Hepatitis Contagiosa Canis, HCC (Infectious Canine Hepatitis) in Dogs
- Synonyms: Canine Adenovirus infection Type 1, Infectious Hepatitis in Dogs, Infectious Canine Hepatitis), Rubarth’s disease
- Occurrence: rarer
- 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
InfectiousInfectious describes the ability of a pathogen to be transmitted from one individual to another and trigger an infection. It also refers to diseases caused by such pathogens. canineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. hepatitis (ICH), also known as canineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. contagiousContagious means infectious. Diseases that can easily be transmitted from one animal to another or from animals to humans are referred to as contagious. hepatitis, 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. that primarily affects the liver of dogs. It is caused by CanineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. Adenovirus Type 1 (CAV-1) and can take both acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention. and chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. courses.
The most important facts at a glance
Infectious canine hepatitis (HCC) is caused by CanineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. Adenovirus Type 1 (CAV-1). This highly contagiousContagious means infectious. Diseases that can easily be transmitted from one animal to another or from animals to humans are referred to as contagious. 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. spreads 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. objects. It enters the body via the tonsils or pharynxThe pharynx is the part of the neck behind the oral cavity and nose. It serves as a passage / transit for air and food and plays an important role in breathing and swallowing. and mainly affects the liver, but can also affect the kidneys, eyes, and vascular system. The disease manifests itself in symptoms such as Fever, weakness, loss of appetite, Vomiting, and DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems.. A definitive 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 made by serological tests or PCR to detect the 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. genome.
Since there is no specific antiviral 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., treatment aims to relieve the symptoms. 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 relievers, and anti-inflammatory drugsAnti-inflammatory drugs are medications that reduce inflammation. They can be divided into nonsteroidal anti-inflammatory drugs (NSAIDs) and corticosteroids and are used in dogs and cats to reduce Inflammatory conditions and Pain. are some of the 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. 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. depends on factors such as the age and immune status of the dog. PreventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. is mainly through 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., which is part of the standard 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. schedule. Good hygiene conditions and avoiding Contact with infected animals are also important.
Research focuses on new vaccines and therapeutic approaches to better understand and treat the disease. The development of safer and more effective vaccines is a priority, as is understanding the genetic and immunological mechanisms of the disease. Advances in these areas could reduce the impact of HCC on dogs worldwide.
Causes
ICH is caused by CanineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. Adenovirus Type 1 (CAV-1), which belongs to the Adenoviridae family. This virus is closely related to CanineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. Adenovirus Type 2 (CAV-2), which is responsible for respiratoryRespiratory refers to breathing or the process of breathing. Respiratory diseases affect the respiratory tract and can impair the ability to breathe effectively. diseases. CAV-1 is highly contagiousContagious means infectious. Diseases that can easily be transmitted from one animal to another or from animals to humans are referred to as contagious. and can be 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. objects.
After 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., 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. enters the body via the tonsils or pharynxThe pharynx is the part of the neck behind the oral cavity and nose. It serves as a passage / transit for air and food and plays an important role in breathing and swallowing. and spreads via the bloodstream. It primarily affects the liver, but can also affect the kidneys, eyes, and vascular system of the dog. Viremia, the presence of viruses in the blood, leads to a systemic 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. that is fought by the body’s immune response. The severity of the disease depends on the virulence of the pathogenA pathogen is a microorganism or virus that can cause disease in its host. Pathogens include bacteria, viruses, fungi, and parasites. and the dog’s immune status.
Causes for the spread of CAV-1 are often poor hygiene conditions, high animal density and lack of immunityImmunity is the body's ability to protect itself against infections, diseases, or foreign substances. It can be natural, as with innate immunity, or acquired, as with adaptive immunity, which develops after an infection or vaccination. due to lack of 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.. Since 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 relatively stable in the environment, it can be transmitted via 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, water or feed. Infected dogs excrete 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. via saliva, urine and feces, which increases 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. for other dogs.
