While the number of affected herds is now very low, the impact of BVD remains significant for both infected herds and their neighbours. Implementing preventive measures is key to stopping the spread of the virus and achieve eradication.
Herds located near other herds with BVD positive results (BVD+) this year, specifically those within, or immediately beside the 2025-coloured hexagons in the map below are at particular risk of having infection introduced in advance of this year’s breeding season. This could lead to BVD+ calves to be born in 2026, even in herds with no history of positive results.
Scroll down to check your location in the map. You may also check previous results by selecting a particular year.
Further down the page you can find advice on cleaning and disinfection and a short video on how to protect your herd.
The following map shows county level results for BVD and is a tool that farmers can use to see areas where outbreaks are ongoing.
To view a detailed article on protecting your herd during the calving season, click here.
Topics include:
- Prompt sampling of calves
- Submitting samples to the lab
- Taking action on positive results
- Understanding Neighbourhood risk
- Managing purchased or returning cattle
- BVD Vaccination Guidelines
BVD Border Vigilance Urged Ahead of 2026 Calving Season
The following posters contain advice for farmers in border areas and vets advising farmers. The advice is valid for any farm in close proximity to positive herds, or those that want to protect their farms further against the introduction of BVD.
The posters can be downloaded and printed (link below).
To download poster 1 (farmer), click here
To download poster 2 (vet), click here
A review of on-farm biosecurity in the pre-breeding period is vital in combatting the spread of BVD. Based on the outcomes of RDP-funded TASAH investigations by trained veterinary practitioners, the following were identified as the most likely pathways by which infection was introduced to pregnant cattle during the window of susceptibility, and should therefore be the focus of biosecurity reviews. While these biosecurity reviews were carried out with BVD in mind, attention to these areas will reduce the likelihood of introducing infectious diseases in general.
- Boundary contact.
- Purchased cattle (or those returning from sales,
shows or contract rearing). - Movement of personnel without adequate
attention to hygiene. - Equipment.
- Vaccination.
To download the full factsheet, click here.