Had four cases of listeria in the last month.
All started with a ewe lamb who was cudding badly. We thought it was just a bit of bad breeding cause we haven't had a cudder in years. Then her ear started to droop down and she had a raging temperature.
We treated with antibiotics and checked her mouth for a tooth abscess. Nothing, anyway she made improvement and slowly got better with some more antibiotics.
Then this last week we saw another big ram lamb same symptoms dooping ears cudding walking into things we immediately looked through all our books and rang our vet and we all came to the conclusion it was either CCN or listeria so we gave vitamin jabs and antibiotics plus a painkiller.and he started to make progress all be it slowly. These are big strong 7 month old lambs
We have since had two more cases which we caught really early and we now are sure it's Listeria. Apparently birds and vermin can bring it to the feeders, it can't be silage or haylage cause we are not feeding that this time of year.
We have a friend in Somerset who also had two similar cases but he had to destroy them when they went downhill fast. I think we caught ours early enough.
I do wonder if the weather has any effect on the bacterium multiplying we have had alternately hot cold then wet and warm not a usual summer at all, very strange.
So we are keeping a close watch. thankfully it's only in one isolated paddock so far and not in our breeding ewes or show stock

we are quarenting that paddock as much as possible but you can't stop birds from moving around so we will just have to hope we've seen the last case.