Table 1.

Brucella strains studied (reference and field strains)

Reference and marine strains
Species	Biovar	Strain	Host
B. abortus	1	544 (ATCC 23448; BCCN R4)a	Cattle
B. abortus	2	86/8/59 (ATCC 23449; BCCN R5)a	Cattle
B. abortus	3	Tulya (ATCC 23450; BCCN R6)a	Human
B. abortus	4	292 (ATCC 23451; BCCN R7)a	Cattle
B. abortus	5	B3196 (ATCC 23452; BCCN R8)a	Cattle
B. abortus	6	870 (ATCC 23453; BCCN R9)a	Cattle
B. abortus	9	C68 (ATCC 23455; BCCN R11)a	Cattle
B. melitensis	1	16 M (ATCC 23456; BCCN R1)a	Goat
B. melitensis	2	63/9 (ATCC 23457; BCCN R2)a	Goat
B. melitensis	3	Ether (ATCC 23458; BCCN R3)a	Goat
B. suis	1	1330 (ATCC 23444; BCCN R12)a	Swine
B. suis	2	Thomsen (ATCC 23445; BCCN R13)a	Swine
B. suis	3	686 (ATCC 23446; BCCN R14)a	Swine
B. suis	4	40 (ATCC 23447; BCCN R15)a	Reindeer
B. suis	5	513 (BCCN R21)a	Wild rodent
B. ovis		63/290 (ATCC 25840; BCCN R17)a	Sheep
B. canis		RM6/66 (ATCC 23365; BCCN R18)a	Dog
B. neotomae		5K33 (ATCC 23459; BCCN R16)a	Desert rat
B. pinnipediae		B2/94 (BCCN 94-73)	Common seal
B. cetaceae		B1/94 (BCCN 94-74)	Porpoise
B. cetaceae		B14/94 (BCCN 94-75)	Common Dolphin
Overview of the 236 additional isolates
Species	Biovar	Number of isolates investigated
B. abortus	1	14
B. abortus	3	20
B. abortus	4	1
B. abortus	6	5
B. abortus	7	2
B. abortus	9	2
B. abortus	(rough)	1
B. melitensis	1	13
B. melitensis	2	13
B. melitensis	3	11
B. melitensis	(atypical)	1
B. melitensis	(rough)	2
B. suis	1	13
B. suis	2	87
B. suis	3	5
B. suis	4	5
B. suis	5	1
B. suis	(rough)	1
B. ovis		23
B. canis		16
total		236

^a: Reference strain

ATCC, American type culture collection

BCCN, Brucella culture collection, Nouzilly, France