Injecting small amounts of dead /inactive pathogens
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What do the dead pathogens carry?
Pathogens
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What do pathogens cause?
They cause the body to produce antibodies to attack them - even though the pathogen is harmless ( since its dead or inactive)
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What does the MMR vaccine contain?
weakend versions of the viruses that cause measles, mumps and rubella (German measles) all in one vaccine
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What happens if live pathogens of the same type appear after the vaccine?
White blood cells can rapidly mass-produce antibodies to kill off the pathogens
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Why dont vaccines always work?
Sometimes they dont give you immunity
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How common are bad reactions?
Very rare
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Give examples of bad reactions you could get from vaccines?
Swelling or something more serious like a fever or seizures
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What have vaccins helped to control?
Many communicable diseases that were once common in the UK (polio, measles, whooping cough, rubella, mumps and tetanus
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Why doesnt smallpox occur anymore?
Because of vaccines
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How many percent have polio infections fallen by?
99%
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What are big outbreaks of diease called?
Epidemics?
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How can epidemics be prevented?
if a large percentage of the population is vaccinated (people who arent vaccinated are unlikely to catch disease because there are fewer people to pass it on)
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What happens if a significant number of people arent vaccinated?
the disease can spread quickly through them and lots of people will be ill at the same time
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Other cards in this set
Card 2
Front
What do the dead pathogens carry?
Back
Pathogens
Card 3
Front
What do pathogens cause?
Back
Card 4
Front
What does the MMR vaccine contain?
Back
Card 5
Front
What happens if live pathogens of the same type appear after the vaccine?
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