Russia Reports Contaminated Dog Vaccine Linked to 169 Deaths

What happened to the dogs that received the Multican-8 vaccine, and what investigation followed?

At least 169 dogs reportedly died after receiving Multican-8, making the incident far more serious than an ordinary vaccine reaction. The deaths were reported mainly in the Yaroslavl region, which borders Moscow. The case raised concerns about both product safety and official controls.

Authorities recorded more than 300 complaints about medical complications after vaccination, including deaths. The Moscow Prosecutor’s Office investigated with Russia’s Federal Service for Veterinary and Phytosanitary Surveillance in late September. It said the vaccine certificates were likely forged and announced a criminal case involving a knowingly forged quality certificate.

The reports identified Vetbiokhim as the company involved. The vaccine was reportedly contaminated with Aujeszky’s disease virus, a dangerous pathogen for dogs. Vetbiokhim acknowledged the investigation and said it was cooperating with law enforcement. The probe is intended to establish how contamination and certification failures occurred.

What is Multican-8, and what diseases is a dog vaccine like this intended to protect against?

Multican-8 is a combination veterinary vaccine for dogs. Its purpose is to train the immune system against several important canine infections using controlled, harmless or inactivated vaccine material. The article identifies it as the product linked to the deaths, but does not list every disease it normally targets.

Established descriptions of Multican-8 identify protection against canine distemper, adenovirus infections, parvovirus, parainfluenza, coronavirus, and leptospirosis. These diseases can cause respiratory, intestinal, liver, kidney, or nervous-system illness. Aujeszky’s disease virus is not an intended protective ingredient in this vaccine. Its reported presence would therefore represent dangerous contamination.

The article says the vaccine was made by Vetbiokhim and reportedly contaminated with fatal Aujeszky’s disease virus. That claim is part of the reported investigation. The Moscow Prosecutor’s Office is examining the certificate and circumstances surrounding the batch, while Vetbiokhim says it is cooperating.

How large was the reported impact—how many complaints and dog deaths were linked to the vaccine?

The reported impact was substantial. Interfax Russia said authorities registered more than 300 complaints about medical complications after dogs received the vaccine. Those complaints included deaths, so the figure covers a wider range of reported harm than fatalities alone.

The Moscow Times reported that at least 169 dogs died after receiving Multican-8. The deaths occurred primarily in the Yaroslavl region, which borders Moscow. RBC Russia and other outlets attributed the cases to Vetbiokhim’s vaccine and reported contamination with Aujeszky’s disease virus. These figures describe reported cases, not necessarily a final court-verified total.

The scale prompted a joint investigation by the Moscow Prosecutor’s Office and Russia’s Federal Service for Veterinary and Phytosanitary Surveillance. Officials also opened a criminal case over use of a knowingly forged quality certificate. The investigation must clarify the batch’s distribution, the exact number of affected animals, and how the alleged contamination passed controls.

What can happen when a veterinary vaccine is contaminated with Aujeszky’s disease virus?

Aujeszky’s disease, also called pseudorabies, is caused by a herpesvirus that can be devastating in dogs. Dogs may develop severe nervous-system disease, including agitation, loss of coordination, seizures, or paralysis. An especially characteristic sign is intense itching. In dogs, the illness is usually fatal once clinical signs appear.

The danger comes from exposing an animal to a live disease-causing pathogen instead of safe vaccine material. A properly made vaccine presents controlled components that teach immunity without causing the target disease. If a dangerous virus contaminates a dose, vaccination can become a source of infection. The article attributed the reported deaths to Multican-8 contaminated with Aujeszky’s disease virus.

The report does not provide laboratory details about each dog’s diagnosis. It says at least 169 dogs died and more than 300 complaints were recorded. Authorities are investigating the batch, its quality certificate, and the company’s role. Confirming causation requires veterinary records and laboratory evidence.

Why would using a knowingly forged quality certificate make this a criminal case rather than only a product defect?

A product defect may result from an accident, contamination, or technical failure. A knowingly forged quality certificate is different because it involves intentional misrepresentation. Such a document can falsely assure regulators, distributors, veterinarians, and owners that a veterinary drug passed required checks.

The article says the Moscow Prosecutor’s Office opened a criminal case for using a knowingly forged quality certificate for a veterinary drug batch. If proven, the conduct could involve deliberate deception and the release or use of a product without valid safety documentation. That makes the issue a potential crime, beyond a civil product-liability dispute or regulatory recall.

The certificate allegation does not by itself prove who created or used the document, or who knew it was false. Those questions belong to the investigation. Authorities are examining the batch with Russia’s veterinary regulator, while Vetbiokhim has acknowledged the probe and said it is cooperating. The final legal outcome depends on evidence and court findings.

What roles do Vetbiokhim, the Moscow Prosecutor’s Office, and Russia’s veterinary regulator play in this case?

Vetbiokhim is the company identified by Interfax Russia and other outlets as connected to the Multican-8 batch. It acknowledged the investigation in comments to RBC Russia and said it was cooperating with law enforcement. The company’s exact legal responsibility remains for investigators and courts to establish.

The Moscow City Prosecutor’s Office announced the criminal case. It said the case concerned use of a knowingly forged quality certificate for a veterinary drug. The office also investigated the matter with Russia’s Federal Service for Veterinary and Phytosanitary Surveillance in late September. That agency is Russia’s veterinary and agricultural oversight body.

Together, the authorities are examining the batch, its certification, and the reported harm to dogs. Interfax cited more than 300 complaints, while The Moscow Times reported at least 169 deaths. The investigation may determine whether controls failed, whether documents were falsified, and who could be held accountable. The article does not report a final finding.

How are vaccines tested and certified to ensure that they contain the intended harmless vaccine material rather than a dangerous live pathogen?

Veterinary vaccines are tested in stages before release. Manufacturers verify the identity and strength of the intended vaccine material, check that the product is sterile, and test samples for contamination. They also evaluate safety and immune response in controlled studies. Regulators review manufacturing records, test results, and batch documentation before approving distribution.

A key safeguard is comparing the finished batch with the approved formulation. Laboratory tests can detect unexpected viruses, bacteria, or other agents through methods such as cell culture, antigen tests, and genetic testing. Separate samples may be checked for sterility and absence of unwanted live pathogens. Independent quality certificates should match genuine laboratory results and traceable batch records.

The article does not describe which tests were performed on Multican-8. It reports that the certificates were likely forged and that the vaccine was allegedly contaminated with Aujeszky’s disease virus. The case shows why testing, documentation, regulator inspections, and traceability must work together. Authorities are now examining how those safeguards allegedly failed.

Key Facts:

📌 At least 169 dogs reportedly died after receiving Multican-8.

📌 Authorities recorded more than 300 complaints about complications.

📌 Investigators said vaccine quality certificates were likely forged.

📌 Multican-8 is a combination vaccine intended for dogs.

📌 It targets several canine infections, including distemper and parvovirus.

📌 Aujeszky’s disease virus is not an intended vaccine ingredient.

📌 Authorities recorded over 300 complaints after vaccination.