Campylobacter group II phage CP21 is the prototype of a new subgroup revealing a distinct modular genome organization and host specificity

Table 1 Host ranges of the investigated Campylobacter group II phages

Campylobacter phage	CP68	CP75	CP84	CP7	CP83	CP21	IBB_35 ^a
Infected strains	31 (255)	30 (255)	34 (255)	19 (255)	15 (255)	17 (255)	12 (90)^a
% positive	12.2	11.8	13.3	7.5	5.9	6.7	13.3
C. jejuni strains	21 (227)	20 (227)	24 (227)	14 (227)	13 (227)	13 (227)	5 (76)^a
% positive	9.3	8.8	10.6	6.2	5.7	5.7	6.6
C. coli strains	10 (18)	10 (18)	10 (18)	5 (18)	2 (18)	4 (18)	7 (14)^a
% positive	55.6	55.6	55.6	27.8	11.1	22.2	50.0
C. lari strains	0 (5)	0 (5)	0 (5)	0 (5)	0 (5)	0 (5)	0 (5)
% positive	0	0	0	0	0	0	0
C. fetus strains	0 (2)	0 (2)	0 (2)	0 (2)	0 (2)	0 (2)	0 (2)
% positive	0	0	0	0	0	0	0
C. sputorum strains	0 (2)	0 (2)	0 (2)	0 (2)	0 (2)	0 (2)	0 (2)
% positive	0	0	0	0	0	0	0
C. hyointestinalis strains	0 (1)	0 (1)	0 (1)	0 (1)	0 (1)	0 (1)	0 (1)
% positive	0	0	0	0	0	0	0
Phage subgroup	A	A	A	B	B	B	(A)

^aFor the determination of the IBB_35 host range, only C. jejuni and C. coli strains were tested that were lysed by any other phage

ISSN: 1471-2164