Infectious Diseases

Infectious disease in horses is caused by a specific MICROBIAL agent such as a bacteria, viruses, or parasites. When left untreated, infectious disease can spread rapidly in groups of horses. Use the table below to learn more about a specific infectious diseases including the transmission, clinical signs, treatment, prognosis and prevention.

Equine Herpesvirus (EHV)

Equine herpesvirus (EHV) usually causes a mild respiratory disease which is self-limiting. There are several types of EHV but the predominant forms are EHV-1 and EHV-4. Both EHV-1 and EHV-4 are associated with respiratory disease, abortion and rarely neurologic disease known as equine herpesvirus myeloencephalopathy (EHM).

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Streptococcus equi equi also known as “Strep Equi” or Strangles is highly contagious and is spread by horse-to-horse contact or by humans, tack, drinking troughs and other environmental factors.

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West Nile Virus

West Nile Virus (WNV) is a mosquito-borne virus that affects horses and results in fever and neurologic disease.

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