Vaccine

Question 1

What is immunity?

Answer 1

Immunity is the bodies ability to fight against infections cause by pathogens.

Question 2

What types of immunity are there?

Answer 2

Innate immunity is non-specific. Includes the bodies physical barriers.
Acquired immunity is specialized.
The body creates a memory whereby subsequent attacks are more quickly defended against.

Question 3

What is acquired immunity?

Answer 3

Production of lymphocytes and antibodies which fight against the infection.
These lymphocytes have a memory about previous information.

Question 4

What is naturally acquired immunity?

Answer 4

Active- Antigens (germs) enter the body; body produces antibodies.
Passive- Antibodies pass from mother to fetus by placenta or infant via milk.

Question 5

What is artifically acquired immunity?

Answer 5

Active- antigens introduced in vaccines; body produces antibodies.
Passive- Pre-formed antibodies in immune serum enter body via injection.

Question 6

What are vaccines?

Answer 6

Vaccines contain a small amount of dead or weakened pathogen particles.
A vaccine stimulates the production of antibodies and memory cells against the target pathogen, without making the person ill.

Question 7

What are some common vaccines?

Answer 7

Polio, tetanus, rubella