vaccines and herd immunity

Question 1

small amounts of what and what does this stimulate

what is the definition of a vaccination

Answer 1

small anounts of antigens to stimulate an immune responce against a particular disease

Question 2

what cells are stimulated what do they not create

whats the definition of a vaccine

Answer 2

memory cells are stimulated to against a disease without cauing any symptoms

Question 3

if body is exposed to the same antige agin what would happen

Answer 3

antibodies are produced rapidly and the infection is overcome without any symptoms

Question 4

herd immunity
large proportion of p…………… is im….. to a disease then the spead of that pa…….. is r………

Answer 4

population
immune
pathogen
reduced

Question 5

what are 2 positives about herd immunity
what people are protected
what may happen to disease

Answer 5

vunerable people are protected
the disease could dissapear

Question 6

when we say the spread of the pathogen is reduced it means
its less likely that a perosn will become i…….. and p… it on

Answer 6

infected
pass it on

Question 7

antigenic varibility could mean that v…… will no loger be e…….. against a particular disease
pathogem mu……. to have different antigens
no longer recognsised by i…… system

Answer 7

vaccine
effective
mutates
immune

Question 8

describe what a sucessful vaccination programme entails

Answer 8

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