The potentially deadly bug E-coli will come under the microscope today at an international conference.

Leading scientists are among those attending the Food Micro 2008 event in Aberdeen, which will look at the dangerous O157 mutant form of E-coli.

The bug is found in the intestines of people and cattle and can be passed on by eating infected food and liquid.

A main speaker will be prominent food safety expert Professor Hugh Pennington.

The University of Aberdeen scientist will ask the conference whether lessons have been learned from an E-coli outbreak in Lanarkshire in 1996.

The deadly outbreak saw 21 elderly people killed after eating contaminated meat from a butcher.

Mr Pennington is currently chairman of a public inquiry into a 2005 outbreak of the bug in Wales, which killed a five-year-old and left 150 others, mainly school children, ill.

The 850 delegates from 50 countries will also hear of research at the University of Aberdeen that shows E-coli infections in humans are more likely to have come from cattle than sheep.

It is hoped the research will help in the fight against the bug, which is more common in north-east Scotland than anywhere else in the UK.

Iain Ogden, senior research fellow at the University of Aberdeen, said: "Food Micro 2008 is the biggest food microbiology conference that has taken place in Europe.

"It is a tremendous opportunity for food microbiologists to share the latest thinking on key food safety issues that touch the lives of millions of people all around the world."

The conference begins today and runs until Thursday at the Aberdeen Exhibition and Conference Centre.