Identification and characterization of a nontypeable Haemophilus influenzae putative toxin-antitoxin locus

BMC Microbiology

Table 2 H. influenzae strains used in this study.

Strain*	Description	Type	vapD_Hiallele^†	Prevalence
R538	ATCC #9795	b	WT	100%
R539	ATCC #9006	a	WT
R540	ATCC #9007	c	WT
R541	ATCC #9008	d	WT
R542	ATCC #8142	e	WT
R543	ATCC #9833	f	WT
R652, R3460, R3539, R3540, R3541, R3542*	Rd	NTHi	WT
Strain	Anatomical site ^‡	Type	*vapD* _Hi allele	Prevalence
C378, C483, C1591, C1607, R1624, R1625, R1627, R1632, R2754, R3254, R3256, R3258, R3259, R3262, R3264, R3265, R3266, R3267, R3268, R3269, R3271, R3273, R3274, R3276. R3277, R3282, R3283, R3285	Nasopharynx	NTHi	WT	93% (28/30)
R3257, R3270			TV	7%
R2752, R3001, R3027, R3157, R3543*	Sputum/Tracheal Aspirate/Ear	NTHi	WT	50% (4/8)
R296, R2751, R2846, R3151			TV	50%
C432, R228, R2777, R3168, R3252, R3278, R3279, R3280, R3330, R3331	Blood/CSF	NTHi	WT	71% (10/14)
R2866, R3122, R3164, R3169			TV	29%

*: Asterisk denotes derivative strains, i.e. R3460 is strain R652 carrying the vector pDD515. The marked strains are not included in computing the incidence of the wild-type vapD_Hiallele versus the truncated allele. Independent strains are not marked with an asterisk. †: Type of vapD_Hiallele: WT = wild type (91 amino acids); TV = truncated version (45 amino acids). ‡: Site from which strains were isolated.

ISSN: 1471-2180