Pneumonia in the Naked Mole-Rat
Pneumonia is an inflammation of the lungs, most often caused by infection. In the naked mole-rat, a small African rodent that lives in underground colonies and is increasingly studied in captivity, this disease affects the deep airways and...
What is it?
Pneumonia is an inflammation of the lungs, most often caused by infection. In the naked mole-rat, a small African rodent that lives in underground colonies and is increasingly studied in captivity, this disease affects the deep airways and can rapidly become serious due to the animal's small size and very specific environmental needs.
This species has unique physiological characteristics (low metabolic rate, tolerance to low oxygen levels) that influence how the disease develops and must be monitored.
Pneumonia remains one of the most serious respiratory diseases that can affect this animal in captivity, particularly in colonies kept in laboratories or private collections.
Key point
Pneumonia can progress rapidly toward severe respiratory distress in this small species; any difficulty breathing must be considered a veterinary emergency.
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:
Signs include breathing that has become faster or more difficult, sometimes accompanied by abnormal breathing sounds. The animal may become less active, less responsive, and withdraw further from the colony.
Decreased appetite may be observed, along with changes in skin appearance (although the naked mole-rat is nearly hairless, the skin may seem less supple) or an overall depressed posture.
In more advanced cases, the animal may show marked difficulty breathing, severe lethargy, or refuse all contact and movement.
When to consult without delay
This list does not replace veterinary advice. It gathers situations that justify a prompt consultation.
Causes and risk factors
Pneumonia in the naked mole-rat is usually of bacterial origin, sometimes triggered by an initial respiratory virus that weakens lung defenses. Opportunistic bacteria normally present in the environment or upper airways can then proliferate and reach the lungs.
Stress, sudden temperature change, inappropriate humidity in the enclosure, or poor ventilation are factors that weaken the animal's natural defenses and create an opening for infection.
In this highly social species living in colonies, close confinement can also facilitate transmission from a sick individual to others.
Young individuals, elderly animals, and those already weakened by another disease are more vulnerable. A burrow temperature that is too low or fluctuating, unsuitable humidity levels, or poor air quality significantly increase the risk.
Overcrowding in the burrow, chronic stress, and insufficient hygiene of the living environment are also contributing factors.
Colonies that have been recently established or have integrated new individuals may present an increased risk of respiratory germ transmission.
Transmission
Transmission occurs mainly through the respiratory route, via droplets or secretions, between individuals of the same colony living in close contact. The natural close living conditions of this social species can promote the spread of a respiratory infectious agent throughout the group.
Diagnosis and care
Diagnosis is the veterinarian's responsibility, based on clinical examination and laboratory tests. Care is decided case by case.
The exotic animal veterinarian begins with a careful clinical examination: observation of breathing, lung auscultation, and temperature measurement if possible without excessively stressing the animal. Because the naked mole-rat is a fragile and uncommon species in clinical practice, the examination must be quick and gentle.
Supplementary tests may be offered depending on the situation: blood analysis, chest X-rays (often performed under light anesthesia due to the animal's small size), and sometimes collection of respiratory secretions to identify the causative agent.
Diagnosis also takes into account the animal's living conditions: temperature, humidity, and air quality in its burrow, as these are determining factors in this species.
Treatment
Management typically relies on antibiotic treatment suited to the identified or suspected bacterial agent, prescribed exclusively by the veterinarian. Supportive care may be added: rehydration, maintenance of optimal ambient temperature, and a calm environment to reduce stress.
In some cases, oxygen therapy or other respiratory comfort care may be considered in a specialized clinic.
No treatment should be administered without veterinary advice, as the therapeutic margin in this small-sized species is very narrow.
Treatment depends on the cause and the animal's condition: it must be determined by a veterinarian. No self-medication.
Prevention
Prevention relies primarily on managing the captive environment. The naked mole-rat needs a high and stable temperature as well as precise humidity levels to remain healthy; any significant deviation can weaken its respiratory tract.
Good burrow ventilation, without cold drafts, and rigorous hygiene of the substrate and bedding areas limit germ proliferation.
Avoiding stress (excessive handling, noise, sudden environmental changes) also helps maintain good immune defenses in this sensitive animal.
Regular veterinary checks of the colony allow early detection of any abnormal signs.
Possible complications
Without treatment, pneumonia can progress toward severe respiratory insufficiency. The infection can also become systemic (septicemia), which significantly worsens the prognosis.
In an animal as small and with such a particular metabolism as the naked mole-rat, dehydration and exhaustion develop quickly in the event of prolonged illness.
Within a colony, uncontrolled pneumonia can also spread to other individuals, particularly the youngest or oldest, who are more vulnerable.
When to see a veterinarian
The animal is breathing faster or with more difficulty than usual.
Abnormal sounds accompany breathing.
The animal remains still and withdrawn, no longer responding normally to its surroundings.
A noticeable drop in appetite is observed over several hours.
Any sign of respiratory distress should be considered an emergency.
Prognosis
The prognosis depends heavily on how quickly treatment is started. When detected early and treated by a veterinarian experienced in exotic species, pneumonia can resolve favorably.
However, because of the animal's small size and the difficulty in administering certain treatments, advanced or complicated pneumonia remains concerning and can be life-threatening.
Complete recovery is possible but often requires prolonged monitoring of living conditions after the acute episode.
Frequently asked questions
Can the naked mole rat transmit its pneumonia to humans?
No, there is no evidence that naked mole rat pneumonia is transmissible to humans. It is not considered a zoonotic disease.
Why is this species particularly sensitive to respiratory problems?
The naked mole-rat naturally inhabits oxygen-poor underground burrows. Its body is adapted to this particular environment, but in captivity, any error in temperature, humidity, or ventilation can weaken its respiratory tract and promote infection.
Should a sick naked mole-rat be isolated from the rest of the colony?
This may be recommended by the veterinarian if a contagious disease is suspected, but this species is extremely social and dependent on its colony. Isolation must therefore be discussed on a case-by-case basis with a professional familiar with the species.
Can this disease be completely prevented?
You can never completely eliminate the risk, but a well-designed enclosure, with stable temperature and humidity and good hygiene, significantly reduces the risk of pneumonia.
References
AVMA — American Veterinary Medical Association
Content reviewed by the TunisieVet editorial team · Updated 04 September 2026
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