Cases of sheep-aborting disease Salmonella Brandenburg in the
South this year appear to be ''nothing out of the ordinary'',
South Otago vet John Smart says.
While it was ''slightly worse'' than the past couple of
years, cases were the lowest for a while.
It was nothing like the late 1990s, when there was a big
epidemic phase. The past couple of years had been ''a bit of
a trough'' and Mr Smart, of Clutha Vet, suspected there would
be a ''little bit of a rise'' again.
Over about a week, he was aware of between about 25 and 30
farms being affected but it was difficult to gauge an
accurate number, he said.
Since initially being found in Canterbury, Salmonella
Brandenburg had gradually moved south.
Not only did it cause abortion but it also made ewes
seriously ill. It was very infectious and spread easily
between flocks, with black-backed gulls a major vector.
For the foreseeable future, Mr Smart expected it would always
''crop up'', and there would be a few cases, towards the end