolation

A

intentionally exposing someone to a weak form of the smallpox virus to cause a mild case that would lead to immunity

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2
Q

what did Edward Jenner do to vaccinate people against smallpox

A

inoculated a boy with cowpox virus to give him immunity to smallpox(created the first vaccine)

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3
Q

what role did Pasteur have in advancing vaccines

A

Attenuated Bacterial Vaccine

-cholera and anthrax vaccines discovered how to weaken a disease to administer a safe vaccine

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4
Q

what is the principle of vaccination

A

administration of a formula to induce pathogen specific adaptive immunity and memory B and T cells

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5
Q

what infectious diseases have been eradicated

A

smallpox
rhinderpest

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6
Q

what are the goals of vaccination

A

-increase resistance to infection
reduce probability of developing clinical disease/reduce symptoms
-reduce transmission of disease
establish herd immunity

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7
Q

what is herd immunity

A

protecting a whole community from disease by immunizing a critical mass of the population

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8
Q

what are characteristics of ideal vaccine

A

-long term protective immunity
-one/few doses needed
-safe
-retains activity at different temps(stable)
-easy administration
-suitable for max vaccination(any age or immuno capabilities)
-easy to manufacture on large scale
-low cost

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9
Q

what US government agency regulates human vaccines

A

FDA

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10
Q

common(local) adverse effects to vaccines

A

swelling
pain/soreness

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11
Q

how was the myth of autism from vaccines fabricated

A

Andrew Wakefield’s scientific fraud
in 1998 scientist published a paper on a link between MMR vaccine and autism, it was later fully retracted by 2010

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12
Q

how is the anti-vaccine movement a threat to public health

A

lessens ability for herd immunity and allows for spread of disease

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13
Q

describe Pasteurs Cholera vaccine experiment

A

he gave a chicken an injection of an aged/weak version of the disease(pasteurella multocida) noticed it remained healthy, then gave it an injection of the full strength disease and noticed that it didnt die to to the previous weak injection

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14
Q

what does the R0 equation indicate

A

the average ability to the spread of an infectious disease

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15
Q

what disease is most spreadable? least?

A

most: measles(11-18)
least: seasonal flu(1.3)

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16
Q

critical mass immunization needed for measles herd immunity

A

95% immunization

17
Q

live attenuated vaccines

A

weakened form of the pathogen

18
Q

inactivated vaccines

A

killed form of the pathogen

19
Q

subunit vaccines

A

purified proteins of the pathogen

20
Q

recombinant vectored vaccines

A

harmless viruses producing proteins of the pathogen

21
Q

DNA/RNA vaccines

A

DNA or mRNA coding for the proteins of the pathogen

22
Q

what protein allows for viruses to bind

A

spike protein

23
Q

where were inactivated virus vaccines used for covid

A

china and russia

24
Q

where was a DNA vaccine used for covid

25
what vaccine type works well for rural areas
subunit vaccine
26
rare(systematic) adverse effects of vaccination
transient fever malaise anaphylaxis
27
what is Guillian-Barre syndrom
rare autoimmune neurological disorder triggered by some viral and bacterial infections (some viral vaccines may increase risk of it)
28
contributing factors to vaccine hesitancy
-negative beliefs based on myths -misinformation -mistrust of healthcare system -influential leaders -cost -safety concerns