Veterinary case

A stray dog killed by a horse bacterium

📍 Brazil — Sete Lagoas, Minas Gerais, Brazil 🐕 Dogs 🎂 about 7 years old 🫁 Respiratory diseases
A stray dog killed by a horse bacterium
🎨 Illustration — reconstruction of the documented case, not a real photo of the animal

⚠️ This information is provided for awareness only and does not replace an examination by a veterinarian.

🤖 Summary produced automatically from the scientific publication cited at the bottom of the page.

A stray dog develops a mysterious lung infection caused by a bacterium usually seen in horses.

What happened?

This stray dog, rescued by firefighters and housed at an animal control center in Brazil, had previously been treated for a tick-borne infection. He seemed to improve, but weeks later he lost weight quickly. He then developed severe breathing distress and deep lethargy, requiring emergency veterinary care.

What did the vet find?

Vets found fluid building up in the dog's chest, making breathing hard. X-rays showed an abnormally dense area between the lungs. When they drained the chest, nearly 1.8 liters of cloudy, reddish fluid came out. Despite care, the dog's breathing worsened and diarrhea appeared. After death, the necropsy revealed a large mass in the center of the chest and severe inflammation of the lungs and their lining, caused by a bacterium usually found in horses, Rhodococcus equi.

What did the vet do?

ℹ️ Treatment given to THIS animal, decided by its veterinarian. It is not a prescription: never apply it without veterinary advice.
Facing severe breathing distress, the team gave oxygen, antibiotics, and pain relief, then drained fluid from the chest. But the real culprit, a rare bacterium, was only identified after the dog's death through lab testing. There was no targeted treatment possible during his life because the exact diagnosis could not be made in time.

What happened next?

Despite intensive care, the dog's condition kept worsening, and he was humanely euthanized to end his suffering. The necropsy later revealed the true cause of the illness, a rare and severe infection.

Advice for the farmer

When breathing trouble and chest fluid don't respond to usual treatment, consider rare causes and act fast, since some infections can also affect humans.

Source

Source
PubMed Central
Title
Pleuropneumonia and mediastinitis caused by Rhodococcus equi in a dog: a case report
Authors
Salarolli T, de Oliveira T, Ferreira F, Zanon I, Prates I, da Costa A, Resende Júnior T, de Carvalho T, Silva R, Santos R.
Licence
CC BY
View the source ↗

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