Scientists at The University of York, UK, have developed a new test that uses cells derived from jellyfish to detect cancers deep within the human body.

The scientists isolated green fluorescent protein from a common jellyfish, known as crystal jelly, and developed an altered form of protein – a red fluorescent protein that glows in the dark.

In the procedure viruses containing the proteins are aimed at tiny bundles of cancers spread throughout the body.

The viruses grow within the body and then stop, thereby multiplying the red fluorescent proteins.

When a specially developed camera is switched on, the proteins flare up, revealing the location of the cancer cells within the body.

The cancer diagnostic test is expected to be ready for clinical trials within five years.