Symptoms
The symptoms of an ICH 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. can vary depending on the course of the disease. In the acute phase, affected dogs often show Fever, loss of appetite, and lethargy. The liver is the main target organ, which is why symptoms such as Vomiting, DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems., and AbdominalThe term “abdominal” refers to anything that concerns the belly or the abdomen. It is an adjectival expression used to describe the location, symptoms, or conditions that occur in the abdominal area. pain are common. Jaundice, recognizable by yellowish mucous membranes and eyes, can also be an indicator of liver involvement.
Another characteristic symptom is the so-called “Blue Eye”, a corneal opacity caused by an immune-mediated inflammation of the eyes. This can be temporary or, in severe cases, permanent. Some dogs also experience Bleeding tendencies, such as nosebleeds or pinpoint hemorrhages on the skin and mucous membranes, which indicates an impairment of blood coagulationBlood coagulation is a process that helps stop Bleeding when a blood vessel is damaged. Platelets and certain proteins in the plasma form a blood clot that seals the wound..
In severe cases, seizures, comaA coma is a deep state of unconsciousness where an individual cannot be awakened and does not respond to stimuli. In dogs and cats, it can be caused by severe illnesses, poisoning, or neurological problems., and sudden Death can occur, especially in very young or immunocompromised animals. ChronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. courses are also possible, whereby the symptoms may be milder and more unspecific, but can lead to liver dysfunctionDysfunction refers to an impaired or abnormal function of an organ or system in the body. This can be due to diseases, disorders, or damage and can affect the quality of life. in the long term.
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 ICH is based on a combination of clinical symptoms, laboratory tests, and specific diagnostic procedures. A blood count can provide indications of hepatitis, such as elevated liver enzymesEnzymes are biological catalysts that accelerate specific chemical reactions in the body without being consumed. They play a crucial role in virtually all physiological processes. and altered blood coagulationBlood coagulation is a process that helps stop Bleeding when a blood vessel is damaged. Platelets and certain proteins in the plasma form a blood clot that seals the wound. values. Further examination of the urine can provide additional information about kidney function.
To confirm 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., a serological test can be performed 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 CAV-1. In some cases, a polymerase chain reaction (PCR) can be used to directly detect the 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. genome. This method is particularly useful because it allows specific identification of the pathogenA pathogen is a microorganism or virus that can cause disease in its host. Pathogens include bacteria, viruses, fungi, and parasites..
An ultrasoundUltrasound refers to sound waves that are above the hearing threshold of the human ear. In medicine, ultrasound is used for diagnostic imaging procedures to visualize internal organs, tissues, and blood flow. examination of the liver and other affected organs can help assess the severity of the disease. In some cases, a liver biopsyA biopsy is a medical procedure in which a small amount of tissue is removed from the body to be examined under a microscope for signs of disease. Biopsies can help diagnose cancer and other conditions. may be required to make a definitive 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., especially in chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. or atypical courses of the disease.
Therapy
The therapy for ICH depends on the severity of the symptoms and aims to alleviate the clinical signs and promote healing. There is no specific antiviral 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. against CAV-1, so the focus is on symptomatic and supportiveSupportive refers to supportive treatments that aim to alleviate symptoms and improve quality of life without directly treating the underlying cause of the disease. therapy.
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. is often necessary to correct dehydrationDehydration occurs when the body loses more fluid than it takes in. This can lead to a number of problems, including headaches, Dizziness, and in extreme cases, renal failure or Cardiovascular collapse. and electrolyte imbalances. Pain relievers and anti-inflammatory drugsAnti-inflammatory drugs are medications that reduce inflammation. They can be divided into nonsteroidal anti-inflammatory drugs (NSAIDs) and corticosteroids and are used in dogs and cats to reduce Inflammatory conditions and Pain. can be used to relieve AbdominalThe term "abdominal" refers to anything that concerns the belly or the abdomen. It is an adjectival expression used to describe the location, symptoms, or conditions that occur in the abdominal area. pain and Fever. In severe cases, corticosteroidsCorticosteroids are a class of steroid hormones that occur naturally in the body and can also be produced synthetically. They have anti-inflammatory and immunosuppressive properties and are used in veterinary medicine to treat a variety of conditions. can be administered to suppress 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. and reduce inflammation.
Antibiotics may be required to treat secondary bacterial infections that can result from the body’s weakened 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.. A special diet with easily digestible nutrients can support liver function and promote recovery.
