Antibody to Neospora caninum (IgG) in serum/plasma

What Does This Test Measure?

The test looks for IgG antibodies, a type of protein your immune system makes to fight off infections. If you have these antibodies, it suggests your body has encountered Neospora caninum at some point, though it doesn’t always mean you’re currently infected. Antibodies can stay in your system for months or years after the initial exposure.

Why Might You Need This Test?

Doctors may order this test if you or your pet has symptoms like neurological issues (such as seizures, weakness, or balance problems), or if you’ve been exposed to dogs with known Neospora infections. It’s also sometimes used in research or diagnostic follow-ups for rare parasitic infections.

How Is the Test Performed?

A blood sample is taken from a vein in your arm. The sample is sent to a lab, where it’s tested using an immunoassay method to detect the presence of Neospora-specific antibodies. The results are compared to a standard to determine if antibodies are present.

What Do the Results Mean?

A positive result means your immune system has likely been exposed to Neospora caninum, though infection may not always be active. A negative result suggests no detectable antibodies, meaning either you’ve never been exposed or the exposure occurred very recently. Results alone don’t confirm active infection and should be interpreted by your healthcare provider.