Table showing full year results for 2013, 2014, 2015 and 2016, plus results for 2017 to the date/week shown. The corresponding 2015 and 2016 data of the same week is also shown for comparison.
					01/11/2017
	2013	2014	2015	2016	2016   Week 44	2017   Week 44
Calves Tested	2,095,761	2,131,863	2,264,318	2,322,684	2,156,863	2,181,093
% Negative	98.03%	98.54%	98.85%	99.20%	99.25%	98.87%
% (Number) Positive*	0.77% (16,194)	0.50% (10,756)	0.36% (8,244)	0.20% (4,537)	0.19% (4,038)	0.12% (2,598)
% (Number) Inconclusive*	0.03% (661)	0.01% (119)	0.01% (202)	0.00% (50)	0.00% (38)	0.01% (114)
% (Number) Empty	1.17% (24,472)	0.95% (20,164)	0.78% (17,630)	0.60% (13,891)	0.56% (12,165)	1.0% (21,865)
% (Number) PI**	0.66% (13,877)	0.46% (9,731)	0.33% (7,424)	0.16% (3,805)	0.16% (3,448)	0.1% (2,180)
% (Number) PI** recorded dead	100% (13,876)	100% (9,731)	100% (7,424)	99.9% (3,801)	88.4% (3,049)	94.8% (2,066)
% (Number) of positive herds	11.27% (9,485)	7.63% (6,184)	5.92% (4,763)	3.25% (2,542)	3.08% (2,372)	1.93% (1,512)
% (Number) of herds retaining one or more PI** calves born in stated year (alive for more than 7 weeks (2013-16) or 5 weeks (2017) after the date of the first test	0.00% (0)	0.00% (0)	0.00% (0)	0.00% (3)	0.20% (152)	0.04% (27)
No. of herds with Negative Herd Status	N/A	N/A	N/A	N/A	63,694	71,031
*Based on initial tag test result, prior to any confirmatory testing **Calves with an initial positive or inconclusive result without a negative retest result
Click on the image to view maps of the number and distribution of PI animals born each year
Click on the image to view a map of the number and distribution of BVD-positive animals that are still alive