Worms & Germs Blog

Tag Archives: outbreaks – equine

Equine infectious anemia in Canada

Posted in Horses
A recent cluster of equine infectious anemia (EIA), an insect-borne viral disease of horses, shows the personal side of EIA control. EIA is a serious disease of horses that can cause disease ranging from mild to fatal. Some horses recover uneventfully but are then potential sources of the virus, and disease can build up slowly… Continue Reading

Communication done right: EVH-1 in Minnesota

Posted in Horses
Two cases of EHV-1 have been detected on a farm in Prior Lake, Minnesota.  There aren’t a lot of details about the cases, other than one horse was put down, and the other was taken to the University of Minnesota veterinary hospital for treatment and has apparently recovered and is ready to come home. The… Continue Reading

Vesicular stomatitis in Texan horses

Posted in Horses
Hint… if you like time off during the summer, don’t get into equine infectious diseases. Vesicular stomatitis (VS) has been identified in five (so far – probably more to come) horses in Kinney County, Texas. The case is shown on the Worms & Germs Map, and more details are available in the news release from… Continue Reading

EHV-1 in the news

Posted in Horses
There have been a few reports of equine herpesvirus (EHV-1) neurological disease over the last couple of weeks and some other cases that have been less well publicized. Hopefully it’s all just been a blip on the radar and not a sign of things to come as equine events start to ramp up at this… Continue Reading

Strangles and liability

Posted in Horses
Surprisingly (at least to me), I don’t hear much about individuals suing other people because of infectious diseases in their horses (apart from sporadic situations involving veterinary hospitals). I’m not saying the increasingly litigious nature of society is a good thing, but I can see how lawsuits could happen given the costs associated with infectious diseases, the… Continue Reading

EHV-1 on Oregon farm

Posted in Horses
An outbreak of equine herpesvirus type 1 (EHV-1) neurological disease has occurred on an Oregon farm. At last report, five horses had tested positive for the virus (though it’s not clear if all of them had neurological disease) and one had died. EHV-1 outbreaks are not exactly rare these days. There’s certainly more reporting of… Continue Reading

Strangles in the news

Posted in Horses
There’s been a lot of press about strangles (Streptococcus equi) outbreaks in Ontario lately, including a biosecurity update from the Ontario Ministry of Agriculture and Food (OMAF). In some ways, it’s surprising since this is an endemic disease and strangles is pretty much always causing trouble somewhere in the province. However, a little press is… Continue Reading

Equine neuro herpesvirus outbreak, New Zealand

Posted in Horses
An outbreak of equine herpesvirus type 1 (EHV-1) neurological disease (also known as equine herpes myeloencephalopathy (EHM)) is underway in a currently undisclosed location in New Zealand. It appears that at least 12 horses have been affected with 6 deaths, all on one farm. This is being described as the first outbreak of the neurological… Continue Reading

More Ontario equine herpesvirus

Posted in Horses
An outbreak of equine herpesvirus type 1 (EHV-1) has resulted in implementation of a quarantine at Woodbine, a major Thoroughbred track in Toronto. This outbreak is unrelated to the recent outbreak at an Ontario Standardbred training facility. The Ontario Racing Commission has issued the following release: The Ontario Racing Commission (ORC) announced that there have… Continue Reading

Protocols for contagious diseases at horse shows

Posted in Horses
Horse show season is upon us, and with it comes the questions from concerned horse owners who want to protect their animals from the infectious diseases they may encounter at these events.  In this case, the specific question is: What protocol would go into place if a horse with a highly contagious disease such as… Continue Reading

Equine herpesvirus in Michigan

Posted in Horses
Yes, the title’s a bit misleading. Equine herpesvirus (EHV) is everywhere, since the virus circulates widely in the horse population internationally and lies dormant in the bodies of a large percentage of healthy horses. However, cases of EHV-1 neurological disease get attention because of the severity of disease and the potential for outbreaks (for reasons… Continue Reading

More equine herpesvirus, this time in Minnesota

Posted in Horses
I haven’t written much about equine herpesvirus type 1 (EHV-1) outbreaks lately because I have a hard time getting excited about them (from a blog writing standpoint… if one occurs here, that will be a different story). Outbreaks of neurological disease caused by this very common equine virus (one that doesn’t spread to people or… Continue Reading

Equine coronarvirus…a new problem?

