Infectious rhinitis of salamanders (herpesvirus infection)
Infectious rhinitis of salamanders is a rare viral disease caused by a herpesvirus affecting the upper respiratory tract of these amphibians. It occurs mainly in spotted salamanders (Salamandra salamandra) kept in captivity, but can also oc...
What is it?
Infectious rhinitis of salamanders is a rare viral disease caused by a herpesvirus affecting the upper respiratory tract of these amphibians. It occurs mainly in spotted salamanders (Salamandra salamandra) kept in captivity, but can also occur in the wild. The infection causes inflammation of the nostrils and nearby mucous membranes, sometimes accompanied by an overall weakened state. This disease remains poorly documented compared with other viral pathologies of amphibians such as ranavirus.
Commonly observed signs
These signs are neither exhaustive nor specific. Only a veterinarian can establish a diagnosis.
Related signs — each one links to its page:
The affected salamander displays nasal discharge, sometimes clear and sometimes thicker. The nostrils may appear irritated, swollen, or blocked. The salamander often breathes with greater difficulty, which may manifest as more pronounced throat movements. General lethargy is common: the animal hides more, moves less, and appetite decreases. In some cases, small crusts or lesions appear around the snout. The eyes may also appear slightly cloudy if the infection spreads to nearby tissues.
When to consult without delay
This list does not replace veterinary advice. It gathers situations that justify a prompt consultation.
Causes and risk factors
The disease is caused by a herpesvirus, a family of viruses known to preferentially infect mucous membranes and cause infections that are sometimes recurrent. In salamanders, this virus targets the tissues of the upper respiratory tract. Transmission likely occurs through direct contact between animals, through water shared in terrariums or enclosures, or through contaminated materials (tanks, décor, maintenance equipment).
Salamanders kept in captivity at high population density, with poor water or terrarium hygiene, are at increased risk. Chronic stress from unsuitable temperatures, poor water quality, or unbalanced diet can weaken the animal's natural defenses and promote disease development. Introducing new individuals without prior quarantine also increases the risk of transmission.
Transmission
The virus spreads mainly through direct contact between infected and healthy animals, as well as through contaminated water or surfaces (substrates, décor, maintenance equipment shared between enclosures).
Diagnosis and care
Diagnosis is the veterinarian's responsibility, based on clinical examination and laboratory tests. Care is decided case by case.
Diagnosis is based on observing respiratory and skin signs during examination by a veterinarian specializing in exotic animals. Samples from the nasal mucous membranes may be taken to confirm the presence of virus through specialized laboratory testing. A general examination of the animal and its environment (water quality, terrarium conditions) is part of the diagnostic approach.
Treatment
There is no widely validated specific antiviral treatment for this disease in salamanders. Management is mainly based on supportive care: improving housing conditions, reducing stress, and sometimes symptomatic treatments to relieve local inflammation. Antibiotics may be considered by the veterinarian if bacterial infection develops secondarily.
Treatment depends on the cause and the animal's condition: it must be determined by a veterinarian. No self-medication.
Prevention
Prevention relies mainly on good terrarium hygiene: clean water changed regularly, and frequent cleaning of surfaces and decorations. Any new salamander added to a group should be isolated in quarantine for several weeks before contact with other animals. It is also recommended to avoid overcrowding terrariums and to maintain temperature and humidity conditions suited to the species, to reduce stress. Maintenance equipment should not be shared between terrariums without disinfection.
Possible complications
Secondary bacterial or fungal infection can develop on mucous membranes already weakened by the virus. In severe cases, prolonged breathing difficulty can affect the animal's overall health and compromise its ability to feed properly.
When to see a veterinarian
Persistent nasal discharge lasting several days.
Difficulty breathing or abnormal breathing patterns.
Prolonged loss of appetite or refusal to eat.
Crusting or sores appearing around the snout.
Marked lethargy with the animal remaining hidden at all times.
Prognosis
The outlook varies depending on how quickly treatment begins and the salamander's overall health. With improved housing conditions and appropriate supportive care, many salamanders gradually recover. Without proper management, secondary complications can worsen the course of the disease.
Frequently asked questions
Can this disease be transmitted to humans?
No, this disease is specific to salamanders and is not known to affect humans.
Can a healed salamander retransmit the virus?
Like many herpesviruses, viral persistence in an apparently recovered animal cannot be ruled out. Caution should be exercised before reintroducing the animal into a group.
Should you isolate a sick salamander from the others?
Yes, it is recommended to isolate any animal showing suspicious signs in order to limit the risk of spreading to other salamanders in the terrarium.
Is there a vaccine available for this disease?
No, there is no vaccine available for this disease in salamanders.
References
WOAH — Organisation mondiale de la santé animale (ex-OIE)
Content reviewed by the TunisieVet editorial team · Updated 19 August 2026
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