Hunting Dog Killer…Beware! Blastomycosis

  • jwfilm1
    Aitkin, MN
    Posts: 160
    #1248295

    My 11 month old Lab started losing weight, limping, getting sores last monday. Then on Tuesday a couple of her feet swelled up to the size of a tennis balls and her front knees swelled up. We thought it was Lyme’s…NOT! It was blastomycosis and it is a fast killer. It’s found in river regions, namely the Missisipi north and south of Brainerd and the Ripple river near Aitkin. I would bet it’s found in other regions as well. It only took a couple days for my dog to go from 60lbs to 45lbs and within a few hours of her life. We have a camp up on the Mississipi near Deer River and did some dirt work during late duck season. Blastomycosis is a soil borne fungus that is inhaled by the dog (and humans if you’re not careful). Starts in the lungs, goes to the lymphs and eventually the brain. Takes about 30-45 days after the incident for the symptoms to show up. Goes fast after that. Looking back, when my dog started caughing or “gagging” a couple weeks ago we should have acted immediately. But then it went away. Deb at the Garrison Animal hospital saved my dog’s life. We pick her up tomorrow (she’s been in intesive care for a week). Will cost a minimum of $2K to treat. $1K for the meds, $1K for the vet bill. BE CAREFUL AROUND EXPOSED SOIL OR LOON @$%# ON THE RIVER BANKS!!!!!!!!!!!!!!!! Hope this saves somebody’s pet or hunting partner.

    jwfilm1
    Aitkin, MN
    Posts: 160
    #404967

    I forgot to include that she got VERY stiff and sore and could not move…just layed on her bed for hours at a time. That’s why we thought it was a tick-related illness.

    Brian Klawitter
    Keymaster
    Minnesota/Wisconsin Mississippi River
    Posts: 59992
    #404988

    Thanks for sharing! I’m glad your buddy’s going to be ok for the holidays!

    littlebuddy
    Iowa City
    Posts: 56
    #404991

    Wow! that is tough.
    I hope your pup makes a full recovery.
    Thanks for the info!

    blufloyd
    Posts: 698
    #405003

    Isn’t there a shot as in puppy vaccinations or yearly shots?

    Art
    Posts: 439
    #405006

    Like to hear from somebody that knows for sure. I am a lab lover, always lived in the country, had a few good dogs die early. They have been with me when I tilled. Would like to find a place where I could find more info on this. Thanks.

    blufloyd
    Posts: 698
    #405031

    google sez yes and I think its what my dog gets yearly in the distemper mix…

    robstenger
    Northern Twin Cities, MN
    Posts: 11374
    #405101

    Thanks for the heads up and I’m glad your buddy is recovering! Keep us posted how it goes!

    suzuki
    Woodbury, Mn
    Posts: 18715
    #405109

    I was told this orginated on the Namekagan River in Wi. I have a place on that water and the dog swims freely. The vet in Trego gave me some paperwork on the subject. If you get them in right away treatment is fairly succsessful. They said there is no vaccination. Just one more thing I have to watch for and worry about.

    jwfilm1
    Aitkin, MN
    Posts: 160
    #405227

    I think Suzuki is right, our vet said no vaccination is currently available. So far we are up to $940 in medication and who knows how much for the 7 days in intesive care at the vet. I’m guessing another grand or so. Still worth it…my 3 little kids were just crushed to hear that their dog was probably going to die. Hopefully it all works out. Question is: do I quit taking her up to the camp on the river? That was the whole point of having a camp and that was the whole point of having a good dog. Sucks.

    suzuki
    Woodbury, Mn
    Posts: 18715
    #405237

    I hear you. I found out about it this summer. Kinda hard to keep my dog out of the water and frankly I don’t want to. Vet said only one confirmed case on the Namekagan as of when I spoke to her in Aug. Pretty high odds and I’m just going to take them. At least I know to take her in immediately if she starts acting strange. I wish I could attach the information I have but its all up at the cabin. I’ll try to bring it back this winter.

    jwfilm1
    Aitkin, MN
    Posts: 160
    #405314

    yet another case I found out about down in Dayton, MN. I suspect by the river. The couple are treating the dog as we speak. Not sure if it will live or not at this point. I am going to keep updating this post with cases that I hear about FIRST HAND. If you can do the same it would be great. Once again this is a doozey. Maybe if the word spreads we can save some of our hunting partners.

    jwfilm1
    Aitkin, MN
    Posts: 160
    #406219

    a customer of mine has a black lab up in Bemidji. Out of the 9 pups in her litter, 8 of them died before they were a year old…all of them (except one) went to homes near or on the Mississippi river up by Deer River or Grand Rapids. Also, another customer’s Dad got Blasto and he never did really recover. They lived in the same area. His son said he thinks that is ultimately what killed his Dad. My dog is at home now and is about 80%. Still riddled with open sores and very weak. Major damage to her lungs. Hopefully she will overcome that. Will keep you posted as I hear more cases FIRSTHAND.

    ted-merdan
    Posts: 1036
    #406226

    Is this around the Mississippi River in general?