Posted in Horses
Two presentations at the International Conference on Equine Infectious Diseases yesterday discussed equine coronavirus and whether it might be a new or previously unrecognized cause of disease in adult horses. This follows a presentation the day before that mentioned coronavirus diarrhea in racing draft horses in Japan – a rather unique group, pictured at right.… Continue Reading

Ontario restrictions on Illinois race horses

Posted in Horses
In response to an equine herpesvirus type I (EHV-1) outbreak at Hawthorne Racecourse in Illinois, the Ontario Racing Commission (ORC) announced movement restrictions on horses from Hawthorne, and Illinois in general. Effective immediately: Any horse that has been on the grounds at Hawthorne since Oct 4 is not allowed on any Ontario racetrack until 30… Continue Reading

Banner year for West Nile virus

Posted in Cats
After being a relatively rare problem in most regions over the past few years, West Nile virus (WNV) case numbers have boomed lately, with large outbreaks in some US states. Canada Forty-nine (49) confirmed or probable human cases have been reported in Ontario, the largest number in a decade. Considering we’re just heading into the… Continue Reading

Transfusion-associated equine infectious anemia

Posted in Horses
A few years ago, I looked out my kitchen window one holiday morning and saw a newborn foal running outside of a fence line. The foal had been born to my neighbours’ mare, a maiden mare, and they were out of town. The mare had rejected the foal and wasn’t interested in any of my… Continue Reading

Equine Infectious Anemia: Outbreak Out West

Posted in equIDblog
This week an article on TheHorse.com discussed the current situation in the western provinces of Canada with regard to equine infectious anemia (EIA).  The prairies are seeing the highest number of EIA cases in years, with more than 70 horses affected on 22 different properties. Also commonly called "swamp fever," EIA is caused by a… Continue Reading

Botulism outbreak kills 23 horses

Posted in Horses
Botulism has been in the news lately, with numerous outbreaks involving different species and some human food recalls. Botulism outbreaks are often pretty dramatic because of the number of individuals that can be involved, the severity of disease and the fact that it’s often difficult to do much beyond damage control once the problem is… Continue Reading

Strangles outbreak at Saratoga

Posted in Horses
An outbreak of strangles (Streptococcus equi infection) has led to cancellation of the racing program at Saratoga Raceway in New York State. In a ripple effect, other racetracks in the region have taken measures to protect their horses, including banning horses from Saratoga, banning horses from surrounding tracks, not allowing horses that leave the grounds… Continue Reading

Botulism outbreak in horses

Posted in Horses
Botulism outbreaks in horses are usually bad news. Horses are very susceptible to botulism, and outbreaks in horses caused by contamination of food often end up killing multiple horses on a farm. The recent botulism outbreak in Reddington, IN is another reminder of how deadly it can be. The outbreak involved a family that lost… Continue Reading

Bat slaughter = Hendra virus control?

Posted in equIDblog
Bob Katter, an Australian Member of Parliament and leader of the Australian Party, has proposed culling flying foxes (fruit bats) as a way to control Hendra virus, which is spread by these large Australian bats. He’s not the first person to make such a proposal, but it’s a knee-jerk reaction that in reality doesn’t make… Continue Reading

No Answer In Aussie Horse Deaths

Posted in equIDblog
Despite relatively intensive efforts, no cause has been identified for the deaths of 22 horses ona Kooralbyn farm in Queensland, Australia. Readily identifiable causes have been ruled out, leaving two main theories: As mentioned in an earlier post, one possibility is botulism It can be very hard to diagnose botulism in horses, and the disease… Continue Reading