Following several cases of Legionnaire's disease, a Scots town has been treated anti-Legionnaire's chemical. The cases of infection in the area had reached double figures.
With two more patients falling ill in Renfrew area, the total number of infected patients has gone up to 10.
The bacteria that cause the disease will be dead with this measure, health chiefs say.
It is spread through aerosols produced by installations such as water-cooling towers, air -conditioning units and showers. All water-cooling towers in the Renfrew area were treated with the chemicals.
One of the patients was already recovering in hospital, health staff said. Others were recovering well at their respective homes and there were many who have already recovered.
Dr Gillian Penrice, the board's Consultant in Public Health, said, "We have notified all community GPs and our frontline hospital teams to keep this outbreak uppermost in their minds when dealing with patients displaying
-symptoms of headache, fever, dry cough, breathing difficulties, stomach pains and diarrhoea."
People have been advised that they must visit their GP immediately if they experience any symptom.