Fungal infection in chinchillas – also contagious to humans

Skin fungal infections are also common in chinchillas. The most common are ringworm and bald patch, which cause changes to the fur and skin of chinchillas. Skin fungal infections are not life-threatening, but can lead to persistent problems due to their contagious nature. Skin fungi can also be transmitted to or from humans to animals, which is referred to as a zoonosis.

INHALT
Causes and transmission Symptoms Diagnosis Treatment Forecast Prophylaxis
Causes and transmission

Fungal spores (the developmental stages of the pathogen), which can cause a fungal skin disease, are present in the air almost everywhere. The main pathogen responsible for fungal skin disease in chinchillas is called Trichophyton mentagrophytes, but other Microsporum species also occur. Not all animals are at risk of developing the disease. Healthy chinchillas kept in appropriate conditions often carry the pathogen without ever showing symptoms, but it is possible for other animals to become infected.

Visible symptoms of the disease only appear when certain factors are present. These factors include:

  • poor hygiene due to irregular or inadequate cleaning of cages (moisture)
  • lack of or incorrect sand (fur care not possible)
  • Stress due to hierarchy fights (inappropriate group composition) or
  • Wounds from bites or other injuries
  • newly purchased animals (potential carriers of fungal spores)

Symptoms

A skin fungus infection manifests itself in circular hairless patches, which initially appear mainly on the ears, nose, muzzle and limbs, but later spread to the entire body. The skin in these areas may be reddened, scaly and covered with a whitish crust. The affected animals may also experience mild itching. Open skin wounds often lead to secondary bacterial infections.

If you notice any changes in your pet's coat or skin, please take them to a veterinarian as soon as possible to determine the cause and begin appropriate treatment in a timely manner.

Diagnosis

The veterinarian will conduct a thorough clinical examination of your pet and ask you some important questions about its medical history. Information about the onset and extent of symptoms, any underlying conditions, and changes in the animal's care or environment are particularly important. In most cases, the veterinarian will be able to make an initial diagnosis.

However, as other skin diseases can cause similar symptoms, the diagnosis can only be confirmed by taking a skin scraping (tissue sample) and culturing it for fungi. Some Microsporum species can be detected using a Wood's lamp, as they fluoresce under short-wave light. This method is not very reliable, as not all skin fungi exhibit this fluorescence.

Chinchilla at the vet
To make a diagnosis, the veterinarian takes a skin scraping
Treatment

Mild fungal skin infections can often be treated by changing the chinchilla sand and using a local antifungal medication. The affected areas of skin are rubbed with a special ointment prescribed by a veterinarian. In more severe cases of fungal infection, a fungicidal medication is prescribed, which must be administered directly to the animal. Your veterinarian will decide which preparation to use in each individual case. Treatment must be continued for at least 3 weeks and in any case beyond the visible healing of the skin to prevent recurrence. If severe itching occurs, anti-itching agents may be necessary. Furthermore, the healing process of the skin can be supported with the use of nourishing ointments.

In addition to the medication, the cage or enclosure must be thoroughly cleaned and dried. As the skin fungus can also be transmitted to humans (zoonosis), you should wear gloves when treating the animals and clean and disinfect all utensils thoroughly on a regular basis.

Forecast

The prognosis for a fungal skin infection in chinchillas is favorable if treated in time. If the disease is detected and treated late, or if complications such as secondary infections have already occurred, the prognosis worsens.

Prophylaxis

Due to the widespread occurrence of skin fungus spores, skin fungal diseases cannot be completely prevented. However, the risk of disease can be significantly reduced by taking a few simple measures with regard to the care and feeding of chinchillas. Cages and enclosures should be cleaned daily and disinfected regularly, ensuring that no moisture accumulates in the enclosure.

In addition, chinchillas should always be kept in a homogeneous group in which there is little or no fighting for dominance. If new animals are purchased, they should be kept separate from the old animals for at least 6 months to prevent possible infection. Any form of stress for the animals must be avoided as much as possible. Even frequent handling and lifting (e.g., by children) can cause stress for these sensitive animals.