TABLE 1.

Identification of species and subgroups of 691 clinical Legionella isolates received by the NRCL between January 1998 and December 2002

Legionella sp. and serogroup	No. of isolates	%
L. pneumophila	681	98.6
1	613	88.7
2	5	0.7
3	19	2.75
4	1	0.14
5	6	0.87
6	11	1.6
7	1	0.14
9	1	0.14
12	1	0.14
14	1	0.14
Unknown	22	3.2
L. longbeachae	4	0.6
L. anisa	4	0.6
L. dumoffii	1	0.14
L. gormanii	1	0.14
Total	691	100