Table 1.

Abortions in animals

Susceptible species	Type of placenta	Average length of gestation (days)	Most susceptible stage for abortion	Brucella species	Reference
Baboon (Papio spp.)	Hemochorial	180	117 days	Brucella spp.	[8]a
Bison	Epitheliochorial	283	195–225 days	Brucella abortus	[78, 79]
Camel	Epitheliochorial	396	–	Brucella melitensis	[80]b
Canine	Endotheliochorial	65	45–55 days	Brucella canis	[81, 82]
Cattle	Epitheliochorial	283	226–242 days	Brucella abortus	[78]
			Mid to late gestation	Brucella spp.	[83]c
			180–283 days	Brucella abortus	[84, 85]
Dolphin (Tursiops truncates)	Epitheliochorial	365	270 days	Brucella delphini (ceti)	[86]d
Elk	Epitheliochorial	250	35–84 days post challenge	Brucella abortus	[87, 88]
Goats	Epitheliochorial	150	117–135 days	Brucella melitensis	[89–92]
Lama	Epitheliochorial	345	240 days	Brucella abortus	[93]
Sheep	Epitheliochorial	148	107–146 days	Brucella melitensis	[92, 94–96]
Swine	Epitheliochorial	114	May occur at anytime	Brucella suis	[51, 81, 97]

^aReported two cases of stillbirths in baboons with positive culture of a novel Brucella spp. isolate confirmed by PCR

^bBased on aborted camels tested by RBT and confirmed by CFT. Brucella melitensis was isolated from two fetuses

^cBased on 150 abortion cases positives to RBT and confirmed by PCR

^dBrucella spp. were isolated from two specimens of Tursiops truncates that aborted