B1.1.4 Pathogens and disease

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What do pathogens cause?
Infectious diseases
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What are pathogens?
Tiny microorganisms- usually bacteria or viruses
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How do bacteria or viruses make you feel ill?
By entering the body, reproducing rapidly and producing toxins
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How do viruses work?
They damage cells when they reproduce inside them
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What is a virus?
DNA wrapped in protein
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What did Semmelweiss realise?
That infection could be transferred from person to person in a hospital
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What did he tell doctors to do and what was their reaction?
To wash their hands, but they didn't take him seriously
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Card 2

Front

What are pathogens?

Back

Tiny microorganisms- usually bacteria or viruses

Card 3

Front

How do bacteria or viruses make you feel ill?

Back

Preview of the front of card 3

Card 4

Front

How do viruses work?

Back

Preview of the front of card 4

Card 5

Front

What is a virus?

Back

Preview of the front of card 5
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