Yes, Lepto 2 (L2) vaccines are being discontinued by major manufacturers like MSD (Nobivac/Canigen) and replaced with Lepto 4 (L4) vaccines to provide broader protection against more strains of leptospirosis. This transition is happening due to updated World Small Animal Veterinary Association (WSAVA) guidelines recommending the wider, four-strain coverage.

Has Lepto 2 been discontinued?

Transition to the Leptospirosis 4 Vaccine for Your Dog

We have seen several cases recently, so it is a very threat to our pets. We want to inform you that our vaccine manufacturer is discontinuing the Lepto 2 (L2) vaccine. All dogs will now start on or transition to the Lepto 4 (L4) vaccine.

Is the lepto vaccine being recalled?

There has been a voluntary recall by the manufacturer of a vaccine used to protect dogs against the bacterial disease leptospirosis. One dog has died and seven others have had "adverse reactions" within hours of receiving the Treidlia Auslepto vaccine.

Is the Lepto-2 vaccine safe?

However, since then, evidence shows that serious side effects are rare (less than 5 cases per 10,000 injections) and in reality there is little difference in risk between the vaccines. Sadly, that doesn't mean that there are no risks to vaccination, especially as our pets may suffer allergic reactions much as we can.

What dogs should not get the Lepto vaccine?

Even though the American Animal Hospital Association recommends vaccination against leptospirosis in some dogs depending on their lifestyle, the American College of Veterinary Internal Medicine believes all dogs should be vaccinated against leptospirosis, regardless of age, breed, or lifestyle.

Major Changes to Dog Vaccines in 2025: Dr. Jones' Take on NECESSARY Leptospirosis Vaccine

Which dog vaccines are absolutely necessary?

Absolutely necessary dog vaccines (core vaccines) protect against deadly, common diseases and include Rabies, Canine Distemper (D), Adenovirus (Hepatitis - H), Parainfluenza (P), and Parvovirus (P), often combined as DHPP or DAPP, plus Leptospirosis, depending on location/risk. These are essential for all dogs due to the severity and prevalence of these illnesses, with Rabies often legally required.

Can you still get the L2 vaccine for dogs?

In line with this recommendation and to help protect as many dogs as possible, MSD have decided to discontinue supply of L2 to all veterinary practices. What does this mean for you and your pet? All dogs currently vaccinated with L2 will have to transition to L4 at their yearly booster.

Can the Lepto vaccine make my dog sick?

Yes, it's true: the lepto vaccine can cause more reactions than other common vaccines — especially in small breed dogs. But it's important to understand the full picture. Most reactions are mild and short-lived: slight soreness, tiredness, or a low-grade fever.

Is the dog lepto vaccine being recalled?

Reason for voluntary recall: This product recall for Treidlia Auslepto Vaccine for dogs has been initiated due to reports of adverse reactions associated with batch number BN23-126.

Can dogs get Lepto from eating grass?

Yes, dogs can get Leptospirosis (Lepto) from eating or licking grass, dirt, or puddles contaminated with the urine of infected wild animals like rats, raccoons, or deer, as the bacteria live in moist environments and spread through urine. Contact with contaminated water, soil, or even licking contaminated paws after walking outside are common infection routes, making vaccination a key prevention strategy against this serious, potentially fatal bacterial disease.
 

Is Nobivac L2 being discontinued?

Nobivac and Canigen Lepto 2 are being discontinued by the manufacturer. This means shortly, we will no longer be able to vaccinate with this vaccine and will only be offering Lepto 4. Please read the below information regarding the vaccine protocol for dogs. Please contact the practice for further information.

What is the 10 10 10 rule for puppies?

The {Link: 10-10-10 rule for puppies is a potty training guideline: take your puppy out for 10 minutes, to a spot with about 10 feet of space, and supervise them for 10 minutes (or until they go), using praise and treats when they finish; if they don't go, return to a crate for 10-20 minutes and repeat. This method emphasizes consistency, frequent outings (especially after waking, eating, playing), and positive reinforcement to build a solid house-training routine.

At what age should you stop vaccinating your dog?

At what age do you stop vaccinating your dog? Senior dogs do not generally stop requiring vaccinations, but it will depend on your dog's lifestyle and overall health. Once a dog reaches seven years of age, its senior status requires some special considerations to keep them healthy and happy.

What is the 3 2 1 rule for vaccines?

The "3-2-1" rule is a guideline for monitoring lumps at feline vaccination sites, indicating a lump needs veterinary investigation if it's still present 3 months after vaccination, is larger than 2 cm, or is growing larger 1 month after appearing. This rule helps identify potentially dangerous injection-site sarcomas, rare tumors that can develop in cats, prompting biopsies for suspicious masses. 

Which vaccines are not necessary for dogs?

These vaccines protect against less prevalent, diseases that aren't as severe or illnesses that are avoidable through other means. Examples of non-core vaccines are leptospirosis, Lyme disease, Bordetella, and influenza in dogs, or leukemia, Bordetella, and chlamydiosis in cats.

Is Lepto a required dog vaccine now?

As of 2024, the leptospirosis vaccine is considered a core vaccine for dogs. This means it's now recommended for all dogs, regardless of lifestyle.

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