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Rainbow web

In fact, it's an extreme close-up of our body's defence system: immune cells (blue) are trapping tuberculosis bacteria (pink) in web-like structures (yellow).

Is this a multi-coloured artwork celebrating National Coming Out Day, a new species of coral, or maybe Heston Blumenthal's famous molecular dessert? Have a guess and discuss your ideas as a group! In fact, it's an extreme close-up of our body's defence system: immune cells (blue) are trapping tuberculosis bacteria (pink) in web-like structures (yellow).

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