POULTRY · OWNER EDUCATION
Respiratory Disease in Poultry
Coughing, sneezing, facial swelling or open-mouth breathing can involve contagious disease, air quality or multiple infections.
THE SHORT VERSION
Understanding supports better veterinary conversations.
Coughing, sneezing, facial swelling or open-mouth breathing can involve contagious disease, air quality or multiple infections. Similar signs can have very different causes, so the animal's species, husbandry, examination findings and diagnostic results all matter.
What is this condition?
Coughing, sneezing, facial swelling or open-mouth breathing can involve contagious disease, air quality or multiple infections. Similar signs can have very different causes, so the animal's species, husbandry, examination findings and diagnostic results all matter.
Which animals can be affected?
Risk factors, examination findings and management can differ between species and individual patients.
Why can it happen?
- Viral, bacterial, fungal or parasitic disease.
- Ammonia, dust, crowding, ventilation problems and biosecurity failures.
What might an owner notice?
- Sneezing, coughing, nasal discharge or swollen eyes and face.
- Open-mouth breathing, reduced feed intake, egg drop or flock spread.
How is the problem investigated?
- Flock examination with testing or necropsy selected for the outbreak.
- Review of ventilation, new birds, wildlife contact and vaccination history.
What might treatment involve?
- Isolation and supportive care with cause-specific flock treatment directed by a veterinarian.
- Environmental correction and reportable-disease action when required.
This is an overview, not a prescription or a recommendation for a specific individual animal.
What can owners do at home?
- Record appetite, water intake, waste output, activity, breathing and body weight when it is safe to do so.
- Photograph the enclosure, food labels or flock environment and bring a concise timeline to the veterinary visit.
- Follow the veterinarian's exact instructions for medication, feeding, isolation, rechecks and environmental correction.
Avoid actions that could make care less safe.
- Do not give human medication, leftover antibiotics, livestock medication or another animal's treatment without veterinary direction.
- Do not force-feed an animal that is struggling to breathe, cannot swallow, is severely weak or may have an obstruction.
- Do not delay care when appetite, breathing, urination, movement or responsiveness changes rapidly.
What can the longer-term outlook involve?
The outlook varies with the cause, severity, how quickly care begins and whether the animal's environment or nutrition can be corrected.
Can risk be reduced?
- Provide species-appropriate nutrition, housing, sanitation and preventive veterinary care.
- Learn the individual's normal appetite, behavior, body condition and waste pattern so change is recognized early.
When should you arrange care?
- Contact a veterinarian promptly for sneezing, coughing, nasal discharge or swollen eyes and face. or open-mouth breathing, reduced feed intake, egg drop or flock spread..
- Arrange reassessment if signs recur, treatment is not working or another animal becomes affected.
Seek emergency veterinary care if you notice:
SEEK EMERGENCY VETERINARY CARE- Rapid flock spread, severe breathing effort, blue combs or sudden deaths.
Sources behind this guide
VeterinaryPartner — client education from the Veterinary Information NetworkPrimary veterinary or veterinary-university guidance ↗Merck Veterinary Manual: poultryPrimary veterinary or veterinary-university guidance ↗Content last reviewed: September 17, 2026. Review status: veterinary-informed; independent veterinarian review not yet completed.