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. 2025 Jun 30;5:94. Originally published 2025 Mar 31. [Version 2] doi: 10.12688/openreseurope.19270.2

Table 2b. Abortion diagnosis in Great Britain, UK (reporting partner: APHA).

Pathogen / Test Histopathology Bacteriology Serology
(ancillary test)
PCR or RT-PCR
Culture MZN
Coxiella burnetii P P; FSC B (ELISA) P; FF
Anaplasma sp. * F B
Brucella sp. FSC; P P; FSC B (RBT, ELISA)
Campylobacter sp. FSC
Campylobacter fetus subsp.
venerealis * (cattle)
FSC
Chlamydia abortus P P; FSC B (ELISA) P
Leptospira sp. F B (MAT, ELISA) F (kidney)
Mycoplasma sp. * F See PCR 1 B ( M. bovis ELISA) FSC (culture / DGGE
/ PCR)
Tritrichomonas foetus* VF, SW 2
Ureaplasma sp. * F See PCR 1 FSC (culture / DGGE / PCR)
Other bacteria (e.g.
Salmonella sp., Listeria sp.,
Yersinia sp., Trueperella sp.,
Bacillus sp.)
P, F FSC
Neospora caninum F B (ELISA) F (brain)
Toxoplasma gondii P, F B (LAT) P (cotyledon)
Bluetongue virus * F B (ELISA) B, F (spleen, brain)
Bovine herpesvirus (BHV-1) * F B (ELISA) F (liver, lung)
Pestivirus (BD / BVD) P, F B (Antibody
ELISA; antigen
ELISA for BVD)
F (spleen or thymus)
Schmallenberg virus * F B (ELISA) B; F (brain, spinal
cord); FF
Mycoses (particularly
Aspergillus sp.)
P, F FSC (P)

B, maternal blood; FF, fetal fluids; F, fetus; FSC, fetal stomach contents; P, placenta; SW, sheath washings; VF, vaginal fluids. MZN, Modified Ziehl-Neelsen stain of smear; ELISA, enzyme-linked immunosorbent assay; LAT, Latex Agglutination Test; MAT, microscopic agglutination test; RBT, Rose Bengal test. DGGE, denaturing gradient gel electrophoresis.

* Pathogens not included in the standard abortion protocol.

1 For Mycoplasma sp. (including Ureaplasma sp.), a combined test comprising culture, DGGE, and PCR.

2 Tested by culture and microscopy

Great Britain is officially brucellosis free ( Brucella abortus, B. melitensis, B. ovis). Ruminant abortion (including premature birth) submissions are screened for Brucella sp. as part of continued surveillance.