    I am moving into a new (to me) place on the river in Champlin next week and want to educate myself on what to watch for. I have two younger yellows (1.5 and 1 year old) that I would like to enjoy for years to come…

    good luck with the recovery of your little buddy!

    jwfilm1
    Aitkin, MN
    Posts: 160
    #406231

    If it was me, I would get aquainted with a vet down there and ask about Blasto. If they have never heard of it, you should be OK. Make sure it’s a reputable vet and not somebody operating out of a van or something. Good luck. I WILL keep everybody posted with locations that I hear about. Champlin is close to Dayton! Spring is a hot time for it to occur. Everything is in full bloom. Watch for caughing or gagging, swollen joints, lameness, open sores and labored breathing. Don’t take chances if you notice anything. You have about a week once you detect the first symptom.

    jwfilm1
    Aitkin, MN
    Posts: 160
    #406235

    also, our dog had a 105 degree fever. That is one of the first signs. We have a female, but in males a common first symptom is swollen testicles. It’s more common in males I guess.

    tedpeck
    Genoa Wi
    Posts: 267
    #406278

    I lost a black Lab, Spooky, to it about 10 yrs ago. Think he got it from beaver poop. First symptom was coming up lame on front leg, then a discharge from the eye. he was about 15 months and really coming on. Was getting ready to take him to Saskatchwan for ducks when he got sick. Ended up not going. didn’t get another dog for three years. Blasto is a major heartbreaker.

    jwfilm1
    Aitkin, MN
    Posts: 160
    #406479

    yup, beaver houses are a hot spot from what I’ve heard. Not so much the beaver poop, but the mud they pack around the house. Not sure, but that’s what I’ve heard. Went up to Bader’s game farm today up by Boy River and Deb said her brother got Blasto from doing excavation work…not good. Also, she has lost dogs from a beaver pond close by. BE CAREFUL around fresh piles of black dirt and river banks. We did some trenching up at our camp on the Mississipi this fall and I think my dog got it from pawing around in the churned up soil. Not sure, but I’m going to take soil samples from the river, our yard, in the woods etc and send them to the U of M for testing. We’ll get to the bottom of this thing yet. What I can’t get over is how common Blasto is yet nobody has ever heard of it. I’m on a mission to inform as many people as I can of this SOB of a disease.

    jwellsy
    Posts: 1593
    #406494

    Here’s a cut/paste from Dog Owners Guide

    Introduction

    Blastomycosis is an infection found in dogs, people, and occasionally cats. It is caused by the fungal organism Blastomyces dermatitidis, which is found as a mold in the soil or at room temperatures and as a yeast in tissues or at body temperatures. The mold occurs in sandy, acid soils near river valleys or other waterways. Endemic in Ohio, Mississippi, and St. Lawrence river valleys, the Great lakes region, and along the eastern seaboard, veterinarians report blastomycosis more frequently in the fall.

    While any dog may contract blastomycosis under the right circumstances, certain populations are at greater risk. These include the hunting and sporting breeds since their use involves exposure to soil in wet areas, and young adult dogs, which are more likely to be used in hunting or field trials than old dogs or pups. For unknown reasons, male dogs are more likely to contract blastomycosis than females. One study found that, while female dogs may have better survival rates with therapy, they are more likely to suffer relapses than males.

    So, while all dogs are susceptible to blastomycosis, those at greatest risk for infection are two-to-four year old intact males of hunting or sporting breeds that weigh 50-75 pounds and are exposed to river valleys or lakes during late summer or fall.
    The disease process

    Dogs usually acquire blastomycosis by inhaling the spores from the soil into the lungs, where it induces a self-limiting pulmonary infection. Direct inoculation of the spores into the skin through puncture wounds may cause local cutaneous infection. By far, the most common form of blastomycosis seen by veterinarians is the generalized or disseminated form, which spreads via the bloodstream or lymphatic system from the lungs to involve the eyes, brain, bone, lymph nodes, urogenital system, skin, and subcutaneous tissues.

