African Horse Sickness
Early Warning System
2016/2017 outbreak.
Outbreak Alert:
Maltahoehe, NAM.
3/5/2017
Outbreak Alert:
White river, MPU.
3/5/2017
Outbreak Alert:
Kyalami, GAU.
2/5/2017
News
Urgent! Press Release
AHS Trust Research Support and Programmes
Posted: 3/2/2017, 19:58.
Notice of restricted African Horse Sickness Vaccination Period
Notice of restricted African Horse Sickness Vaccination Period
Posted: 14/4/2015, 21:33.
Surveillance
Site Information
Last Updated:
16/06/2017
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124257

Frequently Asked Questions (FAQs): Vaccination

  • My miniature mare was not vaccinated due to our suspecting she was pregnant - we had only had her two months at that stage. We have now found she is not pregnant, but am I correct in feeling it is not the time to vaccinate now? We are in the Western Province (near Gordons Bay) so not a high risk area. She was vaccinated last year January and will be done again in September when we do our others?
    Answered: 12/3/2008, 10:13 by Douglas Welsh.
    See the answer.
  • If my horses has recieved a flu vaccination,does this increase its risk of getting AHS?
    Answered: 12/3/2008, 09:59 by Douglas Welsh.
    See the answer.
  • Hi, I would like to know what the process is now for a horse that has survived AHS. should she be re-vaccinated within a few months or is this a waste of time. Also, do I need to vaccinate in future, or is there now a degree of immunity. Will this immunity only apply to the strain that she may have had now, and could she still be susceptible to other strains?
    Answered: 12/3/2008, 09:45 by Douglas Welsh.
    See the answer.
  • If my horse were to react badly to the AHS vaccine what symptoms would I look for other than a temperature?
    Answered: 12/3/2008, 09:40 by Douglas Welsh.
    See the answer.
  • In one of your aswers you have mentioned vaccinating horses twice a year, when is the best time to do these vaccinations? (And taking in consideraion the horses age?)?
    Answered: 22/2/2008, 11:50 by Douglas Welsh.
    See the answer.
  • 1) How accurate is your information on the pre-warning map, i.e. estimated percentage listed to actual cases? I've heard about several horses that had AHS (just hear say), but they don't seem to be listed. 2) I use to vaccinate in October/November, but last year my vet told me that I must vaccinate earlier, in August. Is this correct. Also heard (not from vet) that if you vaccinate to early then you get old vaccine from previous year? So when is the best time to vaccinate?
    Answered: 22/2/2008, 11:28 by Douglas Welsh.
    See the answer.
  • I have a 4 month old foal, who is hand raised (mother died at 2 months). We are now entering AHS season, is it best to vacinate now or wait till later? He is kept with his adopted mother (no drinking from her) in the evening in a stable (going in at 16:00 going out at 8 am?
    Answered: 15/2/2008, 10:49 by Douglas Welsh.
    See the answer.
  • My horse was diagnosed with AHS on 12 January 2008 (in spite of being vaccinated in August 2007) Fortunately he survived and is back to being his own self again. When would be the best time to vaccinate him again ?
    Answered: 12/2/2008, 16:06 by Douglas Welsh.
    See the answer.
  • Saying that there is rarely more than 2 strains of AHS in an area. Can the strains move to different areas and new ones to our area? Therefore can't there be an area based vaccination that fight the most commen strains in that area?
    Answered: 12/2/2008, 10:10 by Douglas Welsh.
    See the answer.
  • If read that AHS incubates for 1-2 weeks. If one didn't pick up any simptoms in that incubation stage and you vacinate the horse what can happen?
    Answered: 12/2/2008, 10:08 by Douglas Welsh.
    See the answer.
  • If my horse was vaccinated with AHS I on 16 May 2007 and AHS II on 6 June 2007, what date am I expected to re-vaccinate with AHS I again in 2008? Is it 12 months from AHS I or 12 months from AHS II?
    Answered: 11/2/2008, 16:53 by Douglas Welsh.
    See the answer.
  • I have an imported horse which arrived in June 2007. She was innoculated on arrival in June and again in Decemebr with both AHS I & II. I have been told that a horse will only be safely immune once it has had 6 injections (i.e. 3x AHS I and 3x AHS II). How long must I wait until she can have another set of innoculations? I have been told a minimum of 5 months wait is optimal?
    Answered: 26/1/2008, 15:59 by James Urry.
    See the answer.
  • When is the best time to vaccinate a new born foal? I read that the anti-bodies the foal receives from the mare, will only last 3 weeks and that the foal only starts building its own antibodies by the age of 3 months?
