Leptospirosis Requirements for Dogs Going to New Zealand: Why We Recommend Doxycycline

TLDR: New Zealand requires all dogs to meet leptospirosis requirements before travel. There are two options: a negative MAT blood test within 30 days of shipment, or doxycycline treatment for at least 14 consecutive days within 30 days of shipment. We recommend doxycycline. The MAT test carries a risk of false positives that can create significant delays, and doxycycline is the more reliable path to compliance.

This is one of the clearest recommendation calls on the New Zealand route. The two options are not equally reliable, and the consequences of a false positive on the MAT test are serious enough that the choice is straightforward.

What Are New Zealand's Leptospirosis Requirements for Dogs?

New Zealand requires dogs to meet one of two leptospirosis requirements before travel. Both must be completed within 30 days of shipment.

Option 1 is a MAT test, which stands for microscopic agglutination test. The test must return a negative result within 30 days of shipment.

Option 2 is doxycycline treatment for at least 14 consecutive days within 30 days of shipment.

Both options satisfy the requirement. Only one is recommended.

What Is the MAT Test and Why Is It Not Recommended?

The MAT test is a blood test that checks for leptospirosis antibodies. A negative result within 30 days of shipment satisfies New Zealand's leptospirosis requirement.

The problem is that the MAT test has a known risk of false positives. A false positive means the test returns a positive result even when the dog does not have an active leptospirosis infection. If your dog returns a false positive, the result is treated as a positive finding and your dog's travel will be affected.

Resolving a false positive takes time. Depending on the circumstances, it can push your travel date back significantly. For a move that has taken months of preparation, a false positive on a single blood test is a costly and avoidable problem.

What Is Doxycycline Treatment and Why Do We Recommend It?

Doxycycline is an antibiotic that is used to treat and prevent leptospirosis in dogs. New Zealand accepts a course of doxycycline treatment for at least 14 consecutive days within 30 days of shipment as an alternative to the MAT test.

We recommend doxycycline over the MAT test because it eliminates the false positive risk entirely. There is no test result to interpret and no risk of an ambiguous finding that delays the move. The treatment is administered, documented, and the requirement is met.

What Does the Doxycycline Course Need to Cover?

The doxycycline course must run for at least 14 consecutive days. It must be completed within 30 days of shipment. Both the duration and the timing window must be met for the treatment to satisfy New Zealand's requirement.

The course must be documented on the health certificate.

How Does This Differ From Australia's Leptospirosis Requirement?

Australia's leptospirosis requirement is different. Australia requires dogs to either be vaccinated against Leptospira interrogans serovar Canicola, provided the booster is administered between 12 months and 14 days before export, or pass a negative MAT test within 45 days of export. Vaccination is the recommended route for Australia due to the same false positive risk on the MAT test.

New Zealand does not use vaccination as an option. The two choices for New Zealand are the MAT test and doxycycline treatment. Owners moving a dog to New Zealand should not apply Australia's vaccination pathway to their New Zealand preparation.

Leptospirosis is one of several time-sensitive requirements that must be completed within 30 days of your dog's travel date. If you want help coordinating the full pre-travel treatment and documentation schedule, our team manages every step of the process. Get a free quote to start planning.

Frequently Asked Questions

What are the two options for meeting New Zealand's leptospirosis requirement?

Option 1 is a negative MAT test within 30 days of shipment. Option 2 is doxycycline treatment for at least 14 consecutive days within 30 days of shipment. Both satisfy the requirement, but we recommend doxycycline due to the false positive risk on the MAT test.

Why is the MAT test not recommended for New Zealand?

The MAT test carries a risk of false positives. A false positive result is treated as a positive finding and will affect your dog's travel. Doxycycline treatment eliminates this risk entirely and is the more reliable path to compliance.

How long does the doxycycline course need to be?

At least 14 consecutive days, completed within 30 days of shipment. Both the duration and the timing window must be met. The course must be documented on the health certificate.

Can I use the same leptospirosis vaccination that is required for Australia?

No. New Zealand does not accept vaccination as a leptospirosis compliance option. The two options for New Zealand are the MAT test and doxycycline treatment. Do not apply Australia's vaccination pathway to a New Zealand move.