04/09/2026
๐ฆ๐ฎ๐น๐บ๐ผ๐ป๐ฒ๐น๐น๐ฎ ๐๐ฟ๐ฎ๐ป๐ฑ๐ฒ๐ป๐ฏ๐๐ฟ๐ด
We are continuing to see an increasing number of farms in our area being diagnosed with ๐ฆ๐ฎ๐น๐บ๐ผ๐ป๐ฒ๐น๐น๐ฎ ๐๐ฟ๐ฎ๐ป๐ฑ๐ฒ๐ป๐ฏ๐๐ฟ๐ด. Given the rise in cases locally, it's important that farmers are aware of this disease and its potential impact on their herds.
In cattle, ๐ฆ๐ฎ๐น๐บ๐ผ๐ป๐ฒ๐น๐น๐ฎ ๐๐ฟ๐ฎ๐ป๐ฑ๐ฒ๐ป๐ฏ๐๐ฟ๐ด can cause late-term abortions (particularly in first-calving heifers), fever, diarrhoea, reduced milk production, and, in severe cases, death. Prior to 2025, most reported cases were in the South Island, with only occasional cases in the North Island. However, the distribution changed significantly in 2025, with a notable increase in cases in the Taranaki region, particularly around Kaponga, Manaia, and Opunake.
In herds recently affected within our practice area, we have seen a range of signs including:
โข Slipped calves/abortions
โข Scouring cows
โข Reduced milk production
โข Cows that recover clinically but fail to return to previous production levels
โข Deaths in severe cases
โข Scouring and unwell calves
Salmonella Brandenburg is also a ๐๐ผ๐ผ๐ป๐ผ๐๐ถ๐ฐ ๐ฑ๐ถ๐๐ฒ๐ฎ๐๐ฒ, meaning it can be transmitted from animals to people, where it may cause diarrhoea, lethargy, and other gastrointestinal symptoms.
A vaccine is available to help reduce the risk of Salmonella infection and can also be used during an outbreak to help limit the spread and severity of disease within a herd.
If you would like to discuss Salmonella Brandenburg or develop the best prevention strategy for your herd, please contact the clinic.