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Overview

What Is Glanders?

Glanders is a serious bacterial infection caused by Burkholderia mallei. It mainly affects horses and related equids, including donkeys and mules. Rarely, the infection can spread to people who have close contact with an infected animal or its secretions. Because glanders can be severe and can affect animal and public health, suspected cases need prompt professional assessment.

Symptoms

Symptoms of Glanders

Glanders may be acute, chronic, or inapparent, meaning an infected animal or person may have few obvious signs. Symptoms can differ between animals and people. In horses, glanders disease may involve the nose, lungs, skin, or the whole body; human glanders may also cause respiratory or skin symptoms.

  • Fever
  • Nasal discharge (rhinorrhea)
  • Nasal ulcers
  • Enlarged lymph nodes (lymphadenopathy)
  • Cough
  • Breathing difficulty (dyspnea)
  • Skin nodules
  • Skin ulcers
  • Weight loss

Act promptly

Possible exposure matters

Respiratory or skin symptoms after close contact with a potentially infected equid require urgent medical advice. A horse with suspected glanders should be isolated immediately and assessed by a veterinarian.

How It Spreads

How Glanders Spreads

Glanders usually spreads through direct contact with an infected equid or with respiratory and skin secretions. People may become infected when contaminated material reaches the eyes, mouth, lungs, or broken skin. Person-to-person spread is uncommon, but close contact with infectious secretions can pose a risk.

  • Contact with nasal discharge or pus from an infected animal can transfer Burkholderia mallei.
  • Touching contaminated equipment, clothing, bedding, or surfaces may cause exposure.
  • Inhaling infectious droplets may be a risk in close or poorly ventilated settings.
  • The bacterium can enter through broken skin or mucous membranes, including the eyes, nose, or mouth.

Risk Factors

Risk Factors for Glanders

  • Close contact with infected or potentially infected horses, mules, or donkeys
  • Work in veterinary, equine, agricultural, or laboratory settings
  • Contact with nasal, respiratory, or skin secretions from an equid
  • Residence in or travel to an area where glanders occurs
  • Handling equipment, clothing, bedding, or surfaces contaminated by an infected animal

Animal contact, occupation, travel, and contaminated materials are situational exposure factors rather than proof of infection. Some precautions can reduce risk, including appropriate protective equipment, careful hand hygiene, and following animal-isolation procedures. These steps are especially important in settings where glanders in horses or other equids is suspected.

Complications

Complications of Glanders

  • Severe pneumonia
  • Bloodstream infection (sepsis)
  • Abscess formation
  • Chronic respiratory disease
  • Scarring of the skin or nasal passages
  • Death

Serious infection

Prompt assessment is important

Complications are more likely when diagnosis and treatment are delayed or infection becomes widespread. Suspected cases should be managed with appropriate infection-control precautions and professional oversight.

Diagnosis

How Glanders Is Diagnosed

Diagnosis begins with the symptoms and exposure history. Clinicians and veterinarians may ask about contact with horses or other equids, travel, occupation, and possible exposure to infectious secretions. Because glanders disease can resemble other infections, laboratory confirmation and official disease-control protocols are important.

  • A medical or veterinary examination and review of the exposure history help assess the pattern of illness.
  • Bacterial culture from appropriate specimens may identify Burkholderia mallei.
  • Molecular testing, such as polymerase chain reaction (PCR), may be used where available.
  • Serologic or other specialist testing may be considered when appropriate.

Treatment & Management

Treatment and Management of Glanders

People with suspected or confirmed glanders need prompt specialist medical care. Treatment generally involves a prolonged antibiotic plan selected according to susceptibility testing, the site and severity of infection, and specialist guidance. Do not self-treat or delay care while waiting for symptoms to improve.

Veterinary emergency

Do not manage a suspected case alone

Management of an infected or suspected animal may include isolation, testing, movement restrictions, contact tracing, and official control measures. Treatment and the disposition of infected animals are governed by veterinary authorities and local regulations. Owners should avoid handling suspected animals without professional guidance and suitable protective equipment.

Prevention

Preventing Glanders

  • Arrange veterinary assessment for sick or unusual-appearing equids.
  • Isolate suspected animals promptly according to veterinary instructions.
  • Avoid sharing equipment, clothing, bedding, or grooming supplies between animals.
  • Clean and disinfect surfaces and equipment using approved procedures.
  • Wear gloves and eye or respiratory protection when indicated by the risk assessment.
  • Report suspected cases to the appropriate veterinary or public-health authority.

There is no routinely used human vaccine for glanders. Prevention depends on surveillance, biosecurity, safe animal handling, prompt isolation, and compliance with official control programs. These measures help reduce the risk of glanders disease in horses and protect people who work with equids.

Outlook and Prognosis

Outlook and Prognosis for Glanders

Untreated acute or generalized glanders can be fatal. In people, early recognition and appropriate specialist treatment may improve the outcome, but prognosis depends on the form and severity of infection. In equids, the outlook depends on whether disease is acute, chronic, or inapparent, as well as on official veterinary control decisions.

When Should You See a Doctor

When Should You See a Doctor?

Seek medical care

Possible exposure or symptoms

Contact a medical professional urgently after close contact with a suspected or confirmed infected equid, especially if fever, cough, breathing difficulty, nasal discharge, or skin lesions develop.

  • Severe trouble breathing
  • Confusion or a reduced level of alertness
  • Fainting or marked weakness
  • Rapidly worsening illness
  • Signs of a serious skin infection or bloodstream infection

When contacting a clinician, mention the animal contact, your occupation, travel history, timing of exposure, and any protective equipment used. Tell the clinician if the animal was suspected or confirmed to have glanders, even if your symptoms seem mild.

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