Symptoms of Rocky Mountain Spotted Fever

The first symptom of RMSF is a sudden high fever. It often occurs within 1-14 days after a tick bite. Other symptoms may include:

• Nausea
• Vomiting
• Muscle pain
• Lack of appetite
• Severe headache

Later signs may include:

• Rash
• Abdominal pain
• Joint pain
• Diarrhea
• Cough
• Irritability
• Insomnia
• Lethargy
• Confusion
• Delirium or, in severe cases, coma
• Enlarged liver, spleen, and lymph nodes
• In severe cases, low blood pressure or shock

Immune System Including Spleen and Lymph Nodes

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