Worms & Germs Blog

Archives: Horses

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CANresist

Posted in Birds, Cats, Dogs, Horses, Other animals
Introducing CANresist, a new initiative aimed at fostering antibiotic stewardship in Canada across the human and animal health fields and beyond, in order to maintain the effectiveness of these life-saving drugs. Follow us at CANresist.com or CANresist.blog, or on Facebook. Also check out our Twitter feed @CANADAresist, including our #mylastantibiotic tag to talk about the last time… Continue Reading

West Nile Virus in Ontario Horses

Posted in Horses
Two Ontario horses have recently been diagnosed with West Nile virus infection, prompting the equine health advisory below from the Ontario Ministry of Agriculture Food and Rural Affairs. That’s not too surprising, as now is the typical time of year that we start seeing this mosquito-borne infection in Ontario. West Nile numbers in both humans and… Continue Reading

Psittacosis From A Horse

Posted in Horses, Other diseases
I’ve had this paper from One Health (Chan et al 2017) on my “to blog” pile for a while, since it’s an interesting story. Like any case report, it’s a bit of an oddball infection, and not likely indicative of a major or new risk. However, there are often a few good general take-home messages from… Continue Reading

Close Encounters of the ‘Tick’ Kind…Your Pet, Pathogens & Lyme Disease

Posted in Dogs, Horses, Other diseases, Parasites
Guest Blog by Dr. Michelle Evason DVM DipACVIM, and current PhD student researching Lyme disease in dogs Recently, an interesting article on pet ownership and human tick risk was published (Jones et al, Zoonoses and Public Health 2017). The study looked at risk factors for “tick encounters” in people living in Lyme disease endemic states in the… Continue Reading

Rabid Horse: Minnesota

Posted in Horses, Rabies, Vaccination
If a horse comes into the hospital at this time of year and has some difficulty standing, incoordination and mild fever, the first thing on my list of likely causes is probably equine herpesvirus type I (EHV-1) infection. Next would be West Nile virus encephalitis. However, we consider all sudden onset neurological disease cases in… Continue Reading

Lyme disease: The Difference Between Knowing and Actually Doing…

Posted in Dogs, Horses
Guest blog by Dr. Michelle Evason, DVM DipACVIM (as well as current PhD student and coordinator of our Lifetime Lyme Study) In 2014, the Public Health Agency of Canada (PHAC) initiated a 3-year marketing campaign (news, advertisements, social media, collaboration with Parks Canada to post signage, etc.) to try to raise the general public’s awareness and… Continue Reading

New Ontario Lyme Disease Risk Map

Posted in Cats, Dogs, Horses
To continue the map-posting binge that I’ve been on lately, Public Health Ontario has just posted their updated Lyme Disease Risk Areas map for 2017.  For comparison, you can still also access the 2016 map too, and you can see that the risk areas have indeed expanded somewhat, particularly in Eastern Ontario. The estimated risk… Continue Reading

Tick Tracker Update

Posted in Cats, Dogs, Horses
Our online Pet Tick Tracker continues to receive lots of submissions, so here are some interesting maps showing some of the preliminary information compiled so far.  The maps show where the ticks are being reported, but remember that they’re not necessarily reflective of the true overall picture, since it depends on who is reporting and who isn’t reporting.… Continue Reading

PetTickTracker Update

Posted in Cats, Dogs, Horses
Over the years, we’ve tried a variety of new approaches to promote awareness (among the public, veterinarians and others) and to collect relevant research information. Some (like this blog) have taken on a life of their own and exceeded our expectations. Some didn’t go very far. Our most recent initiative is the PetTickTracker, a website designed… Continue Reading

Pet Tick Tracker

Posted in Cats, Dogs, Horses
It’s pretty clear that tick ranges are changing. In Ontario, we’ve seen movement of ticks into areas where they were never seen before, as well as potential changes in the types of ticks that are found in different areas. The potential for tickborne diseases like Lyme disease highlights the importance of understanding tick distributions. Knowing where… Continue Reading

Flesh Eating Disease with a Pony Link

Posted in Horses
The bacterium Streptococcus equi subsp. zooepidemicus (often simply called Streptococcus zooepidemicus) is one that I think I understand less and less, including the risks this predominantly equine-associated bug poses to humans. It’s a well-known and common bacterium in horses, both healthy and sick, and can also be found in dogs and cats (where it can… Continue Reading

