Georgia’s Mystery Dog Cough Follows a Familiar Pattern

In April 2025, a Macon clinic treated about 15 coughing dogs in two months. Dr. Mary-Frances Wylie could not promise that a swab from one animal would explain the next.

The dogs sounded like they had whooping cough and moved as if they had no energy. Holiday boarding, grooming, and daycare had packed them together after President’s Day and spring break, the same mixing that defined a national kennel-cough scare in 2023.

Fifteen Dogs Walked Into a Macon Clinic

Wylie, a veterinarian at Northside-Wesleyan Animal Hospital on Charter Boulevard, said the illness was hard to count because no one could name a single cause. She had seen about 15 cases in two months and still could not treat them as copies of one another.

I think because we just don’t know exactly what it is and because if we cultured and took a swab of one dog that’s not necessarily what it’s gonna be for every dog.

Dr. Mary-Frances Wylie, veterinarian, Northside-Wesleyan Animal Hospital

The cough often needed more than one round of drugs. Standard antibiotics did not settle it the way a simple kennel-cough case is supposed to. Wylie told owners the germs moved through the air, so a careful household still could not shut them out once dogs shared a room.

She was more worried about older dogs with heart or breathing trouble than about healthy adults. For those animals she favored time at home and fewer trips to dog parks and daycares. She also wanted more Macon dogs vaccinated, a point she had already made after the 2023 spike.

The 2023 Cough Already Had a Name

That earlier wave had a clinical name, canine infectious respiratory disease complex, or CIRDC. Clinics still call it kennel cough. It is a bundle of viruses and bacteria that look alike in the exam room, which is why a honking dog in 2023 was billed as a mystery in more than a dozen states, Georgia among them.

A USDA spokesperson said common CIRDC causes showed up in many sequenced samples and that testing had not shown a novel pathogen or a single infectious cause. Dr. Scott Weese, a professor at the University of Guelph Ontario Veterinary College, put the same idea in plainer language.

Most times the strange cases we see are just the usual suspects behaving a little bit differently.

Dr. Scott Weese, professor, University of Guelph Ontario Veterinary College

Weese wrote that the pattern did not fit a brand-new bug racing across the continent. He guessed at patchy increases driven by the ordinary bacteria and viruses vets already know. By February 2024 he said the national surge had calmed. Georgia clinics then watched the same cough climb again after the winter holidays of 2025.

THE COUGH’S PATH FROM 2023 TO MACON

1. Late 2022: The New Hampshire Veterinary Diagnostic Laboratory begins studying an atypical, treatment-resistant dog cough.
2. November 2023: Georgia is listed among states seeing CIRDC-like cases, and University of New Hampshire researchers report an uncharacterized bacterium in a subset of swabs.
3. December 2023: USDA testing finds common CIRDC causes in many samples and no single new pathogen.
4. January 25, 2024: UNH reports genetic material from the possible bacterium in 31 of 226 screened dogs.
5. February 2024: Weese says the national caseload has eased.
6. April 2025: Wylie’s Macon clinic treats about 15 coughing dogs in two months after holiday boarding.
7. May 22, 2025: The Georgia Department of Agriculture quarantines the Douglas County Animal Shelter after a pneumovirus outbreak.
8. August 19, 2025: A Louisiana State University and Cornell University team publishes a winter 2023-2024 swab study that finds known CIRDC agents, not a new virus.

The dates do not describe two different diseases. They describe the same kennel-cough complex returning whenever dogs are stacked in close rooms.

Why a Swab From One Dog Does Not Match the Next

CIRDC is a crowd of germs, not one invader with a single lab signature. Frontiers researchers list adenovirus type 2, distemper, herpesvirus 1, influenza, pneumovirus, parainfluenza, respiratory coronavirus, Bordetella bronchiseptica, Mycoplasma canis, Mycoplasma cynos, and Streptococcus zooepidemicus among the usual mix, and they note that several of those agents also sit in healthy dogs.

That is the trap Wylie described in Macon. Culture one throat, and you may grow Bordetella. Culture the dog in the next run, and you may grow Mycoplasma, a virus, or nothing the clinic panel is built to catch. Co-infections are common, so a drug aimed at one organism leaves the rest untouched. Viral cases do not answer to antibiotics at all, which is why several rounds of medication can still leave a dog coughing.

