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. 2025 Mar 31;5:94. [Version 1] doi: 10.12688/openreseurope.19270.1

Table 2a. Abortion diagnosis in France (reporting partners: ANSES and INRAE).

Pathogen / Test 1 Histopathology Bacteriology (culture) Serology PCR or RT-PCR
Coxiella burnetii S VS; P; F; FSC
Anaplasma sp. S - A. marginale: B
- A phagocytophilum: B; P; VS
Brucella sp. VS (if serology positive) S (mandatory) VS (if serology positive)
Campylobacter fetus (subsp.
fetus and v enerealis - cattle)
ES
Chlamydia abortus S VS; P; F; FSC
Leptospira sp. S P; FSC; VS
Other bacteria (e.g.
Salmonella sp., Listeria sp.,
Yersinia sp., Trueperella sp.,
Bacillus sp.)
Salmonella sp. & Listeria
sp.: FSC; F (spleen, liver,
brain); VS; P
Salmonella sp.:
S (SAT)
Salmonella sp.: FSC (primarily);
F (spleen, liver); VS
Neospora caninum F (brain) S F (brain)
Toxoplasma gondii S F (brain, primarily; umbilical
cord, possible); P)
Bluetongue virus* B
Pestivirus (BD / BVD) S - BD: B (stunted or sick
newborns); F (spleen
primarily, brain, liver);
P - BVD: F (spleen); P
Schmallenberg virus* Congenital
malformations
F (brain primarily, blood, spleen)
Mycoses (particularly
Aspergillus)
If culture positive P, FSC

B, maternal blood (in EDTA-tube); ES, endocervical swab; F, fetus; FSC, fetal stomach contents; P, placenta (taken from the uterus); S, maternal serum; VS, vaginal swabs. SAT, serum agglutination test.

1 According to the OSCAR protocol except for some agents, indicated here by an asterisk, considered as abortifacients in specific contexts.