An outbreak of legionnaires' disease has been identified
in north east Spain among people who stayed in the natural spa resort of Cestona
in the province of Guipúzcoa between 1 and 22 May 1999.
The first case was diagnosed on 20 May. By 31 May 1999, two
confirmed cases had been diagnosed by legionella urine antigen detection test,
there were six suspected cases, and 35 people were being investigated. Local
health authorities have established that 432 people were staying in the resort
during the period under investigation. Six visitors were from other European
Union countries, four from the United Kingdom (UK) and two from Portugal - none
of these is known to have become ill.
All people
who may have been exposed have been identified and are being investigated for
legionella infection.
The spa resort was closed on 22 May. The regional public
health director of País Vasco (Basque Country) has informed all doctors and the
general public. The coordinating centre of the European Working Group on
Legionella Infections (EWGLI) was informed of the
outbreak in order to follow up the possible British and Portuguese cases and
will be notified officially when all the details of the cases have been obtained
for reporting purposes.
The regional surveillance
unit, in collaboration with the National Centre for Epidemiology, has begun an
epidemiological and environmental investigation to identify the source of the
outbreak. Legionella pneumophila serogroup (sg) 1 has been recovered from water
samples taken in the spa resort.
The waters, called "guesalaga" (salt waters) were officially declared to be beneficial to the health in 1792, and in 1804 Cestona Spa was opened and tourism in the Basque Country began.
The province of Guipuzcoa has a long spa tradition. At one point there were as many as 11 public spas in the area, of wich only Cestona spa is still open today.
The original 1804 bathhouse, built directly over
the spring itself, has been renovated and modernised and continues to
offer hydroterapy tratments, while the Grand Hotel, so
emblematic of the spa, dates
from
1893.
After the great floods of 1893,
Cestona Spa´s services and installations underwent a vigorous
process of renovation. The latest hydrotherapeutic and spa technology
was installed, putting Cestona on a level with the most famous
European spas.