A Cluster of Legionnaires' Disease and Associated Pontiac Fever Morbidity in Office Workers, Dublin, June-July 2008

Table 1

Microbiological results from cooling towers 1 and 2 by PCR and culture, Dublin, July 2008.

Cooling Tower	PCR (GU/L)		Culture (CFU/L)
	Legionella spp.	L. pneumophila	Legionella spp.	L. pneumophila serogroup 1	L. pneumophila serogroup 2–14
1	61,800,000	73,200,000	< Detection level	< Detection level	< Detection level
2	174,000	<3,300	100	100	< Detection level