Prognosis and follow-up care
The prognosis for ICH depends on various factors, including the age, immune status of the dog, and the severity of the disease. Dogs with a mild form of the disease usually have a good prognosis and can recover completely.
In severe cases, especially in young or unvaccinated dogs, the disease can take a critical course and even end in Death. However, early 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. 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. can significantly improve the chances of survival.
ChronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. courses can lead to permanent damage to the liver, which requires long-term medical care. Regular monitoring of liver function and an adapted diet are essential in such cases.
Prevention
The most effective method for the preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. of ICH is 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.. The vaccineA vaccine is a substance that stimulates the immune system to develop immunity against specific pathogens without causing the disease itself. Vaccines may contain weakened or inactivated pathogens, toxoids, or recombinant antigens. against CAV-1 is part of the standard 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. schedule for dogs and offers reliable protection against the disease. As a rule, basic immunization is carried out in puppyhood, followed by regular booster vaccinations.
Additional preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. measures include good hygiene practices, especially in environments with many dogs, such as kennels or animal shelters. Regular cleaning and disinfection of surfaces and objects that dogs come into Contact with can reduce the risk of transmission of CAV-1.
Contact with infected animals should be avoided to prevent infection. Owners should ensure that their dogs do not have access to potentially 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. water sources or feeding places 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..
Outlook on current research
Canine contagiousContagious means infectious. Diseases that can easily be transmitted from one animal to another or from animals to humans are referred to as contagious. hepatitis (Hepatitis contagiosa canis or ICH) is a significant disease caused by CanineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. Adenovirus Type 1 (CAV-1). Research on HCC is currently focused on various areas, including the development of improved vaccines, the identification of new therapeutic approaches, and the understanding of the genetic and immunological mechanisms underlying the disease.
A significant advance in research concerns vaccineA vaccine is a substance that stimulates the immune system to develop immunity against specific pathogens without causing the disease itself. Vaccines may contain weakened or inactivated pathogens, toxoids, or recombinant antigens. development. Current studies aim to develop vaccines that not only provide longer immunityImmunity is the body's ability to protect itself against infections, diseases, or foreign substances. It can be natural, as with innate immunity, or acquired, as with adaptive immunity, which develops after an infection or vaccination. but are also safer. Researchers are exploring the possibility of developing genetically modified or subunit-based vaccines that use specific protein structures of the virus to stimulate a robust 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. without the risk of a vaccination disease.
Another area of research is the study of 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 HCC. Scientists are working to better understand how CAV-1 infects liver cells and what immunological reactions this triggers. This research could lead to new therapeutic approaches that minimize or reverse the damage 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..
The development of antiviral drugs is also an active area of research. Researchers are identifying and testing various compounds that could directly attack 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. or modulate the host’s 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. to reduce the disease burden. These efforts could lead to new 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 for dogs suffering from HCC.
There are also studies dealing with the geneticsGenetics is the science of genes, heredity, and the variation of organisms. It studies how genetic information is passed from generation to generation and how it influences the development, appearance, and behavior of living things. 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. itself. By sequencing and analyzing the genetic information of CAV-1, scientists are trying to understand the genetic variations associated with different degrees of virulence and infectivity. These findings could help identify specific 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. strains that are associated with more severe disease courses.
Another important aspect of research is the monitoring and epidemiology of HCC. Scientists analyze the spread and frequency of CAV-1 infections in different geographical regions to identify patterns and trends that could be helpful in developing preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. strategies. Monitoring also helps to quickly detect and contain outbreaks.
Collaboration between various research institutions worldwide has accelerated progress in these areas. By sharing data and resources, researchers can reach new insights faster and translate their findings into practice.
Overall, research on HCC remains a dynamic field with a promising potential to improve the preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring., 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., 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. of this disease. Advances in vaccineA vaccine is a substance that stimulates the immune system to develop immunity against specific pathogens without causing the disease itself. Vaccines may contain weakened or inactivated pathogens, toxoids, or recombinant antigens. technology, the discovery of new drugs, and the understanding 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. biology promise to reduce the impact of HCC on dog populations worldwide.