Subscribe to
Fully Vetted
Dr. Coates is a veterinarian based in the other “Sunshine State” – that's Colorado to the rest of you – where she lives and plays with a varied range of animals. She shares her professional and personal experiences, Monday through Friday, here on petMD's blog, the Fully Vetted. Log in for your daily dose of her insight and wisdom.

 

Are dead iguanas paralyzing Miami's dogs?

January 31, 2010 / (9) comments


For the past week I’ve been aware of a scary condition affecting at least a score of dogs in South Florida. It’s a hindlimb weakness that leads––within hours to days––to paralysis.

 

It seems to work much like botulism poisoning would so that dogs eventually succumb to the effects of the disease once they can no longer power the muscles they need to breathe with. Essentially, they suffocate. 

 

Intensive care on a ventilator helps these unlucky dogs power through their days-long paralysis, but that’s been a $15,000 proposition for at least one owner involved. Needless to say, it’s not an option for most of us.

 

Moreover, the ravages of the disease and the expense of its treatment are heavily compounded by the frustration that attends these cases. Because we have no idea what’s causing them. Because we have to look these owners in the eye and tell them we have no idea why their pets are so sick.

 

Then comes Friday’s news segment. The most salacious station on the air in our parts had this to say:

Veterinarians at an animal clinic in Cooper City have noticed about 13 cases so far, including one death. One thing in common, vets said, is that all the dogs ingested dead iguanas, which, vets said, can become poisonous as their bodies decay.

As some of you may already know from this past post (in which I set up a makeshift hospital for the dying iggies in my vicinity), iguanas expired in the thousands after our in-the-twenties cold snap. So it stands to reason their poisonous entrails might result in sickness.

 

Problem is, the news media has a way of getting things not-so-right. And––to my way of seeing things, anyway––some veterinarians are too willing to jump the gun on reporting events to the public before the ducks have been lined up and counted. After all, the investigation is too fresh, not all owners have been appropriately interviewed and at least two of the affected animals had no known exposure to iguanas.

 

I mean, one is a fru-fru indoor poodle-y thingie. Though, admittedly, she could have scarfed down something small on her morning walk, this isn’t the kind of dog that tears into a dead iguana like some dogs do. In fact, all affected dogs seem to share a distinctly suburban provenance.

 

Then there’s this to consider: My mother’s dogs dragged dead iguanas around for a week after the cold snap killed them (we couldn’t get them away and the yard is soooo big and wooded there was no easy solution except to assume they’d continue to devour dead iguanas for a while). Why, then, are not the most obvious outdoor property dogs (like my mom’s) coming down with this dreaded “dead iguana disease”?

 

It just doesn’t make sense to me, this iguana theory. While I’m willing to believe that dead lizards’ bacteria can run to C. botulinum (and produce botulism toxin) under certain conditions, why then is this the first year we’ve noticed such a rash of illness?

 

It all makes me uneasy, especially when my phones start ringing off the hook before I’ve had my morning coffee. Fielding questions about dead iguanas and what people should do if their dogs got into them? It’s not my cuppa on a Saturday morning when some kind of a warning might’ve been nice. We Florida veterinarians do have an email list-serve, after all.

 

Which is why I plan on asking for two things next time: (1) Specialty hospitals reporting major local events should perhaps send local veterinarians an alert before passing around press releases to the local media, and (2) do the math before spilling the beans.

 

Sure, there’s nothing wrong about telling pet owners there might be a plague upon us. But please...don’t just take a wild guess as to its origins unless you’ve got something solid. (After all, it's already pretty obvious that you shouldn't let your dogs eat long-dead things so it's no harm no foul not to belabor this point.)

 

So what should you do now if you live in South Florida? Keep your pets on a short leash and beware potential toxins. I'd eschew the lawn spray and cook for my pets, too, just in case. But hey––I've been known to go overboard on a regular basis...not just when there's a probable poison a-prowling.

 

Subscribe to Fully Vetted
COMMENTS (9)
1
by on 02/01/2010 04:50pm

An emerging disease linked to global cooling, Temperature-Induced Transmissible Paralysis?
......................................
http://www.winnipegfreepress.com/opinion/columnists/how-cold-is-it-iguanas-dropping-from-the-trees-81449702.html
"Well, on Jan. 7, the Tallahassee Democrat reported: "Across the Sunshine State, oranges and strawberries are freezing, icicles are hanging off palm fronds, and iguanas paralyzed by the cold are falling out of trees.""

2
by on 02/01/2010 11:01am

Pat: I'd agree...but we should all beware the boy who cried wolf factor. And when speculation is couched as fact as it was in this case...I get my hackles up.

3
by on 02/01/2010 06:49am

I don't see anything wrong with the press stating the possibility of iguanas being the cause. We need the warnings. Why wait for the facts which may never come. We need to be aware of possibilitiesto look out for in order to protect ourselves and our pets from all kinds of things. Foods we ingest to products we use. If we wait for scientific evidence every time we would have more tragedies. Warnings give us the chance to exercise caution until facts surface.

