Lassa fever history and symptoms
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
History and Symptoms
In 80% of cases the disease is inapparent, but in the remaining 20% it takes a complicated course. After an incubation period of six to twenty-one days, an acute illness with multiorgan involvement develops. Non-specific symptoms include fever, facial swelling, and muscle fatigue, as well as conjunctivitis and mucosal bleeding. The other symptoms arising from the affected organs are:
- Gastrointestinal tract
- Nausea
- Vomiting (bloody)
- Diarrhea (bloody)
- Stomach ache
- Constipation
- Dysphagia (difficulty swallowing)
- Hepatitis
- Cardiovascular system
- Pericarditis
- Hypertension
- Hypotension
- Tachycardia (abnormally high heart rate)
- Respiratory tract
- Cough
- Chest pain
- Dyspnoea
- Pharyngitis
- Pleuritis
- Nervous system
- Encephalitis
- Meningitis
- Unilateral or bilateral hearing deficit
- Seizures