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Thinking like a parasite.
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I am a parasite.
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I need food and shelter, and somewhere warm perhaps.
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And I don't want to go and find food.
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I'd like it to come to me,
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so I'm going to live inside another organism.
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I need a host.
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I could travel in the water, sneak into your glass of juice or maybe in food, gulp me up and I can get inside you.
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Or perhaps I could just wait until one host touches another.
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I'm the champion of causing water and food borne illness.
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I'm only tiny, so nobody will see me.
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In fact, some of us are just single-celled organisms.
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Although, you might spot one of the worms.
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Oh, a human.
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They can be a great host for parasites like viruses or worms.
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I also like animals too.
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I can go from human to human, human to animal, animal to human, whatever comes my way.
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Host provide somewhere for us parasites to live, grow, and reproduce.
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But sorry, we do cause harm.
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We secrete toxins.
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And yes, we are sneaky.
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We don't want you to get rid of us, so we will fight your immune system.
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But don't worry, we shouldn't kill you, then we'd have no food.
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Sometimes you can hardly tell I'm here, but I guess sometimes parasites cause a lot of nasty symptoms.
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If you're lucky, you won't be a permanent host.
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Some of us parasites use different humans and animals throughout our developmental stages.
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I might even pop out when you're on the loo.
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Let's snuggle down into those tissues and organs.
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I like to be in the gastrointestinal tract, but other parasites float around in the blood like malarial parasites.
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Ooh, vitamins, I'll take those and some amino acids too.
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No wonder, I make you feel poorly.
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Sorry to harm you.
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I'm benefiting at your expense.
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But that's what parasites do.
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Whilst I'm here, I need to reproduce.
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Live, grow, and multiply, that's what I say.
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I always reproduce at a much faster rate than my host.
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Anyway, host, thanks for my food, water, heat, habitat, and impending transmission, I'm off.