Hepatitis Delta Antibody
Private Hepatitis Delta Antibody testing in London for £211, assessing HDV exposure in the context of Hepatitis B infection.
Turnaround time
6 business days
Biomarkers count
1
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Overview of the Hepatitis Delta Antibody Test
The Hepatitis Delta Antibody blood test detects antibodies associated with exposure to Hepatitis Delta Virus, also known as HDV.
The test contains 1 biomarker: Hepatitis Delta Antibody.
Hepatitis Delta is unusual because HDV cannot establish productive infection independently.
It requires Hepatitis B Virus, specifically the presence of Hepatitis B Surface Antigen, to complete its life cycle.
HDV infection therefore occurs either when HBV and HDV are acquired around the same time or when someone who already has Hepatitis B subsequently acquires Hepatitis Delta.
This distinction matters because HDV can substantially worsen the course of Hepatitis B.
Chronic HBV-HDV coinfection is associated with faster progression of liver fibrosis, cirrhosis and serious liver complications than Hepatitis B alone.
The antibody test shows whether the immune system has been exposed to HDV.
It does not by itself prove that active HDV replication is currently occurring.
Where Hepatitis Delta antibodies are positive, HDV RNA testing is generally required to determine whether active viraemic infection is present.
Testing is especially relevant in people with known HBsAg-positive Hepatitis B, particularly where liver disease appears unexpectedly severe or rapidly progressive.
A positive HDV antibody result without evidence of Hepatitis B requires careful review because genuine HDV infection depends on HBV.
What Does the Hepatitis Delta Antibody Test Check?
The test detects antibodies produced after exposure to Hepatitis Delta Virus and is intended primarily for assessment of people with Hepatitis B infection. This test measures 1 biomarker.
Hepatitis Delta Antibody
Detects antibodies associated with previous or current HDV exposure and supports assessment of Hepatitis Delta in people with Hepatitis B infection.
Who May Benefit From the Hepatitis Delta Antibody Test?
HDV antibody testing is particularly important in people with current Hepatitis B infection who require assessment for possible coinfection.
People with a positive Hepatitis B Surface Antigen result - HDV can only establish infection in the presence of Hepatitis B.
People with chronic Hepatitis B and unexpectedly severe liver disease - HDV coinfection can accelerate liver damage.
People with persistently raised liver enzymes despite known HBV - Additional viral coinfection may need investigation.
People with rapidly progressive fibrosis or cirrhosis and Hepatitis B - HDV is an important potential contributor.
People from regions where Hepatitis Delta is more prevalent - Epidemiological risk can increase the value of testing.
People who inject drugs and have Hepatitis B - Blood exposure can transmit both HBV and HDV.
People with a previous uncertain HDV result - Repeat serology or HDV RNA may be required.
People specifically advised to have HDV testing by a hepatologist or infectious-disease specialist - The test is most useful within a structured HBV assessment.
How to Prepare
Do not stop prescribed Hepatitis B treatment simply to obtain the antibody test.
If HDV antibodies are detected, active infection generally requires further molecular assessment.
Symptoms and Reasons to Consider the Hepatitis Delta Antibody Test
Symptoms of HDV overlap with Hepatitis B and other causes of acute or chronic liver disease.
Jaundice in a person with Hepatitis B - Additional acute liver inflammation can occur with HDV infection.
Unexpected worsening of chronic Hepatitis B - HDV superinfection can produce more severe disease.
Rapidly rising liver enzymes - Acute or worsening viral hepatitis may require broader testing.
Marked fatigue with known HBV infection - Significant liver inflammation can cause systemic symptoms.
Right upper abdominal discomfort - Liver inflammation can cause discomfort in this region.
Dark urine or pale stools - These can occur with significant hepatitis.
Unexplained progression of fibrosis or cirrhosis - HDV should be considered in people with HBsAg-positive disease.
Symptoms cannot distinguish Hepatitis Delta from Hepatitis B or other liver diseases.
Jaundice, confusion, severe vomiting, abdominal swelling or signs of acute liver failure require urgent medical assessment.
How to Book Your Hepatitis Delta Antibody Test
The Hepatitis Delta Antibody test can be booked privately for people requiring assessment of HDV exposure, particularly in the context of Hepatitis B.
Choose the Hepatitis Delta Antibody
Select the individual HDV antibody blood test online.
Select your sample collection option
Choose an in-clinic blood draw or professional home or hotel phlebotomy where appropriate.
Attend your appointment
A trained healthcare professional collects the required venous blood specimen.
Laboratory analysis
Your serum undergoes specialist testing for Hepatitis Delta antibodies.
Receive your results securely
Your authorised result is delivered securely and can be interpreted with Hepatitis B markers and liver-health investigations.
When Will I Receive My Results?
The current London Blood Tests turnaround for Hepatitis Delta Antibody is approximately 6 days after the sample reaches the laboratory.
HDV antibody testing is a specialist virology investigation.
The sample undergoes serological analysis, quality-control procedures and laboratory authorisation before reporting.
Turnaround begins from laboratory receipt rather than necessarily from the blood-draw time.
If Hepatitis Delta antibodies are detected, additional HDV RNA testing may be required to establish whether active viraemia is present.
That molecular investigation will have a separate turnaround.
Understanding Your Results
A negative result means Hepatitis Delta antibodies were not detected at the assay threshold.
In an HBsAg-positive patient, this makes previous HDV exposure less likely.
A positive antibody result indicates previous or current exposure to HDV.
It does not distinguish resolved exposure from active viraemic infection.
HDV RNA is therefore required to determine whether the virus is actively replicating.
Interpretation should always incorporate the person's Hepatitis B status, because HDV depends on HBV.
A positive result in a person with chronic Hepatitis B can be clinically important because active HDV coinfection is associated with more aggressive liver disease.
Why Book With London Blood Tests?
London Blood Tests provides specialist HDV antibody testing for people undergoing comprehensive Hepatitis B and liver assessment.
Targeted HDV exposure testing - Detects antibodies associated with Hepatitis Delta Virus.
Particularly relevant to Hepatitis B - HDV requires HBV for replication.
Useful when liver disease appears unexpectedly severe - HDV can accelerate liver damage.
Can guide molecular follow-up - Positive antibodies can lead to HDV RNA testing.
Specialist virology analysis - Samples undergo dedicated Hepatitis Delta serology.
Professional blood collection - Clinic and suitable home or hotel appointments are available.
Secure reporting - Receive your authorised result confidentially.
Clear pricing - The Hepatitis Delta Antibody test costs £211.
Private Hepatitis Delta Antibody Blood Test in London
London Blood Tests provides private Hepatitis Delta Antibody testing for people requiring assessment of HDV exposure.
The test costs £211 and measures 1 biomarker.
The current London Blood Tests turnaround is approximately 6 days after laboratory receipt.
A positive antibody result does not establish active HDV infection and should normally be followed by appropriate molecular assessment.