Vaccines

Question 1

How do vaccines work?

Answer 1

Made up of fragments of a pathogen or the entire pathogen that is modified, allowing the immune response to develop without contracting the disease

Question 2

What do vaccines result in?

Answer 2

Results in an immune response against the disease without exposure to it so that when the individual comes in contact with the natural pathogen their immune system is prepared to act against the pathogen

Question 3

What type of immunity do vaccines lead to?

Answer 3

Active artificial immunity

Question 4

Reasons to get influenza vaccine each year

Answer 4

1. Antigenic drift: small changes in genes of the influenza virus that leads to changes in viral surface proteins over time (NA and HA)–>new strains
2. Booster doses requires to maintain immunological memory
3. Herd immunity
4. Reduces effects flu

Question 5

Herd immunity

Answer 5

Form of indirect protection from an infectious disease that occurs when a large population is immune; accomplished by diminishing risk of transmission through vaccination