Infectious Pacheco's disease
Also known as Psittacine Herpesvirus Infection
A severe viral infection in parrots causing liver damage and sudden death.
See a vet now if
- unexplained lethargy
- sudden death of another bird
Symptoms
Early signs
- lethargy
- loss of appetite
As it progresses
- greenish diarrhea
- nasal discharge
Emergency signs
- sudden death
- severe depression
Causes
- Psittacine Herpesvirus
Risk factors
- high bird density
- poor quarantine practices
Body parts affected
How vets diagnose it
- physical examination
- blood tests
Treatment
At home
- isolate infected birds
- maintain good hygiene
At the vet
- antiviral medications
- supportive care
Prevention
- quarantine and test new birds
- strict hygiene and biosecurity
- reduce stress to limit viral reactivation
Outlook
- Prognosis
- Poor prognosis due to rapid progression.
- Typical recovery
- Varies, often rapid progression.
Infectious Pacheco's disease questions
How is Pacheco's disease transmitted?
It is transmitted via direct contact with infected birds or contaminated surfaces.
Can humans contract Pacheco's disease?
No, it is not a zoonotic disease.
Is there a vaccine available?
No commercial vaccine is currently available. An earlier inactivated vaccine was discontinued due to adverse reactions, so prevention relies on quarantine, hygiene, and biosecurity.
What species are most at risk?
Parrots, cockatoos, and macaws are highly susceptible.
How can I protect my birds?
Quarantine and test new birds before introducing them to your flock, and maintain strict hygiene and biosecurity.
Full clinical detail
Overview
Infectious Pacheco's disease is a highly contagious viral infection that affects parrots and other psittacines. It is caused by a herpesvirus and can lead to severe liver damage and sudden death.
Causes
Pacheco's disease is caused by the Psittacine Herpesvirus. This virus spreads rapidly among birds, especially in environments with high bird population densities such as aviaries and pet shops.
Symptoms & Signs
Early Symptoms
- Lethargy
- Loss of appetite
Advanced Symptoms
- Greenish diarrhea
- Nasal discharge
Emergency Signs
- Sudden death
- Severe depression
Diagnosis
Diagnosis typically involves:
- Physical examination
- Blood tests
Treatment Options
Home Care
- Isolate infected birds
- Maintain good hygiene
Veterinary
- Antiviral medications
- Supportive care
Surgical
- None
Home Care
Ensure that your bird's environment is clean and stress-free. Isolate affected birds to prevent the spread of the virus.
Prevention
- Quarantine and test new birds before adding them to a flock
- Strict hygiene and biosecurity
- Reduce stress to limit viral reactivation
Note: No commercial vaccine is currently available. An earlier inactivated vaccine was discontinued due to adverse reactions.
Prognosis & Recovery
The prognosis is often poor due to the rapid progression of the disease. Immediate veterinary care is crucial.
When to See a Vet
- Unexplained lethargy
- Sudden death of another bird in the flock
Worried about your pet?
This page is general guidance, not a diagnosis. A vet should examine your pet before any treatment starts.