A man used AI to help make a cancer vaccine for his dog – an oncologist urges caution

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An Australian tech entrepreneur has helped create what appears to be a made-to-measure cancer vaccine for his dog, Rosie, using artificial intelligence tools such as ChatGPT as part of the process.

The science behind this sounds intimidating – DNA sequencing, mRNA vaccines, “neoantigens” – but at its core, it is about reading the instructions inside a tumour and then writing a new set of instructions to help the immune system see it.

Rosie...