TABLE 2.

Distribution of serogroups of L. pneumophila

Gene	SG (strain) belonging to subgroup
	P-I	P-II	P-III	P-IV	F-I	F-II	Othera
rpoB	1 (Philadelphia-1)	1 (Knoxville-1)	2	14	5	4	1 (SF9)
	1 (OLDA)	3	6		15		7
	13b		12				8
							9
							10
							11
dotA	1 (Philadelphia-1)	1 (Knoxville-1)	2	14	5	4	7
	1 (OLDA)	3	6			15	8
	1 (SF9)b	10	9				11
			12				13

^aReference strains not belonging to any subgroup in this study.

^bStrain not belonging to subgroup P-I in a strict sense.