Aujeszky’s Disease, AD (viral infection caused by a herpesvirus, Pseudorabies) in Dogs
- Synonyms: Pseudorabies, Pseudorabies, Pseudolyssa, Morbus Aujeszky, Mad itch, Infectious Bulbar Paralysis,
- Occurrence: very rare
- Location of disease: General/Whole body
When to visit the vet?
Urgent see a veterinarian within 24 hours
If the condition worsens / symptoms persist, consult a veterinarian.
Definition
Aujeszky’s Disease, also known as Pseudorabies, is a viral infectionA viral infection occurs when a virus enters the body and infects healthy cells, which can lead to disease symptoms. The severity and type of symptoms can vary depending on the type of virus. caused by a herpesvirus that can lead to severe neurological symptoms and ultimately Death in dogs.
The most important facts at a glance
Aujeszky’s Disease, also known as Pseudorabies, is caused by Suid Herpesvirus 1 (SHV-1), which belongs to the herpesvirus family. Pigs are the main hosts and reservoirs of the VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants., while dogs and other animals such as cattle and cats are considered dead-end hosts and often become severely ill. The VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants. can be transmitted through direct Contact with infected animals or materials, the consumption of raw pork, or less commonly, through the air. In dogs, the infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease. leads to symptoms such as Itching, loss of appetite, uncoordinated gait, and increased Restlessness. DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is based on symptoms, exposureExposure refers to the Contact with or subjection to certain substances, environmental factors, or pathogens. In veterinary medicine, this can include Contact with toxins, allergens, or infectious agents that can cause health problems in dogs and cats. historyThe medical history is the systematic collection of a patient's medical history through questioning. It includes information about previous illnesses, treatments, allergies, and lifestyle habits., and laboratory tests such as serological tests and PCR. There is no specific therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions., only supportiveSupportive refers to supportive treatments that aim to alleviate symptoms and improve quality of life without directly treating the underlying cause of the disease. measures to alleviate symptoms. The prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. for infected dogs is poor, as the disease progresses rapidly and often ends fatally. PreventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. involves avoiding Contact with pigs and pork products. Research is underway to develop vaccines and new diagnostic methods to better control the disease and detect outbreaks early. A multidisciplinary approach is necessary to combat Aujeszky’s Disease in the long term.
Causes
Aujeszky’s Disease is caused by Suid Herpesvirus 1 (SHV-1), also known as Pseudorabies VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants. (PRV). This virusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants. belongs to the herpesvirus family and is closely related to the virusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants. that is the main host species in pigs. Pigs are the natural hosts and primaryPrimary refers to the first or original cause of a disease or condition, as opposed to secondary causes or symptoms that develop from it. reservoirs of this virusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants., while other animals such as cattle, cats, and dogs are considered dead-end hosts, in whom the disease often ends fatally.
The virusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants. is typically transmitted through direct Contact with infected animals or contaminatedContaminated describes something that has been polluted by harmful microorganisms, chemicals, or other dangerous substances. In veterinary medicine, this can affect food, water, toys, or the environment. materials. Dogs can become infected by consuming raw pork or through Contact with infected pigs. The virusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants. can also be transmitted through the air or by Contact with contaminatedContaminated describes something that has been polluted by harmful microorganisms, chemicals, or other dangerous substances. In veterinary medicine, this can affect food, water, toys, or the environment. surfaces, although this is less common.
The Pseudorabies VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants. is very resilient and can survive in the environment for several days to weeks, especially at cooler temperatures. This increases the risk of indirect transmission to dogs if they live or stay in agricultural or rural areas.
Symptoms
The symptoms of Aujeszky’s Disease in dogs typically begin with non-specific signs such as Fever, loss of appetite, and lethargy. These symptoms can easily be overlooked as they also occur in many other diseases.
As the disease progresses, more severe neurological symptoms occur. These include excessive salivation, itching (especially in the head and neck area), screaming, confusion, and coordination disorders. The itching can be so intense that the affected dogs injure themselves.
