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Canine IgA Antibody to Canine Distemper Virus (Serum)

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

This test measures the level of Immunoglobulin A (IgA) antibodies in your dog’s blood that specifically target the canine distemper virus. These antibodies indicate whether the dog has been exposed to the virus or has developed immunity.

Quick summary

["IgA antibodies help protect against infections by distemper, a serious viral disease in dogs."]

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

Key facts at a glance

LOINC
24431-9
Short code
IgA Canine Ser ID-mCnc
Synonyms
IgA Canine Ser ID-mCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
immune-diffusion
CPT
82784
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What Does This Test Measure?

IgA antibodies are a type of antibody produced by the immune system. In this test, we focus on antibodies that target the canine distemper virus. These antibodies are part of the body’s immune response to past or potential exposure to the virus. High levels may suggest immunity or prior infection, while low levels might indicate a lack of immunity.

Why Might This Test Be Ordered?

Your veterinarian may recommend this test to check if your dog has immunity against distemper, especially before vaccinations, after exposure to the virus, or to monitor immune status in dogs with weakened immune systems.

How Is the Sample Collected?

A blood sample is drawn from your dog, typically from a vein in the leg or ear. The blood is then processed to separate the serum, which is tested for IgA antibodies.

What Are Common Results and What Do They Mean?

Results are qualitative (positive or negative) rather than numeric. A positive result indicates the presence of IgA antibodies against distemper, suggesting immunity. A negative result means no detectable antibodies, which may mean the dog has not been exposed or vaccinated recently.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

IgA Antibody to Distemper (Serum)

Frequently asked questions

What Does a Positive Result Mean?
A positive result means your dog has developed IgA antibodies against the distemper virus, indicating immunity. This could be due to prior infection or vaccination. However, immunity may not last indefinitely, so ongoing monitoring may be recommended.
What If My Dog Has a Negative Result?
A negative result means no detectable IgA antibodies were found. This could mean your dog has not been exposed to the virus recently or has not received immunity through vaccination. Your veterinarian may recommend vaccination or further testing if needed.
How Often Should This Test Be Done?
The frequency depends on your dog’s health, vaccination history, and risk of exposure. For puppies or dogs with unknown immunity, testing may be done before vaccinations. For adults, it may be recommended annually or as advised by your veterinarian.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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