Monday, October 11, 1999 Published at 15:39 GMT 16:39 UK
Warning over threat from bacteria
The bacteria affects many cystic fibrosis sufferers
Scientists say that an antiobiotic-resistant bug which usually affects vulnerable cystic fibrosis patients could become a major public health problem.
It is responsible for serious lung infections in people suffering from cystic fibrosis, and can shorten their life expectancy by as much as 10 years.
However, Dr Anthony Webb, from the cystic fibrosis unit at Wythenshawe Hospital in south Manchester, warned that the infection was increasingly appearing in other patients.
Similar to Legionnaires'
He said that it was important that the medical community was made aware of the potential threat, likening it to the arrival of Legionnaires' Disease, which was completely unknown when people first fell ill in 1976.
He said that a recent outbreak had affected 74 intensive care patients in an Arizona hospitals, all of whom had been infected by a contaminated mouthwash.
Another outbreak in a Mississippi hospital involved the infection of 245 patients who were not suffering from cystic fibrosis.
Another concern held by scientistscentres on attempts to harness the ability of the bacteria to kill the fungal diseases of crops.
They believe that incorporating the bug into pesticides only heightens the risk of transmission to humans.
Dr Webb said: "The potential use of B. cepacia as a biological pesticide which may act as a potential hazard to humans demonstrates an area of considerable conflict of interest between agricultural microbiologists and medicine."
He added that the bacterium was causing particular concern in the UK as many infections involve the most dangerous strain, known as ET-12 or "UK epidemic strain".
Sufferers of cystic fibrosis are vulnerable to predatory infections like B. cepacia because mucus acculmulates in the lungs.
The infection is highly resistant to many commonly-used antibiotics.
The bacterium which causes Legionnaires' Disease, a dangerous form of pneumonia, was unknown until an outbreak in an American hotel.
The bacterium, "Legionella", can be found in air conditioning and humidification systems.