Plagues, Pestilences and Diseases
18 September 2010 Last updated at 13:02 ET
Legionnaires' disease cases rise to 20 in south Wales valleys
Legionella bacteria Legionnaire's kills between between 10 - 15% of its
victims
The 20th case of Legionnaire's disease has been confirmed in the Heads
of the Valleys' outbreak, in south Wales.
Three people have died from the disease, but only one of the deaths was
linked to the valleys' outbreak.
Bev Morgan, 49, from Rhymney, in Caerphilly county, died in hospital on
Sunday in the outbreak in south Wales.
Public Health Wales is still waiting results of tests from three
industrial sites in the area to find the source.
Investigations are focussing on a cluster of seven people linked to
Rhymney.
A further potential cluster of four people in the Cynon Valley is being
investigated. The other nine people have various links and connections
across the outbreak area.
The 20th case is the first new case since 10 September.
The outbreak area is the corridor 12km (7.5 miles) either side of the
Heads of the Valleys road between Abergavenny in Monmouthshire and
Llandarcy in Neath Port Talbot.
Location map Map showing the areas, mostly in the valleys, where the
investigation is concentrating
A solicitor representing victims has called for tighter regulations to
help prevent outbreaks.
Philip Banks, of solicitors Irwin Mitchell, said there needed to be
better regulation of cooling towers and other equipment which have been
at the centre of the investigation.
"A system could be put in place, for example an MoT system where
companies have to have a certification system in place [where] they are
maintained, inspected, disinfected and cleaned," he said.
"That would be a step forward to stop this happening again."
Public Health Wales has defended its decision to delay alerting the
public to the outbreak.
Doctors were told about the outbreak on 3 September but the authorities
did not inform people until four days later.
Some GPs have raised concerns over the length of time taken.
However, Dr Gwen Lowe, a consultant in communicable disease control for
Public Health Wales, told BBC Wales' Week In Week Out the delay was
necessary so the health protection team could accurately assess the
situation.
She said: "The reason why we delayed the public announcement of the
outbreak was to allow our clinical colleagues and our GP colleagues to
have that information to enable them to act, to make sure we had all
the relevant information that we needed.
"You can imagine that once you declare an area you're interested in,
people's recall of where they have been actually becomes a bit muddied
by the information that is in the public domain."