Table 1

Results of the B237 infection trial (Panel 1): Serological testing, re-isolation of MmmSC and pathological findings from challenged cattle*

Animal-No.

in-house CFT

CIRAD CFT

cELISA

IBT

Re-isolation

Days after infection at slaughter

Lung lesions (size)

Titer

Result

Titer

Result

Inhibition [%]

Result


505

0

-

0

-

28.7

-

+

yes

44

RC (9 cm)

506

0

-

0

-

34.0

-

-

yes

47

no lesion

509

0

-

10

+

62.3

+

+

yes

29

whole left side with consolidation

513

640

+

160

+

41.6

amb

+

yes

29

whole lung with consolidation

515

5

-

0

-

29.1

-

+

yes

44

no lesion

519

160

+

80

+

70.1

+

+

yes

47

RC and RD (9 cm each)

520

0

-

0

-

20.4

-

amb

no

47

no lesion

522

160

+

40

+

56.7

+

+

yes

47

whole left side with consolidation

525

160

+

40

+

51.2

+

+

yes

29

whole lung

527

320

+

80

+

61.6

+

+

yes

44

RA (5 cm)

532

0

-

0

-

46.7

amb

-

yes

47

fibrous adhesions

539

0

-

0

-

19.5

-

amb.

yes

47

no lesion

542

1280

+

640

+

42.5

amb

+

yes

29

RA and RC (9 cm each)

543

160

+

80

+

54.0

+

+

yes

44

RA and RC (9 cm each)

544

0

-

0

-

32.1

-

+

yes

44

no lesion


* All animals that were examined pathologically have been included (15/30 animals).

RA = right apical lobe, RC = right cadiac, RD = right diaphragmatic, amb = ambiguous (aberration from standard band pattern).

The CFT titre is given as the inverse of the highest dilution yielding 100% inhibition of haemolysis.

Schubert et al. BMC Veterinary Research 2011 7:72   doi:10.1186/1746-6148-7-72

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