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Lassa fever after an [[incubation period]] of six to twenty-one days, manifest as an acute illness with multiorgan involvement and patients present with [[gastrointestinal]], neurological and [[pulmonary]] symptoms. | Lassa fever after an [[incubation period]] of six to twenty-one days, manifest as an acute illness with multiorgan involvement and patients present with [[gastrointestinal]], neurological and [[pulmonary]] symptoms. | ||
== | ==Common Symptoms== | ||
Common symptoms of Lassa fever are often non-specific symptoms that resemble symptoms of other viral infections: | |||
* [[Fever]] | |||
* [[Headache]] | |||
* [[Malaise]] | |||
* [[Muscle pain]] | |||
* [[Chest pain]] | |||
* [[Weakness]] | |||
* [[Dizziness]] | |||
* [[Sore throat]] | |||
* [[Back pain]] | |||
* [[Cough]] | |||
* [[Nausea]] and [[Vomiting]] | |||
* [[Abdominal pain]] | |||
* [[Diarrhea]] (may be bloody) | |||
* [[Mucosal bleeding]] | |||
* [[Hearing loss]] | |||
*The following graph demonstrates the common and rare symptoms associated with Lassa fever: | *The following graph demonstrates the common and rare symptoms associated with Lassa fever: | ||
[[File:Signs and symptoms Lassa.png|thumb|center|800 px|Signs and symptoms Lassa Fever<SMALL><SMALL>''[http://www.cdc.gov/NCIDOD/dvrd/spb/mnpages/lassaslides.htm]''</SMALL></SMALL>]] | |||
[[File:Signs and symptoms Lassa.png|thumb|center|800 px| | |||
==Less Common Symptoms== | ==Less Common Symptoms== | ||
Less common symptoms of Lassa fever usually develop late and are often associated with a more severe course of disease. | |||
===[[Skin]]=== | ===[[Skin]]=== | ||
*Jaundic | *Jaundic | ||
| Line 41: | Line 35: | ||
*[[Sore throat]] | *[[Sore throat]] | ||
*[[Facial edema]] | *[[Facial edema]] | ||
*[[Neck swelling]] | |||
===Gastrointestinal tract=== | ===Gastrointestinal tract=== | ||
*[[Hematemesis]] | *[[Hematemesis]] | ||
*[[Constipation]] | *[[Constipation]] | ||
*[[Dysphagia]] | *[[Dysphagia]] | ||
===Cardiovascular system=== | ===Cardiovascular system=== | ||
*[[Hypotension]] or [[shock]] | *[[Hypotension]] or [[shock]] | ||
*[[Palpitations]] | *[[Palpitations]] | ||
===Respiratory tract=== | ===Respiratory tract=== | ||
Revision as of 19:58, 9 June 2015
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Lassa fever Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Lassa fever history and symptoms On the Web |
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American Roentgen Ray Society Images of Lassa fever history and symptoms |
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Risk calculators and risk factors for Lassa fever history and symptoms |
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, manifest as an acute illness with multiorgan involvement and patients present with gastrointestinal, neurological and pulmonary symptoms.
Common Symptoms
Common symptoms of Lassa fever are often non-specific symptoms that resemble symptoms of other viral infections:
- Fever
- Headache
- Malaise
- Muscle pain
- Chest pain
- Weakness
- Dizziness
- Sore throat
- Back pain
- Cough
- Nausea and Vomiting
- Abdominal pain
- Diarrhea (may be bloody)
- Mucosal bleeding
- Hearing loss
- The following graph demonstrates the common and rare symptoms associated with Lassa fever:
Less Common Symptoms
Less common symptoms of Lassa fever usually develop late and are often associated with a more severe course of disease.
Skin
- Jaundic
HEENT
Gastrointestinal tract
Cardiovascular system
Respiratory tract
Nervous system
Diagnosis
The current case definition for suspecting Lassa fever is as follows:[1]
| Unexplained fever at least 38oC or 100.4oF for one week or more |
|---|
| And 1 of the following: |
| ▸ No response to standard treatment with the choice of regimen for most likely cause of fever (malaria, typhoid fever). |
| ▸ Readmitted within 3 weeks of inpatient care for an illness with fever. |
| And 1 of the following |
| ▸ Edema or bleeding. |
| ▸ Sore throat and retrosternal pain/vomiting. |
| ▸ Spontaneous abortion following fever. |
| ▸ Hearing loss following fever. |