September 29, 2011 07:34
EEE or eastern equine encephalitis is found usually in eastern half of North America. WEE or western equine encephalitis is the form that affects usually the western half of the continent. Both are most often mosquito and biting insect-borne, humans are also occasionally affected with encephalitis through bites from affected mosquitos.
It is a later summer and early fall disease and typically the same species of mosquito, culex tarsalis , carries both "sleeping sickness" and west nile virus.
The core horse vaccines in our area (Western Canada) have always protected horses from tetanus and EEE and WEE. This is the old "3 way" vaccine. For several years now the core vaccine also includes protection from west nile virus. (4 way or combo vaccine).
Vaccines in the south and southeastern states also protect against VEE, or Venezuelan equine encephalitis.
Outbreaks occur when owners fail to vaccinate weanlings in a herd with a series of 3 vaccines or If many horse owners in an area do not vaccinate or boost annually for years and the procedure falls off the horse culture's radar, especially among novice owners. In addition outbreaks are worse in years when there are more insect vectors and birds who amplify the virus (raise the level of infected insects) Typically EEE is more often deadly than WEE. . I saw some cases when I worked in Virginia and it is very sad to see an incapacitated and unreactive horse.
The take home message is that If horse owners in our area vaccinate adult horses in late spring to mid-summer with a core vaccine booster and complete weanlings vaccine series they have protected their horses even in the face of outbreaks. Foals should be vaccinated at 3, 4, and 5 months, If mare was not boosted with vaccine a month before foaling and 4,5 and 6 months, If mare has been vaccinated a month before foaling. Adults not previously vaccinated require 2 Vaccines 4 to 6 wks apart before July. And all horses yearlings and up require annual boosters.
~Dr Lisa Wayman CPVS
September 28, 2011 07:08
Q: I got bit by a say wild kitten on 9/16. Our cat had the kitten but it hadnt been around and just showed up on the porch so I picked it up, it was scared because its not around people. The kitten bit my finger 3 times, drew blood all 3 spots, not deep. in fact it healed by say the next day. the kitten looked healthy. i seen it also 4 days later and it looked healthy. no pain at the bite site. But i havent seen the kitten since then. Coincidence or not, i started having back pain and now a lymph node in my neck is swollen. Should i be concerned about rabies or anything. I did not go to the doctor for this.
A: Definitely go see your MD. Tomorrow. Not so much for rabies risk although possible. Sounds like infection from tiny punctures from cat teeth and claws that harbour many bacteria and are too small to clean out properly. Your lymph node is enlarged because it is trying to produce cells that will fight off the bacteria. You will prob need antibiotics or can get bad quickly. If rabies on list you need to get hyper immunized ASAP that means rabies vaccine every 2 weeks for several times. Don't wait and see.
answered by: Dr.Lisa Wayman
September 22, 2011 10:12
Q: Hi Dr.Domoslai, we are looking at purchasing our first horse for our 12 year old daughter. She wants to start jumping and the horse we are looking at is a cribber. But he is a real sweet heart and my daughter loves him. However we are not 100% sure if this would be a wise investment?? If you could help us out, that would be most appreciated. Thanks so much.
A: Thanks for the question. Cribbing is a life-long issue that requires continual intensive management, with the potential for a multitude of other health issues cropping up that are directly related to the cribbing. I would consider alternate horses before making a final decision on this one. Potential options include, perhaps a 3 month trial with a total return of the horse pending the cribbing issue.
September 21, 2011 06:08
Q: What is the best way to treat scratches on a horse. Both back feet...it doesn't look really bad but enough that he doesn't like me touching it. I was thinking of putting a rope around the back feet and rubbing that back and forth to rub it off instead of trying to lift the feet and scrape it off. But what is good to put on it after? I've heard bleach but ?? What do you suggest is the best to get rid of it quickest and easiest. Thanks :)
A: Scratches is a complex disease of non-pigmented skin as it reacts to light, moisture bacteria and fungus. It is best treated with a compounded ointment that will address all of these areas. I have not found one that works good commercially and therefore we make one up with all the secret ingredients. The lesion needs to be scrubbed free of all scabby areas and the lotion applied daily for a few weeks.
September 9, 2011 17:10
This gelding is being treated with mineral suppositories and oil drenches
September 8, 2011 21:19
This young gelding presented with weight loss and a toe dragging hind legged lameness. Notice the slight rise in the croup area and the buttress toed hind limbs. An interesting note is that he has been consuming the tails of his pasture mates. He is the only long haired horse remaining. We suspect a Phosphorous/Calcium deficiency leading to irregularities or injury to the lumbar region of the spine. Concurrent with this is a possible cecal hair ball accumulation.
October 4, 2011 update. This gelding was treated with calcium and phosphorus minerals, drenched with mineral oil, no cecal hair ball accumulation has been dislodged. Coordination is degrading, if the gelding is led over a rail and can see it, he will lift his feet over. If he is led over the same rail, unable to see the rail, he will stumble. Physical condition is slowly degrading.