Question: Claim: "Cyanobacteria inject poisonous fluids into host cells, making them dangerous to humans."\nIs the claim above correct, and can it be verified by human common sense and without a web search?\nOptions:\n- yes\n- no Let's think first. Step-by-step reasoning:
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Cyanobacteria, while can cause infections, are not usually dangerous to humans in small amounts.
So, the final answer is no.
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