2016 Rabies Compendium

Posted in Cats, Dogs, Horses, Other animals, Rabies, Vaccination
The 2016 Compendium of Animal Rabies Prevention and Control has been released by the US’s National Association of State Public Health Veterinarians (NASPHV). This version has updates in a few different areas, such as some changes to recommendations for dogs, cats and ferrets that have potentially been exposed to rabies. It can be downloaded directly here or be found… Continue Reading

Updated Equine West Nile Virus and EEE Maps

Posted in Horses
The title says it all. Here are the most recent maps from WormsAndGermsMap showing equine cases of West Nile virus and Eastern Equine Encephalitis (EEE) virus infection. As with any surveillance, the maps only capture a percentage of the true number of cases, but looking at the geographic distribution and trends in date-of-onset can still be informative. West… Continue Reading

Equine Arbovirus Update

Posted in Horses, Other diseases
Arboviruses (ARthropod-BOrne viruses) are viruses that are spread by insects, often mosquitoes. As I’ve written about recently, mosquito biology and differences in reservoir species mean that mosquito-borne viruses can have quite different patterns of distribution and spread. As is common, the occurrence of West Nile virus infection in horses tends to ramp up in late… Continue Reading

Fatal Horse-Associated Streptococcus zooepidemicus Infection

Posted in Horses
A recent report in MMWR describes a pair of Streptococcus equi subsp. zooepidemicus infections in people.  The cases are noteworthy because this bacterium doesn’t often cause human infections, and because one of the infected people died. More commonly referred to simply as Strep zoo, this bacterium is very commonly found in perfectly healthy horses, although… Continue Reading

Eastern Equine Encephalitis Season in Full Swing

Posted in Horses, Other diseases, Vaccination
‘Tis the season for mosquitoes, so ‘tis the season for some nasty vector-borne diseases. Few are worse that Eastern Equine Encephalitis (EEE), a viral infection that causes typically fatal disease in horses, and less commonly other species, including people. Cases tend to start mid-summer and peak late summer to fall, depending on the mosquito dynamics… Continue Reading

Clean Hands Save Lives: Horsey-Style

Posted in Horses
Infection control isn’t rocket science. Wash your hands, don’t eat that, keep your finger out of your nose… things you learned in kindergarten go a long way to preventing infections. The basic nature of the core infection control concepts is also a barrier – hand washing isn’t fancy, new or associated with some fancy machine. (There… Continue Reading

Worms and Germs Map Update

Posted in Cats, Dogs, Horses, Parasites, Rabies
A few years ago, we launched WormsAndGermsMap to help track certain emerging and endemic diseases. Data are entered by participating veterinary clinics, surveillance programs and the WormsAndGerms team. While we certainly can’t capture every case, we do collect some interesting information about the presence of certain diseases. Using the “Report Filter” bar on the left, you can… Continue Reading

Mapping Zoonotic Disease Emergence Risk

Posted in Birds, Cats, Dogs, Horses, Other animals, Other diseases, Pocket pets, Reptiles
Predicting the future is a dodgy proposition at the best of times. It’s particularly hard with infectious diseases, which tend not to behave as expected. Yet, it’s important to plan surveillance, education and response. One approach is to assess where certain types of problems are more likely to develop. That can help direct resources (time,… Continue Reading

Equine Biosecurity Standards

Posted in Horses
The Canadian Food Inspection Agency (which, despite the name, deals with broader animal issues as well, not just those related to food), in conjunction with a variety of partners, has developed a National Farm and Facility Level Biosecurity Standard for the Equine Sector. It’s a comprehensive overview of best practices for infectious disease control in the… Continue Reading

10 More Rabid Raccoons in Hamilton

Posted in Cats, Dogs, Horses, Rabies
It seems to be a bit of a slow month for zoonoses.  Finally getting some cold weather here in Ontario certainly helps keep many bugs at bay (and people indoors).  Nonetheless, rabies continues to keep us hopping.  The Ministry of Natural Resources and Forestry (MNRF) is continuing with its surveillance efforts around the cluster of… Continue Reading

Rabies in a horse

Posted in Horses, Rabies, Vaccination
A horse in South Carolina was recently diagnosed with rabies. While rabies is common in some animal species in some regions, it’s a pretty rare disease in horses, so it’s a noteworthy event. This case has a couple of important takeaway messages. Rabies can be sneaky. Rabies (especially in horses and cattle) isn’t always obvious… Continue Reading