    Answered: 20/1/2008, 21:51 by Douglas Welsh, James Urry.
    See the answer.
  • I have stayed on 3 different properties in the last 5 years and make notes of all injections, injuries etc. I might be wrong but in the last 5 years every time I vaccinate my horses I get a AHS outbreak - Most of the time at about 10 to 14 days after the first injection. This is very strange to me that it happens like clockwork. I take precautions and do not allow any new horses on my property during peak times. Besides that I also take other precautions but it is very alarming to me that my outbreaks come every time after I vaccinate. I also know of 2 other stud farms that noticed the same pattern! - Do you have any suggestions?
    Answered: 20/1/2008, 21:46 by James Urry.
    See the answer.
  • What kind of excersices can I give my horse while in his vacitation period? How hard can they work?
    Answered: 5/1/2008, 16:08 by Douglas Welsh, James Urry.
    See the answer.
  • Can the two AHS vaccines be given back to back, and/or can the horse be given a double dose once? (I heard of someone who did that, with no negative consequences)?
    Answered: 2/1/2008, 20:13 by James Urry.
    See the answer.
  • What is the definitive recommendation around exercing your horse whilst being innoculated with Horse Sickness Vaccine? Some say a) rest the horse for 3 weeks, others say b) rest only during the second week, my instructor says, c) he works his horses every day (during this period), others say d) work, as long as the horse does not sweat?
    Answered: 2/1/2008, 20:11 by Douglas Welsh, James Urry.
    See the answer.
  • Can vaccination for Strangles and Horse Sickness be given together? (and can a horse exercise/compete after having been given a Strangles vaccination)?
    Answered: 2/1/2008, 20:06 by Douglas Welsh, James Urry.
    See the answer.
  • Why must a horse be vaccinated for AHS by a vet, and not by the owner, for example (particularly for Endurance riding)?
    Answered: 30/12/2007, 09:28 by Douglas Welsh, James Urry.
    See the answer.
  • Some of our horses which have been given their AHS vaccines appear to have slightly swollen eyes but their temperatures (taken twice a day) are completely normal. Should we consider this to be a vaccine reaction? They are showing no discomfort or other symptoms?
    Answered: 22/12/2007, 09:28 by James Urry.
    See the answer.
  • Our vet has reccomended us to vaccinate our foals at three months of age. Is this correct for foals of this age, and is it safe?
    Answered: 29/11/2007, 16:11 by Douglas Welsh, James Urry.
    See the answer.
  • Is vaccination now compulsory in the Western Cape?
    Answered: 27/11/2007, 20:39 by James Urry.
    See the answer.
  • My stable manager does not want the horses in her yard to be vaccinated because she says that the vaccine is a live virus, that has been cultivated from animal livers. She says that if you inject your horse with a live virus you could make the horse sick and possibly expose the horse to any diseases that the animal might have had from which the vaccine was originally cultivated. Is this true?
    Answered: 25/11/2007, 21:23 by James Urry.
    See the answer.
  • My 2 horses are kept in a stable yard of 20 horses, the owner of the yard prefers to treat the horse sickenss with alternative methods (herbs, ect). I would like to vaccinate my horses but she says if i do i will put her horses at risk, because my horses will become carriers and spred the disease. Is this true?
    Answered: 25/11/2007, 21:20 by Douglas Welsh, James Urry.
    See the answer.
  • Do minature horses get the same dose of vaccine as 'normal' horses?
    Answered: 25/11/2007, 21:15 by James Urry.
    See the answer.
  • When is the most ideal time to vaccinate?
    Answered: 24/11/2007, 16:08 by Douglas Welsh, James Urry.
    See the answer.
  • For how long should a horse not be ridden after it has been vaccinated for African Horse Sickness?
    Answered: 15/11/2007, 17:22 by James Urry.
    See the answer.
  • About exercising during the vacination period - is it correct that as long as the horse doesn't break out into sweat, it can be exercised?
    Answered: 12/11/2007, 14:47 by Douglas Welsh.
    See the answer.
  • Should horses which are not physically in a good condition be vaccinated? For example, we have a mare in terrible condition with two week foal at foot. Do we need to wait for the mare to pick up condition before we vaccinate her?
    Answered: 12/11/2007, 14:35 by Douglas Welsh.
    See the answer.

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