If Jack has recovered from a case of strangles, he should now have residual immunity
However, he can still carry the strangles bacteria, the same as you can, or on tack, buckets or grooming kit
The strangles bacteria can survive for around 2 months in the environment, so it can be in the soil in their hooves etc.
Keep him isolated from the new case and make sure that their care is completely separate
You could use hibiscrub to reduce any contamination on jack
But I would still be careful about mixing him with other ponies for a couple of weeks
please reply if you have further questions
that hasn't really told me any more than we already thought and are doing. can jack having been in contact with a new case carry strangle, other than on himself and pass it on?
Was he given antibiotic therapy and did he develop abscesses?
he did very classic strangles, text book infact and he has been scoped to show he is not a carrier and free of the diesease, its just whether he can now carry from this fresh outbreak or worse still get it again
If he had active disease then he should be immune from getting it again for atleast a year
So if he has been scoped and tested clear, he should not be able to carry it, via his gutteral pouches etc, but could still be a physical carrier, the same as you or contaminated equipment could be
http://www.aaep.org/health_articles_view.php?id=323 an american article
I would speak to your vet, who has been on your yard, dealing with this situation. They will know how your yard is set up and the likely physical contamination, between ponies.
we have done all we can, we have shut down for 6 weeks had various tests done and reopened and now this - from all the vets can tell us i think strangles has no set time scales as many articles suggest, so thank you for your replies, you have not told me anything we did not already know, and having had to deal with strangles sending me more posts or links to read is really of no benefit, we shall continue to act responsibly and for the best of our horses, thanks Rowan
Strangles can be very frustrating, I commend your responsibility. Best wishes.