Incubation is short, a few days to two weeks, and spread is dog-to-dog plus airborne droplets. Asymptomatic shedders keep the chain going between obvious outbreaks. A clinic that treats on signs alone is not being careless. It is working inside a complex that was designed, by biology, to refuse a one-bug answer.

The Association Does Not Track These Cases

Local newscasts said the Georgia Veterinary Medical Association had identified an unknown respiratory disease and was watching it rise. On April 18, 2025, the association said that account was wrong.

Executive Director Dr. Keri Riddick wrote that GVMA does not identify or track respiratory diseases or any other animal diseases. The group supports vets through education and advocacy. Disease counts, she said, belong with public-health agencies and research labs. Owners with a coughing dog should call their own veterinarian.

GVMA had already posted owner guidance during the 2023 wave: do not assume the sound is ordinary kennel cough, ask the clinic how to arrive so other pets are protected, keep a sick dog out of public areas, warn any boarding kennel with a reservation, and skip communal water bowls. None of that required a statewide case board, and Georgia still did not have one in 2025.

WHAT WE KNOW

• Clinic load: Northside-Wesleyan treated about 15 coughing dogs in two months in spring 2025, with a whooping sound, low energy, and weak response to a first round of antibiotics.
• Where it jumps: Wylie tied the rise to boarding, grooming, and daycare after President’s Day and spring break, when families leave town and dogs share air.
• National lab work: USDA sequencing in 2023 found common CIRDC causes in many cases and no single new pathogen.

WHAT IS UNCONFIRMED

• A Georgia-wide count: GVMA does not keep one, and no state dashboard published a 2025 total.
• One new bug in Macon: Wylie’s clinic did not name a pathogen that explained every swab.
• BARDiD as the cause: New Hampshire researchers still treat that bacterium as a lead under study, not a proven answer.

The gap between a TV mystery and a trade-group correction is the same gap Wylie met in the exam room. No one in Georgia was holding a master list. Each clinic was staring at its own tired dogs.

Boarding After President’s Day and Spring Break

Wylie did not blame a rare virus for the timing. She blamed proximity. More dogs go to boarding, grooming, and daycares when families travel, she said, and that is when the cough becomes more common. The 2023 panic on public message boards already named those same rooms, plus dog parks and shared water bowls. The 2025 advice did not need a new poster. It needed owners to treat holiday kennels as a respiratory risk, not a babysitting errand.

A month after the Macon interviews, a shelter outbreak showed what density does when the germ is named. On May 22, 2025, the Georgia Department of Agriculture quarantined the Douglas County Animal Shelter in Douglasville. County records say thirteen dogs were diagnosed with Pneumovirus and three tested positive for parvovirus. About 100 dogs were held at the start because the viruses move so easily. The state order lifted on June 9, with about 30 dogs still watched for 14 days in a separate wing.

Vanessa Francikowski, director of Douglas County Animal Services, said staff expect coughing dogs, but this run went from a cough to full pneumonia in 48 hours. Pneumovirus lasts longer, spreads faster, and can sink into the lungs, she said, and there is no vaccine for it. Intake shots cannot cover a germ that has no shot. She added that the viruses came in with public surrenders whose vaccine history was unknown, not from some hidden source inside the building.

WHAT OWNERS CAN STILL CONTROL

• The calendar: Ask a boarding or daycare kennel what coughs it has seen in the past two weeks before you drop a dog for a holiday trip.
• The sick animal: Keep a honking dog out of parks, playgroups, and groomers, and tell any facility that recently housed it.
• The bowl: Skip communal water dishes, which pass droplets the same way a shared toy does.
• The high-risk dog: If the animal is old or already has heart or breathing disease, Wylie would skip parks and daycare until the local wave cools.
• The shot record: Stay current on the kennel-cough components your vet actually stocks, knowing they cover some of the mix and not all of it.

Emergency clinics in Georgia were still treating ordinary kennel cough into 2026. The mystery branding faded. The crowding did not.

What the Winter 2023 Samples Contained

A team at Louisiana State University and Cornell University tested 50 nasal and throat swabs from coughing dogs in six states, including Georgia, between December 2023 and February 2024. The dogs mostly coughed (78 percent). Some had nasal or eye discharge (30 percent) or sneezed (22 percent). Researchers ran a multiplex panel for 12 known CIRDC agents, then sequenced leftovers looking for something new.

