Lassa fever history and symptoms
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [2]; Ammu Susheela, M.D. [3]
Synonyms and keywords: Lassa hemorrhagic fever; LHF
Overview
Lassa fever after an incubation period of six to twenty-one days, an acute illness with multiorgan involvement develops gastrointestinal, neurological and pulmonary symptoms.
History
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.[1]
Common Symptoms
- Because the symptoms of Lassa fever are so varied and nonspecific, clinical diagnosis is often difficult.
- Non-specific symptoms include the following.
- Fever-Almost 100%
- Headache- 85%
- Muscle fatigue
- retrosternal pain (pain behind the chest wall)
- Sore throat
- Back pain
- Cough
- Abdominal pain
- Vomiting
- Diarrhea
- Mucosal bleeding.
Less Common Symptoms
The other symptoms arising from the affected organs are:
- Gastrointestinal tract
- Cardiovascular system
- Respiratory tract
- Nervous system
- Headache
- Tremor
- Unilateral or bilateral hearing loss
- Seizures