Tuberculosis caused by Mycobacterium caprae in a camel (Camelus dromedarius)

BMC Veterinary Research

Table 1 Positive animals out of the total number of camels on the farm (n = 24) to each diagnostic test in the different testing events throughout the study

Test	December 2016^e	February 2017	October 2017	February 2018	April 2018	October 2018	March 2019
SIT^a	1/24 (Animal 1)	1/1 (Animal 1)	ND	ND	2/23(Animals 2 and 4)	ND	0/20
CIT^b	ND^f	1/1 (Animal 1)	ND	ND	0/23	ND	0/20
Serology P22^c	1/1 (Animal 1)	1/24* (Animal 1)	1/24* (Animal 1)	0/23*	0/23*	ND	0/20*
DPP^d	0/1	0/24	0/24	0/23	0/23	ND	0/20
Euthanasia/natural death	–	–	–	1 animal (euthanasia, Animal 1)	2 animals (euthanasia, Animals 4 and 5)	1 animal natural death (Animal 6)	–
Pathology	ND	ND	ND	1/1 (Animal 1 TB-compatible lesions)	0/2	0/1	ND
Bacteriology	ND	ND	ND	1/1 (Animal 1-M. caprae)	0/2	0/1	ND

* Animals 2 and 3 attained inconclusive results
^aSIT: Single intradermal test. Positive if a bovine reaction of 2 or more mm or the presence of clinical signs such as oedema, exudation, necrosis, pain or inflammation at the injection site were observed
^bCIT: comparative intradermal test. Positive if a bovine reaction of 2 or more mm was observed that was greater than the avian reaction, or if the presence of clinical signs at the injection site of the bovine PPD were observed
^c P22 ELISA: positive if the E% is greater than 150% and inconclusive if the E% is between 100 and 150%
^dDPP: Dual Path Platform
^eSerology only performed on the SIT positive animal (Animal 1)
^f ND: not determined

ISSN: 1746-6148