City Cast Las Vegas logo

What Las Vegans Should Know About Mystery Dog Disease

Posted on December 13, 2023   |   Updated on September 30, 2025
Brooke Lewis

Brooke Lewis

Photo of a lethargic dog.

Lethargy is one symptom of a mysterious new canine disease. (Basak Gurbuz Derman/Getty)

You might’ve heard about a mysterious respiratory illness reported in dogs across Nevada and in other states. So, how can you protect your dog and what are the symptoms?

What Is the Illness?

Although medical experts have not been able to figure out the cause of the respiratory illness, the symptoms are similar to canine influenza or kennel cough. Some symptoms to look out for include labored breathing, coughing, sneezing, nose or eye discharge, lethargy or decreased appetite, and pneumonia.

How Can You Protect Your Dog?

An airborne disease, it’s spread from dog to dog — and they’re likely contagious before symptoms appear — so it’s best to stay away from boarding houses, pet daycares, and dog parks. Dogs should also not share toys or bowls with others. You might even begin “rethinking where you play fetch,” in order to avoid dog-heavy areas. If you’re going away for the holidays and normally board your dog, try to find someone to dogsit. Keep up to date on your dog’s vaccines.

What’s the Outlook?

At the moment there’s no definitive test or treatment, and the Nevada Department of Agriculture is asking veterinarians to report dogs that have apparent symptoms. As of Nov. 30, several suspected cases have been noted, but so far there doesn’t seem to be an outbreak here. And if there is, here’s a bit of goodish news: Many of the dogs who catch this illness survive.

Share article

Hey Las Vegas

Stay connected to City Cast Las Vegas and get ready to join the local conversation.

Can't subscribe? Turn off your ad blocker and try again.

The latest in Las Vegas

Las Vegas HistoryOctober 30

Why Isn’t Nevada Day On Halloween This Year?

Nevada Day and Halloween both fall on Friday this year. There's a reason for that. A few of 'em, actually.

A road sign that says "Welcome to Nevada" on a desert highway.
Las Vegas' BestOctober 30

Your Guide to Las Vegas in November 2026

Your guide to things to do in Las Vegas in November, including food festivals and Day of the Dead celebrations.

Keep It LocalOctober 29

4 Boulder City Stops for Food, Books, and Railroad History

Plan a Boulder City day with Fox Smokehouse BBQ, the Nevada State Railroad Museum, Dam Roast House & Browder Bookstore, and Dough Yummy.

Three thick slices of Richard’s zucchini bread at Dough Yummy, served with butter, sliced bananas, strawberries, and syrup on a pale blue plate.
Keep It LocalOctober 29

Explore Boulder City’s New Travel Nevada Adventure Center

Boulder City’s new Adventure Center makes booking a bike ride, asking about a kayaking trip, and planning an exploration of Southern Neva...

 turquoise van outside the Nevada Adventure Center's building in Boulder City, with desert mountains and sunlit clouds behind it.
Las Vegas HistoryOctober 26

The Most Haunted Casinos in Las Vegas

Las Vegas casinos are full of history, stories ... and spirits. Some even have a reputation for being haunted.

The exterior of the El Cortez casino at night.
Las Vegas, ExplainedOctober 23

Take This Week's Las Vegas News Trivia Quiz

Ready for a challenge? Take our weekly quiz, based on the news and stories of this past week in Las Vegas.

A clear jar with a yellow sticky that reads "TIP".
Keep It LocalOctober 22

Bloomscroll These Las Vegas Floral Artists

Need a pick me up? Bloomscroll these four local feeds for showgirl-worthy orchids, a rose piano for John Legend, and zodiac-inspired bouq...

Yellow sunflower arrangements and white pillar candles line a curved black staircase in a white room with framed artwork and a black-and-white checkered floor.
Las Vegas, ExplainedOctober 22

Developers Plan to Build a Lake in Bonnie Springs

A vote is scheduled on a proposed lake in Bonnie Springs as a new luxury home development slowly takes shape.

A building up against desert mountains and a sign that reads "Bonnie Springs Motel Resort"