. 2020 Mar 19;25(11):1900462. doi: 10.2807/1560-7917.ES.2020.25.11.1900462

Table 3. Identified risk factors of diphtheria cases and non-toxigenic toxin-bearing Corynebacterium diphtheriae isolates, United Kingdom, 2009–2017 (n = 43).

Risk group	NTTB	Toxigenic Corynebacterium diphtheriae	Toxigenic Corynebacterium ulcerans
Animal contact^a	0	0	15
Contact of case	0	1	0
Underlying skin condition	5	0	0
Travel^b	0	14	0
None known	5	3	0

NTTB: non-toxigenic toxin gene-bearing.

^a Contact reported with dogs (12 cases), cats (7 cases), rabbits (3 cases), horses (2 cases), sheep (1 case) and guinea pigs (1 case).

^bThe suspected countries of importation were Samoa, India, Pakistan, Sri Lanka, Thailand, The Philippines (3 cases), Congo, Ghana (2 cases), Sierra Leone (2 cases), and Somalia

Table 3. Identified risk factors of diphtheria cases and non-toxigenic toxin-bearing Corynebacterium diphtheriae isolates, United Kingdom, 2009–2017 (n = 43).

Table 3. Identified risk factors of diphtheria cases and non-toxigenic toxin-bearing Corynebacterium diphtheriae isolates, United Kingdom, 2009–2017 (n = 43).