CAIE IGCSE Biology 10.1.11 The Vaccination Process

Practise sequencing how vaccine antigens stimulate lymphocytes, antibodies and memory cells for long-term immunity.

Exam points

state that a vaccine introduces weakened or inactive pathogens or their antigens into the body
explain that the antigens stimulate specific lymphocytes to produce antibodies
link memory-cell formation to a faster secondary response and long-term protection on later exposure

[Maximum number: 1]

Cholera is a transmissible disease.

A study was designed to test the effectiveness of a cholera vaccine in an area where outbreaks of cholera occur frequently.

The doctors gave some people in this area the new vaccine.

Suggest what the cholera vaccine must contain to be effective.

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10.1.11—Process of vaccination: (a) weakened question 1