Fighting disease: Vaccination
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4 Terms
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Vaccinations
Injecting small amounts of dead or inactive pathogens into a person's bloodstream. The pathogens carry antigens which triggers the immune system to produce antibodies to attack them.
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What happens when live pathogens of the same type appear after being vaccinated?
The white blood cells can rapidly mass-produce antibodies to kill off the pathogens
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What are the pros of vaccination?
- Helped control lots of communicable diseases that were once common
- Epidemics can be prevented if a large percentage of the population is vaccinated
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What are the cons of vaccination?
- Vaccinations don't always work
- Sometimes have bad reactions to vaccine
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