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Last Updated: Friday August 19 2005 17:01 GMT

Croc blood could be miracle drug

Scientists looking at crocodile blood think it could hold the secret to making an amazing new medicine.

It's been known for a while that although crocs often get bad wounds from fighting each other, they heal quickly and don't get infected.

Now the scientists are collecting and studying their blood in the hope of using it to make a drug that shares its bug-fighting, healing abilities.

Crocodile blood has been known to fight off diseases like Aids and E Coli.

Croc expert Dr Mark Merchant tested croc blood and found its extraordinary powers.

He's looking at the white blood cells in samples he's taken from crocodiles.

White blood cells fight off infection by making and releasing proteins, and Dr Merchant hopes these can point the way to making new medicines.

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