[Legionellosis in a site with low risk of proliferation].

After three cases of legionellosis associated with a spa were identified, an investigation was conducted to confirm the source of infection, determine the risk factors, and establish control measures. Between November 26, 2008 and September 16, 2009, six inspections were carried out, samples were collected for Legionella pneumophila isolation, and water temperature was determined at all the sampling points of the hot water system and at the spa pools. The presence of L.

[Norovirus outbreaks in hospitals and nursing homes in Catalonia, Spain].

Background: The low infectious dose and multiple transmission routes favour the appearance of norovirus outbreaks. The objective of this study was to compare the incidence of norovirus outbreaks in hospitals and nursing homes in Catalonia.

Methods: A descriptive study of norovirus outbreaks between 15/10/2004 and 30/10/2005 was carried out.

[Semicircular lipoatrophy: a new occupational disease].

In February 2007, an outbreak of 200 cases of a rare condition called semicircular lipoatrophy was notified by a company of Barcelona with about 1,000 workers. In September of that year, more that 600 cases had been notified in other workplaces, most of them in Barcelona, but also in other Spanish cities. A case-control study identified the low indoor relative humidity and working tables with thin edges as risk factors.

Transmission of hepatitis C virus during computed tomography scanning with contrast.

Six cases of acute hepatitis C related to computed tomography scanning with contrast were identified in 3 hospitals. A patient with chronic hepatitis C had been subjected to the same procedure immediately before each patient who developed acute infection. Viral molecular analysis showed identity between isolates from cases with acute and chronic hepatitis C.

[Community outbreak of pneumonia due to Legionella pneumophila: importance of monitoring hospital cooling towers].

Objective: Description of an outbreak of legionnaires' disease originating in one of the cooling towers of a hospital.

Patients And Methods: This study included patients with confirmed pneumonia caused by Legionella pneumophila serogroup 1 and related to the Vallcarca neighborhood of Barcelona (Spain) in August 2004. Exposure was determined by a standardized questionnaire.