Strangles Outbreak in West Virginia: What Horse Owners Need to Know

A case of strangles has been confirmed in Jefferson County, West Virginia, prompting concerns among horse owners in the region. As of January 15, 2026, one horse at a private facility has tested positive for the highly contagious respiratory disease, with ten additional horses potentially exposed. This outbreak underscores the importance of vigilance, biosecurity measures, and understanding the signs and symptoms of strangles.

What is Strangles?

Strangles, also known as equine distemper, is a highly contagious bacterial infection caused by Streptococcus equi subspecies equi. Despite its name, strangles does not cause choking, though swollen lymph nodes in the throat can make breathing and swallowing arduous. It primarily affects horses, but can also infect donkeys and mules. The disease is most common in young horses (under five years old) and those that haven’t been previously exposed or vaccinated.

How is Strangles Spread?

Strangles is spread through direct contact with infected horses, or indirectly through contaminated surfaces, equipment, and people. The bacteria can survive for several weeks in the environment, making it a persistent threat. common routes of transmission include:

• Direct Contact: Nose-to-nose contact with an infected horse.
• Indirect Contact: Sharing water troughs, feed buckets, grooming equipment, or handling horses without proper disinfection.
• Fomites: Contaminated hands,clothing,and other objects can carry the bacteria.
• Aerosol Transmission: While less common, the bacteria can be spread through the air via coughing or sneezing.

Recognizing the Symptoms

The incubation period for strangles is typically 3-14 days. Symptoms can vary in severity, ranging from mild fever and nasal discharge to severe abscessation and breathing difficulties. Key signs to watch for include:

• Fever: Often the first sign, reaching 102-106°F (38.9-41.1°C).
• nasal Discharge: Initially serous (clear),becoming thick and purulent (pus-like) as the infection progresses.
• Swollen lymph Nodes: Especially those under the jaw (submandibular) and throat (retropharyngeal). These nodes may become large, painful, and eventually rupture, forming abscesses.
• Difficulty Breathing: Swelling in the throat can obstruct airflow.
• Loss of Appetite: Due to fever and discomfort.
• Lethargy: General weakness and decreased energy levels.

It’s meaningful to note that not all horses will exhibit all symptoms, and the severity can vary significantly. Some horses may carry the bacteria asymptomatically, acting as carriers and spreading the infection without showing obvious signs of illness. VCA Hospitals provides a thorough overview of strangles symptoms.

Diagnosis and treatment

Diagnosis of strangles typically involves a physical examination, assessment of clinical signs, and laboratory testing. A veterinarian can perform:

• Culture: A swab of the nasal discharge or an abscess sample can be cultured to confirm the presence of Streptococcus equi.
• PCR Testing: Polymerase chain reaction (PCR) tests can detect the bacteria’s DNA, providing a rapid and accurate diagnosis.
• Blood Tests: To assess the horse’s overall health and monitor the immune response.

Treatment for strangles focuses on supportive care, as antibiotics are generally not recommended for uncomplicated cases due to the risk of promoting carrier status. Supportive care may include:

• Rest: Allowing the horse to recover without strenuous activity.
• Fever Reduction: Administering anti-inflammatory medications as prescribed by a veterinarian.
• Abscess drainage: Carefully lancing and draining abscesses to relieve pressure and promote healing.*This should only be performed by a qualified veterinarian.*
• hydration: Ensuring the horse drinks enough water.
• Soft Diet: Providing easily digestible food.

In severe cases, hospitalization and intensive care may be necessary. Equinedisease.com offers detailed information on strangles treatment protocols.

Prevention and Biosecurity

Preventing the spread of strangles requires strict biosecurity measures. Horse owners should:

• Quarantine: Isolate any new horses for 2-3 weeks before introducing them to the existing herd.
• Vaccination: While not a foolproof solution, vaccination can reduce the severity of the disease and potentially limit shedding of the bacteria. Consult with your veterinarian about the appropriate vaccination schedule.
• Disinfection: Regularly disinfect equipment, water troughs, and stalls. Use a disinfectant effective against Streptococcus equi.
• Hygiene: Practice good hygiene, including washing hands thoroughly after handling horses and before and after handling equipment.
• Monitor Horses: Regularly check horses for signs of illness.
• Limit Contact: Avoid unnecessary contact between horses at different facilities.

The West Virginia Situation

The West Virginia Department of Agriculture is monitoring the situation in Jefferson County and working with local veterinarians to contain the outbreak. Horse owners in the area are urged to be vigilant and report any suspected cases of strangles to thier veterinarian instantly. Prompt reporting and implementation of biosecurity measures are crucial to preventing further spread of the disease.

Key Takeaways

• Strangles is a highly contagious bacterial infection affecting horses.
• Early detection and isolation are critical to controlling outbreaks.
• Biosecurity measures are essential for preventing the spread of the disease.
• Vaccination can definitely help reduce the severity of strangles.
• Consult with a veterinarian for diagnosis,treatment,and prevention strategies.

FAQ

Q: Can humans get strangles?
A: No, strangles does not affect humans. It is indeed specific to equines.

Q: How long are horses contagious with strangles?
A: Horses can remain contagious for several weeks, even after they appear to have recovered. some horses become carriers and can shed the bacteria intermittently for months or even years.

Q: Is strangles always fatal?
A: No, strangles is rarely fatal with appropriate care. However,complications such as airway obstruction or pneumonia can be life-threatening.