    The clinical signs of blastomycosis may vary with the target organs affected and may include one or all of the following: anorexia, depression, weight loss, fever (103 degrees or higher) that doesn’t respond to antibiotics, coughing, shortness of breath, exercise intolerance, enlarged lymph nodes, eye disease, or skin lesions that drain bloody or purulent material.
    Diagnosis

    Diagnosis of blastomycosis involves finding the yeast organism in samples from draining skin lesions or a lymph node. Chest x-rays and a complete blood count (CBC) are important tests but are not diagnostic by themselves. Serum chemistries are usually within normal limits. Fungal titers confirm the diagnosis and help differentiate blastomycosis from histoplasmosis, a related fungal condition with similar signs and geographic distribution.

    About 65 percent of dogs diagnosed with blastomycosis do survive. Because the treatment is long, complicated, and expensive with the potential for serious side effects, some owners elect to euthanize affected pets. In treated dogs, survival rates are approximately 85 percent, with up to 25 percent suffering relapses. Dogs with brain or eye involvement have a worse prognosis, and dogs with poor liver or kidney function may not be able to tolerate the necessary medications that must be metabolized by these organs. If an eye is involved, it usually must be removed since eyes don’t respond well to therapy and serve as a source of infection.
    Treatment

    For many years, the standard therapy for blastomycosis has been amphotericin B. It is still the best choice for acute, life-threatening illness, and treated dogs show improvement in three to five days. Amphotericin must be given as an intravenous injection, either as a slow IV drip over several hours or as rapid IV bolus injections, one to three times weekly until a maximum cumulative dose is reached. Rapid injections increase the potential for acute drug reactions, and the drug has a toxic effect on kidney function, which requires close monitoring. The veterinarian may temporarily delay therapy while the kidneys recover from the injury.

    Ketoconazole given orally twice a day has been effective against blastomycosis. Although it may take 10-14 days to see clinical improvement with this drug, it may be useful in a dog with poor kidney function and a mild form of the disease. Given alone, ketoconazole has a lower cure rate than amphotericin, but when given together, the two drugs work synergistically, allowing veterinarians to use lower doses of amphotericin and minimize the risk of kidney failure as well as promoting a more rapid and complete cure. The side effects of ketoconazole are related to liver toxicity and include anorexia, nausea, and vomiting. It can be harmful to pregnant dogs and may also affect the fertility of male dogs.

    Itraconazole is the newest drug used to treat blastomycosis. It is given orally twice a day at first, then once daily for 60-90 days. Like amphotericin, it takes effect quickly, and has the same cure rate as the amphotericin-ketoconazole combination. The side effects are related to liver toxicity, like ketoconazole, with the addition of ulcerative skin lesions and swelling of the legs at the higher dose.

    The biggest drawback to itraconazole is the cost, about $10 per day for a 40-pound dog for the medication alone, about twice the cost of ketoconazole. Because these drugs are dosed on body weight, larger dogs will have comparably larger drug costs. Blood tests and other veterinary services must also be considered in the cost of treatment. Total fees of $1000 or more would not be unusual.

    Blastomycosis is not generally considered a zoonotic disease, meaning one that is potentially contagious to people. If you have a pet with this infection, it indicates that you may be at risk for contracting the disease through a common environmental source such as contaminated soil near a waterway. Since it is the mold form that releases infective spores through the air, you cannot get blastomycosis from the air around your dog who is infected with the yeast form of the fungus.

    Recent studies indicate some risk of exposure through penetrating wounds with sharp contaminated objects such as a sharp stick or a dog bite, so good safety and hygiene precautions are indicated. Needless to say, persons with deficient immune systems should not be handling infected dogs.
    –By Kathleen R. Hutton DVM–

    jwfilm1
    Aitkin, MN
    Posts: 160
    #406557

    that’s a good article. Thanks.

    jwfilm1
    Aitkin, MN
    Posts: 160
    #408489

    yet another case…our Conservation Officer in Aitkin lives by the Ripple River and lost a lab to Blasto. He mentioned that he dug a duck pond around the time of the dogs symptoms. He wasn’t sure; I’m guessing that had something to do with it. Our dog is NOT doing well. I’m guessing 50/50 at this point.
    Miserable disease. Be careful moving dirt this spring!

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