Diagnostic studies of abortion in Danish cattle 2015–2017

Table 5 Summary of diagnostic findings in bovine abortion cases from Denmark investigated at the National Veterinary Institute between 1995 and 2017

Cause of abortion	Study [5] % of total	This study % of total	Bovine abortions investigated at the National Veterinary Institute, Denmark [11] % of total^a
Cause of abortion	Study [5] % of total	This study % of total	1996	1997	1998	1999	2000	2001	2014^g
Diagnostic group 1^b	35	33	43	34	42	38	43	38	33
Bovine viral diarrhoea virus	13	< 1	7	7	4	1	1	0	1
Protozoal abortion^c	10^d	19^e	16^f	15^f	21^f	25^f	16^f	17^f	10^d
Trueperella pyogenes	2	3	8	3	6	5	7	2	6
Bacillus licheniformis	4	NA	5	2	3	1	1	1	2
Staphylococcus aureus	NA	2	< 1	1	2	1	3	3	NA
Listeria monocytogenes	< 1	1	< 1	1	2	0	0	0	2
Other bacterial species	1	3	3	1	1	1	6	5	11
Fungi	5	1	2	3	3	4	9	10	1
Diagnostic group 2^b	12	38	8	8	10	7	8	15	42
Diagnostic group 3^b	6	9	9	3	4	11	1	8	NA
Diagnostic group 4^b	46	20	40	55	45	44	48	39	21
Total investigated cases	186	162	233	189	192	169	150	89	139

^aData for 1995 and 2015–2017 are from [5] and the current study, respectively
^bAccumulated figures within the respective diagnostic group
^cDiagnostics for neosporosis began at the end of 1994
^dHistologically identified cases confirmed by immunofluorescence and/or maternal serology
^eDiagnosis based on histological findings from H&E stained tissue sections
^fCombination of histological findings from H&E stained tissue sections and immunofluorescence used to establish diagnosis
^gNovember 2013 to December 2014

ISSN: 1751-0147