A characteristic symptom is also paralysisParalysis is the complete loss of muscle activity in one or more areas of the body, which can lead to immobility and loss of sensation. Paralysis can be caused by injuries, illnesses, or disorders of the nervous system., which can develop rapidly. Dogs may show an uneven gait, limb weakness, and eventually complete paralysisParalysis is the complete loss of muscle activity in one or more areas of the body, which can lead to immobility and loss of sensation. Paralysis can be caused by injuries, illnesses, or disorders of the nervous system.. This stage is often accompanied by seizures, which indicate progressiveProgressive describes a condition or disease that worsens over time. This term is often used to characterize the course of an illness that causes increasingly severe symptoms or damage. damage to the central nervous systemThe CNS (central nervous system) consists of the brain and spinal cord. It is responsible for processing information and controls most functions of the body and behavior..
The symptoms usually progress rapidly, and the disease usually leads to the death of the animal within a few days.
Key signs: peracutePeracute describes a very sudden and extremely severe course of a disease. Peracute diseases can lead to serious health problems or Death within hours to a few days. onset with extreme, localized Itching plus severe salivation and rapidly developing neurological signs after possible pig Contact/raw pork.
Diagnosis
The DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. of Aujeszky’s Disease is based on a combination of clinical symptoms, medical historyThe medical history is the systematic collection of a patient's medical history through questioning. It includes information about previous illnesses, treatments, allergies, and lifestyle habits. data, and laboratory tests. Since the symptoms are non-specific and can occur in other neurological diseases, an accurate medical historyThe medical history is the systematic collection of a patient's medical history through questioning. It includes information about previous illnesses, treatments, allergies, and lifestyle habits., including possible exposureExposure refers to the Contact with or subjection to certain substances, environmental factors, or pathogens. In veterinary medicine, this can include Contact with toxins, allergens, or infectious agents that can cause health problems in dogs and cats. to pigs or pork products, is crucial.
Laboratory tests are required to definitively detect the Pseudorabies VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants.. These include serological tests to detect antibodyAn antibody is a protein produced by the immune system to recognize and bind specific antigens. By binding to the antigen, antibodies can help destroy or neutralize it. against the VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants., as well as PCR (polymerase chain reaction)The polymerase chain reaction is a molecular biology technique used to replicate and analyze specific DNA sequences. In veterinary medicine, PCR is used for diagnostic purposes, including the identification of pathogens. tests that can identify viralViral refers to viruses and their effects on the organism. Viral infections in dogs and cats can range from harmless colds to severe, life-threatening diseases. DNADNA (deoxyribonucleic acid) is the molecule that carries the genetic instructions for the development, function, and reproduction of all known living organisms and many viruses. It is located in the cells of an organism and contains the information for heredity. in tissue or body fluids such as saliva or cerebrospinal fluid (CSF)Cerebrospinal fluid (CSF), also known as Liquor cerebrospinalis or brain-spinal fluid, surrounds the brain and spinal cord. It serves as protection and for the nutrient supply of the central nervous system as well as for the disposal of metabolic products..
In some cases, a pathologicalPathological refers to anything related to diseases or their processes. Pathological changes are those that deviate from the normal structure or function and indicate a disease. examination of brain and nerve tissue may also be performed post-mortemPost-mortem, also called postmortal, means "after Death." In veterinary medicine, it refers to examinations or autopsies performed to determine the cause of Death or diseases after an animal's Death. to identify typical changes caused by the VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants..
Therapy
There is no specific therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. for Aujeszky’s Disease in dogs. Therapy is usually supportiveSupportive refers to supportive treatments that aim to alleviate symptoms and improve quality of life without directly treating the underlying cause of the disease. and aims to alleviate symptoms and improve the animal’s well-being. This includes fluid therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions., pain management, and in some cases, the administration of anticonvulsantsAnticonvulsants, also called antiepileptic drugs, are medications used to control or prevent seizures. They are used in dogs and cats with epilepsy or other conditions that cause seizures. to control Seizures.
Since the disease is almost always fatal in dogs, euthanasia is often considered to prevent unnecessary suffering, especially if the neurological symptoms are rapidly worsening.
Prevention of exposureExposure refers to the Contact with or subjection to certain substances, environmental factors, or pathogens. In veterinary medicine, this can include Contact with toxins, allergens, or infectious agents that can cause health problems in dogs and cats. to the virusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants. is the best protectionProtection refers to safeguarding against diseases or harm. In veterinary medicine, this can include protecting animals through vaccinations, the use of parasite control products, or providing a safe environment., as there is no cure. This means that dogs should be kept away from potentially infected pigs or contaminatedContaminated describes something that has been polluted by harmful microorganisms, chemicals, or other dangerous substances. In veterinary medicine, this can affect food, water, toys, or the environment. materials.