WHAT THE 50-SWAB PANEL FOUND

Taken together, 64 percent of samples tested positive for at least one known or suspected respiratory pathogen. That is 32 of 50 dogs. The paper also picked up adenovirus type 2, herpesvirus 1, and distemper in some animals, plus calicivirus, circovirus, and, in a single dog, vientovirus, a finding the authors said has no clear clinical meaning yet.

The conclusion was blunt. The winter 2023-2024 rise was not tied to a new pathogen. The usual CIRDC crowd was enough. Shots given to puppies in the United States often cover Bordetella, adenovirus type 2, distemper, and parainfluenza, and outbreaks still happen because the rest of the list has no shot, or the dog was never vaccinated, or the germs piled on together.

A Bacterium Researchers Still Cannot Grow

New Hampshire’s lead sits beside that finding rather than on top of it. Pathologist Dr. David Needle’s group first flagged a small, non-culturable, Mycoplasma-like organism in a slice of 2022-2023 swabs. In an early New Hampshire set, 21 of 30 samples carried a shared unusual DNA segment. A January 25, 2024, update put the possible organism in 31 of 226 dogs: 15 of 64 in New Hampshire, 10 of 45 in Oregon, 5 of 33 in Rhode Island, and 1 of 1 in Connecticut. Samples from several other states in that round did not show it.

The AKC Canine Health Foundation later gave Needle more than $300,000 to keep going. By 2025 he had 60 samples that tested positive for the organism, now called BARDiD, short for bacteria associated with respiratory disease in dogs. It resembles IOLA, a human airway organism described in 2021. It will not grow in a dish, so the lab has to pull it out of noisy nasal swabs that also hold dog DNA and every other microbe in the nose.

In a May 27, 2026, foundation update, Needle said sequencing was complete and the team was close to full genome coverage. He wants that map to give drug researchers a target and, later, to land BARDiD on respiratory PCR panels so vets can see what not to treat with. Causation is still open. Robert Gibson, then managing director of the New Hampshire lab, had already warned that finding the organism in sick dogs is not the same as proving it made them sick.

Until a panel like that is on a Georgia bench, a Macon exam still starts where Wylie started: one tired dog, a cough that sounds worse than it may be, and a swab that might belong only to that animal.

Frequently Asked Questions

How Long Can a Dog With Bordetella Stay Contagious?

Dogs with Bordetella bronchiseptica can remain contagious for up to eight weeks after signs fade, and shedding can last longer, according to Cornell University’s Riney Canine Health Center. That window is why a dog that sounds better can still seed a kennel. Typical CIRDC illness itself often runs up to two weeks in uncomplicated cases.

Can People Catch This Cough From Dogs?

The American Veterinary Medical Association said the risk of people getting sick from dogs with canine infectious respiratory disease is extremely low. AVMA President Rena Carlson said journalists asked that question during the 2023 scare, and the practical step remains washing hands after handling your dog or someone else’s. Bordetella bronchiseptica can infect people in rare cases, mostly in those with weak immune systems, which is a separate problem from the ordinary kennel-cough wave in pets.

When Do Bordetella Vaccines Start?

Cornell advises starting Bordetella vaccination as early as 6 to 8 weeks of age, with boosters each year, or every six months for dogs that live in high-risk settings such as boarding and daycares. The shot reduces the chance of disease from that one bacterium and can soften illness. It does not cover Mycoplasma, pneumovirus, or every virus in the CIRDC pile.

When Should a Coughing Dog Go In the Same Day?

Go the same day if breathing is labored, gums look pale or blue, the dog collapses, or a cough turns into open-mouth distress, especially in an old dog or one with heart disease. Francikowski’s shelter cases moved from a cough to pneumonia in 48 hours, which is the pace that should empty a waiting list. A dog that is still eating, has no fever, and honks without struggling can usually be seen on a same-week appointment, kept home until then, and walked away from other dogs.

BARDiD is not on the standard PCR panels a Macon clinic runs today. A coughing Georgia dog is still sorted by how it sounds, where it has been, and whatever the first swab happens to grow.

Disclaimer: This article is news reporting and analysis of clinic interviews, veterinary association statements, government shelter notices, and published laboratory studies. It is informational only and is not veterinary medical advice, a diagnosis, or a treatment plan for any animal. Readers should consult a licensed veterinarian before changing vaccines, boarding plans, isolation steps, or medications for a coughing dog. Figures and case counts reflect the cited documents on the dates those documents carry and may change as testing and local caseloads change.