Programme Results

Table showing full year results for each year from 2013 to 2024, plus results for 2025 to the date/week shown. The corresponding 2024 and 2025 data of the same week is also shown for comparison.
				19/03/2025
	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	2024- Week 12	2025- Week 12
Calves Tested	2,095,705	2,131,756	2,264,530	2,324,870	2,347,128	2,346,983	2,345,673	2,382,202	2,430,316	2,434,405	2,386,471	2,321,429	1,020,639	953,796
% Negative	98.03%	98.54%	98.85%	99.20%	98.85%	98.58%	98.96%	99.10%	99.21%	98.90%	98.98%	99.07%	99.14%	99.26%
% (Number) Positive*	0.77% (16,191)	0.50% (10,758)	0.36% (8,246)	0.20% (4,540)	0.12% (2,842)	0.07% (1,531)	0.05% (1,111)	0.03% (807)	0.03% (810)	0.03% (750)	0.03% (701)	0.02% (485)	0.01 (106)	0.02 (219)
% (Number) Inconclusive*	0.03% (661)	0.01% (119)	0.01% (207)	0.00 (59)	0.01% (118)	0.00% (47)	0.00% (15)	0.00% (15)	0.00% (5)	0.00% (6)	0.00% (9)	0.00% (2)	0.00% (0)	0.00% (2)
% (Number) Empty	1.13% (23,750)	0.92% (19,675)	0.73% (16,632)	0.59% (13,717)	1.01% (23,711)	1.33% (31,114)	0.94% (22,080)	0.82% (19,421)	0.73% (17,703)	1.05% (25,455)	0.98% (23,427)	0.85% (19,662)	0.74% (7,551)	0.70% (6,710)
% (Number) BVD+**	0.66% (13,877)	0.46% (9,733)	0.33% (7,427)	0.16% (3,808)	0.10% (2,397)	0.06% (1,325)	0.04% (987)	0.03% (724)	0.03% (788)	0.03% (707)	0.03% (625)	0.02% (444)	0.01% (102)	0.02% (212)
% (Number) BVD+** recorded dead	100% (13,876)	100% (9,733)	100% (7,427)	100% (3,808)	100% (2,397)	100% (1,325)	100% (987)	100% (724)	100% (788)	100% (707)	100% (625)	100% (444)	79% (77.5)	49.1% (104)
% (Number) of positive herds	10.13% (8218)	7.15% (5,711)	5.42% (4,286)	2.86% (2211)	1.72% (1,306)	1.00% (742)	0.69% (501)	0.53% (379)	0.52% (367)	0.44% (304)	0.39% (262)	0.32% (199)	0.15% (53)	0.23% (77)
% (Number) of herds retaining one or more BVD+ calves born in stated year *	0.00% (0)	0.00% (0)	0.00% (0)	0.00% (0)	0.00% (0)	0.00 (0)	0.00 (0)	0.00% (0)	0.00% (0)	0.00% (0)	0.00% (0)	0.00% (1)	0.01% (2)	0.01% (4)
No. of breeding herds with Negative Herd Status													76,681	75,997
*Based on initial tag test result, prior to any confirmatory testing.
**Calves with an initial positive or inconclusive result without a negative retest result.
*** BVD+ calves are retained when alive for more than 7 weeks (2013-2016) or 5 weeks (2017 and 2018) or 3 weeks (2019 – to date) after the date of the first test

BVD Maps

Maps showing distribution of BVD-positive births during each year of the BVD eradication programme. Each hexagon represents an area of approximately 10km². Cells with thick blue borders have low numbers of cattle (e.g. mountainous areas, lakes, rivers, towns, cities).