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Discussion on Prolonged swelling from vaccination
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Member:
mjane
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Posted on Friday, Jun 3, 2011 - 1:21 am:
Dr O,
It has been six weeks since my vet vaccinated my 7 horses with Prestige V, Rabies and Vetera West Nile. Four developed significant swelling at the injection site on their necks which abcessed about a week later. I had the vet back to open and drain them. This had never happened with them before. They are finally getting back to normal except for one mare whose swelling has not decreased. The site looks like a softball has been cut in half and place under the skin. It is also very hard, as were the the ones on the other horses that abcessed. The vet doesn't know what the problem can be unless it was a reaction to the Vetera West Nile vaccine since it is a different brand from what was used last year.
I am concerned about this swelling and wonder if there could be something more going on. Six weeks seems a long time to show no improvement. Any thoughts or suggestions?
Thanks,
Jane
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Moderator:
DrO
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Posted on Friday, Jun 3, 2011 - 8:10 am:
Hello Jane,
Are there signs of pain or fever present?
DrO
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Member:
mjane
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Posted on Friday, Jun 3, 2011 - 9:53 am:
No. She wants to have the area scratched or rubbed.
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Member:
mjane
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Posted on Saturday, Jun 4, 2011 - 1:59 pm:
Dr. O,
The size of the swelling has not changed however the shape has. It seems to have elongated vertically and makes it difficult for her to turn her head and neck around to scratch her side in either direction. There is still no fever and pain is not present unless I press hard on the swelling. Could there be an abscess under the hard swelling and if so could it be detected on ultrasound?
Thanks,
Jane
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Moderator:
DrO
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Posted on Sunday, Jun 5, 2011 - 9:47 am:
Perhaps a sterile abscess and yes ultrasound would be the best next step to characterize this swelling. Alternatively a sterile prep and a 18 gauge needle might find a fluid (serum / purulent) pocket.
DrO
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