Dhv1agspecqlnt

Published: August 9, 2026Updated: August 16, 2026

This test detects the presence of Duck Hepatitis Virus type 1 (DHV-1) antigen in serum samples using a neutralization assay.

Quick summary

{"Detects Duck Hepatitis Virus type 1 antigen in duck serum","Uses neutralization test methodology for detection","Used to diagnose acute DHV-1 infection in ducks","Sample type: serum","Results indicate presence or absence of viral antigen"}

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC: 23035-9
Short code: DHV-1 Ag
Synonyms: DHV1 Ag Spec Ql Nt
Category: cardiac
Sample: serum
Container: Serum separator tube (SST) or plain red top tube
Units: N/A
Fasting: false
Population: adult
Sex: all
Age range: ≥ 0 years
Method: Virus Neutralization Test
CPT: 86609
SNOMED: 122442004
Specimen volume: 1.0-2.0 mL of serum
Stability: Room temperature: 24 hours; Refrigerated (2-8°C): 7 days; Frozen (-20°C or below): 30 days
Hemolysis max: 500
Lipemia max: 1000
Icterus max: 500
TAT: 48–72 hours
Order: routine

What is this test?

The Duck Hepatitis Virus Type 1 Antigen test is a specialized veterinary diagnostic test that detects the presence of Duck Hepatitis Virus type 1 (DHV-1) antigens in serum samples. DHV-1 is a picornavirus that causes acute, fatal liver disease in young ducklings, typically affecting birds less than 4 weeks old. The test uses a neutralization assay, which is a laboratory technique that identifies specific antigens by their ability to be neutralized by known antibodies.

How is the test performed?

A blood sample is collected from the duck, and the serum is separated and tested in a laboratory. In the neutralization test, the serum sample is mixed with known DHV-1 antibodies. If DHV-1 antigens are present in the sample, they will bind to the antibodies, 'neutralizing' them. This interaction can be detected through various laboratory methods, indicating a positive result for DHV-1 antigen presence.

Why is this test important?

Duck Hepatitis Virus type 1 is a highly contagious disease that can cause rapid death in ducklings, with mortality rates up to 90% in affected flocks. Early detection through antigen testing is crucial for implementing control measures, isolating infected birds, and preventing widespread outbreaks. This test helps veterinarians and poultry farmers diagnose the disease quickly and take appropriate action to protect the rest of the flock.

Reference range

Negative / Not Detected - No neutralizing antibodies detected against Duck hepatitis virus 1 antigenN/A

Specimen: serum

No special preparation required. Standard venipuncture procedures apply. Inform laboratory of any recent vaccinations or antiviral treatments.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

What are the clinical signs of Duck Hepatitis Virus type 1 infection?

Infected ducklings typically show signs including sudden death, lethargy, weakness, diarrhea, greenish droppings, and neurological symptoms such as convulsions or paddling movements. The disease progresses rapidly, with death often occurring within 24-48 hours of first symptoms.

How is Duck Hepatitis Virus transmitted?

DHV-1 is highly contagious and spreads through direct contact with infected birds, contaminated feed, water, equipment, and clothing. The virus can also be transmitted mechanically by insects. Infected ducks can shed the virus in their feces for several weeks.

Can Duck Hepatitis Virus be treated?

There is no specific antiviral treatment for DHV-1. However, affected flocks can be supported with improved husbandry, electrolytes in drinking water, and antibiotics to prevent secondary bacterial infections. Prevention through vaccination and strict biosecurity measures is the primary control strategy.

What is the difference between DHV-1, DHV-2, and DHV-3?

Duck Hepatitis is caused by three different viruses: DHV-1 (classical duck hepatitis virus, a picornavirus), DHV-2 (a novel virus related to astroviruses), and DHV-3 (a virus similar to turkey hepatitis virus). They cause similar clinical disease but are antigenically distinct, requiring different diagnostic tests and vaccines.

How can DHV-1 outbreaks be prevented?

Prevention strategies include: (1) Vaccination of breeder ducks to provide maternal antibodies to ducklings; (2) Strict biosecurity measures including footbaths, controlled access, and equipment disinfection; (3) All-in, all-out management practices; (4) Regular health monitoring and testing; (5) Proper disposal of dead birds and manure.

Sources

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy