Page 652 - The Veterinary Care of the Horse

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Figure 15.4 Thick nasal discharge typical of strangles

First signs may include:
• raised temperature up to 40.5 °C (105 °F)

• watery discharge from one or both nostrils

• dullness and lethargy

• slight enlargement and tenderness of submandibular and retropharyngeal lymph nodes;
the region below the horse’s throat may appear slightly swollen

• a soft, moist cough

• slight increase in respiratory rate
• loss of appetite.

As the disease progresses:
• the nasal discharge becomes thick and yellow