Prognosis and follow-up care
The prognosis for dogs with Aujeszky’s Disease is very poor. The disease progresses rapidly and in most cases leads to Death within a few days. The severe neurological symptoms caused by the infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease. are usually irreversible.
Due to the rapid progression of the disease and the lack of effective therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. options, the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. for infected dogs is extremely unfavorable. Early detection and avoidance of exposures are crucial to minimize the risk of infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease..
Prevention
PreventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. of Aujeszky’s Disease focuses on minimizing the risk of exposureExposure refers to the Contact with or subjection to certain substances, environmental factors, or pathogens. In veterinary medicine, this can include Contact with toxins, allergens, or infectious agents that can cause health problems in dogs and cats. to the Virus. This includes ensuring that dogs do not have access to pigs or pork products, especially raw meat that could contain the VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants..
In areas where the disease is endemic, pet owners should be particularly careful and ensure that their animals do not have Contact with farms where pigs are kept. Similarly, vaccinationVaccination is the process of administering a vaccine to develop immunity against a specific infectious disease. It is one of the most effective methods of prevention of infectious diseases. of pigs in affected areas can help reduce the spread of the Virus.
Pet owners should also ensure they are informed about the symptoms and risks of the disease so they can act quickly if an infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease. is suspected. This can help control the spread of the disease and reduce the risk of infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease. in other animals.
Outlook on current research
Aujeszky’s Disease, also known as Pseudorabies, is a viral disease caused by Suid Herpesvirus 1 (SHV-1). This disease primarily affects pigs but can also infect other animals, including dogs. Current research is intensively working to better understand the pathogenesisPathogenesis describes the process of the origin and development of a disease, including the mechanisms that lead to the disease's symptoms and signs. of the VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants. and its interaction with various host organisms.
A significant part of the research focuses on the molecular biology of the VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants.. Scientists are investigating the genetic structure of SHV-1 to understand how it replicates in host cells and how it evades the immune systemThe immune system is the body's defense system against infectious agents such as bacteria, viruses, fungi, and parasites. It comprises a complex network of organs, cells, and molecules that work together to protect the body.. These studies are crucial for developing new vaccines that could protect not only pigs but also other animals from infection.
Another important focus is on epidemiological surveillance. Researchers analyze the spread of the VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants. in agricultural farms and wild animal populations. By using modern techniques such as genome sequencing, they can track the spread patterns of the VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants. and better understand which factors promote transmission between animals.
The development of diagnostic methods is also an active research area. New tests that are faster and more accurate could help detect and contain outbreaks early. These DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. tests are particularly important for use in regions where the disease has not yet been eradicated.
Another interesting aspect of the research is the investigation of the immune responseAn immune response is the immune system's reaction to foreign substances (antigens), such as microorganisms or proteins. It involves a series of processes aimed at recognizing, fighting, and eliminating these antigens. in different animal species. While pigs are considered the main hosts of the VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants., other animals such as dogs show different symptoms and disease courses. Researchers are trying to find out why certain species are more or less susceptible to the disease and how the immune systemThe immune system is the body's defense system against infectious agents such as bacteria, viruses, fungi, and parasites. It comprises a complex network of organs, cells, and molecules that work together to protect the body. of these animals reacts.
The development of therapeutic intervention strategies is also an important research area. In addition to vaccinationVaccination is the process of administering a vaccine to develop immunity against a specific infectious disease. It is one of the most effective methods of prevention of infectious diseases., antiviral drugs could play a role in the therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. of infected animals. Studies on cell cultures and animal models help to identify potential active substances and evaluate their effectiveness.
Additionally, research is being conducted on how environmental factors and agricultural practices influence the spread of the VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants.. Researchers work with farmers to develop strategies that minimize the risk of VirusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants. transmission, such as improved biosecurity measures and management practices.
Overall, research shows that a multidisciplinary approach is required to effectively combat Aujeszky’s Disease. Advances in genetic research, epidemiology, immunology, and veterinary medicine contribute to deepening the understanding of the disease and finding new ways for PreventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. and therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions..
A long-term goal of the research is to eradicate Aujeszky’s Disease worldwide. Through international cooperation and the exchange of research results, scientists hope to develop strategies that are effective across national borders.