4
by on 01/31/2010 08:07pm

<<Bacteria gains legitimacy especially if it is purchased for $30/mo. in a capsule and called a probiotic. It would be too simple to get good bacteria in real unpasteurized milk.>>


amen....and what about the natural protection years gone by milk maids had from small pox because they got a mild case of cow pox from drinking that same raw milk?...

5
by on 01/31/2010 04:18pm

Then comes Friday’snews segment.


"One thing in common, vets said, is that all the dogs ingested dead iguanas, which, vets said, can become poisonous as their bodies decay.”


It should not be news that dogs are scavengers and have existed for thousands of years on all kinds of dead animals, animal poop, worms, and other disgusting stuff which dogs think are wonderful.  Poop is especially wonderful if it is goose poop or rabbit poop.  According to most human sensibilities, it is a wonder that dogs are alive at all.  Yet they are one of the most successful of species.


Even a University of Iowa researcher has found value in intestinal worms for humans.  Wish I could provide the link.


And I personally have found value in raw unpasteurized milk for my health and my animals.  Something that clearly merits terrible warnings from most thinkers.  You would think next these people will recommend the sterilization of human breast milk for human infants!


And in recent years, we are finding that bacteria isn't as fearsome as portrayed in Lysol ads and may even be necessary for health.  Bacteria gains legitimacy especially if it is purchased for $30/mo. in a capsule and called a probiotic.  It would be too simple to get good bacteria in real unpasteurized milk.


The warning about dead iguanas being deadly to dogs is just the way the media works in general to misinform and spread fear.  Did the reporters bother to call other vet clinics to see if they had the same problem?  I can imagine the same story being spread in the Midwest only it would be deadly goose poop and rabbit poop which are a great treat and every January's poopsicles.  And the resulting fear ends up in a narrowing life of people taking care not to live very much and our dogs end up dying of boredom.


 

6
by on 01/31/2010 03:37pm

Is this something similar to "toad poisoning" or because the dead iguanas have decomposed?

7
by on 01/31/2010 03:00pm

Look up "coonhound paralysis" and see if that sounds like what you are seeing.


Coonhound paralysis is basically an autoimmune reaction to a protein in raccoon saliva, but I suppose some variation might be possible with an Iguana.  Why not?


There might be a paper in there if it is!


 


Patrick

8
by on 01/31/2010 02:47pm

That should be "Hopefully the owners of dogs that never ate dead iguanas and developed problems and those that have done so without ill effects, will speak up and ask for better science. 

9
by on 01/31/2010 02:45pm

This past cold snap is not the first one in Florida since iguanas started living there in significant numbers.  Reptile die-offs from cold weather would have led to dogs ingesting thawing dead iggy-sicles before.  Did the vets who 'diagnosed' this latest wave of paralysis problems see this before?  Sounds as if some better research is needed before using dead iguanas as a cause is even scientifically useful as a hypothesis, let alone a tested theory.  I'm sure the vets had better scientific training than it appears.  But then, this is America, where quick answers and fixes, even when not actually helpful, are preferred by so many over any other kind of thinking.  Hopefully the owners of dogs that never ate dead iguanas and those that have done so without ill effects, will speak up and ask for better science.

LEAVE COMMENTS

Connect with Facebook or login to leave comments.


About fully vetted

Patty Khuly, VMD, MBA

Photo of Dr Khuly

Dr. Khuly is a former petMD blogger and small animal veterinarian in Miami, Florida, where she practices medicine at Sunset Animal Clinic and serves on the board of the South Florida Veterinary Medical Association. She is a graduate of Wellesley College, the University of Pennsylvania School of Veterinary Medicine, and The Wharton School of Business.

As a significant sideline, she writes...a lot. She authors pet health columns for USA Today, The Miami Herald and Vetstreet. She also writes a popular monthly column for Veterinary Practice News and serves as regular contributor to Veterinary Economics, The Bark, and the Veterinary News Network.

Dr. Khuly lives in South Miami with her brood of hens, goats, dogs, cats...and humans.

Subscribe to Fully Vetted

Most Read Fully Vetted Articles

Check Your Pet Food Bags!
The recall of pet foods manufactured at a Diamond Pet Food plant in Gaston, S.C....
READ MORE
No Excuse for Skipping Rabies Vaccination
The Carlsbad, New Mexico area just suffered through one of the worst rabies outbreaks...
READ MORE
Any Dog Can Bite
May 20-26 is National Dog Bite Prevention Week. Being bitten is just one of the...
READ MORE
A New Link Between Pet and Human Health
A study appearing in the journal Emerging Infectious Diseases points to a new link...
READ MORE

Most Commented Articles

No Excuse for Skipping Rabies Vaccination
The Carlsbad, New Mexico area just suffered through one of the worst rabies outbreaks...
READ MORE
Does Horse Racing Deserve Your Support?
I breathed a big sigh of relief on the evening of Saturday, May 5. The 138th running...
READ MORE
Maggots: Thumbs Up or Down?
The weather is starting to heat up here in Colorado, which means that any day...
READ MORE
Palliative Care ≠ Murder
I talked yesterday about compassion fatigue, which often develops when caregivers...
READ MORE
 
MORE FROM PETMD.COM
©1999-2012 petMD, LLC. All Rights Reserved
x
Stay informed about your pet's health...and more!