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Table 5 Serum resistance distribution among different LPS-types of 298 Y. enterocolitica BT 1A strains and 83 Y. enterocolitica strains of other biotypes

From: Clinical isolates of Yersinia enterocolitica Biotype 1A represent two phylogenetic lineages with differing pathogenicity-related properties

LPS-type

0 (all dead)

+ (0.01-5%)

++ (5–50%)

+++ (> 50%)

No. of strains

(n = 381)

A1 (O:41(27)43; O:41, 43)a

3

2

2

0

7

A2 (O:10) d

6

1

4

1

12

A2 (O:10) Gen. group 2

1

2

9

1

13

A2 (BT 2/O:9)b

1

3

1

0

5

A3 (O:1; O:2; O:3)

1

0

0

1

2

A3 (O:1; O:2; O:3) Gen. group 2

1

0

0

0

1

A3 (BT 3–4/O:3)b

1

4

25

46

76

B1 (O:13,18; O:25)

10

2

3

2

17

B2 (O:7,8; O:13,7; O:50) c

70

4

2

1

77

B3 (O:14; O:34; O:4,32)

3

1

0

0

4

B4 (O:4; O:8; O:21; O:35,42)

1

0

0

0

1

C1 (O:6; O:6,30; O:6,31)d

36

33

35

5

109

C2 (BT 1A/O:5)b

6

10

15

14

45

D (rough/semi-rough)

8

1

0

0

9

D (rough/semi-rough) Gen. group 2

1

0

2

0

3

  1. The strains belong to biotype 1A and Genetic group 1 unless otherwise indicated.
  2. a The known serotypes with similar LPS structure shown in parenthesis.
  3. b Serotype confirmed with agglutination test.
  4. c Serotype confirmed with O:8 agglutination test for 56 strains.
  5. d This group contains one non-biotypeable Y. enterocolitica strain.