Lassa fever history and symptoms: Difference between revisions
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==Overview== | ==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. | 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. | ||
==Diagnosis== | |||
The current case definition for suspecting Lassa fever is as follows:<ref name=Prevention>{{cite web | title = The Centers for Disease Control and Prevention | url =http://www.cdc.gov/vhf/abroad/pdf/african-healthcare-setting-vhf.pdf }}</ref> | |||
{| style="border: 2px solid #DCDCDC; font-size: 90%; width: 60%;" align=left | |||
! style="padding: 0 5px; font-size: 120%; background: #4479BA" align=left| ''{{fontcolor|#FFF|Unexplained fever at least 38 °C or 100.4 °F for ≥ 1 week}}'' | |||
|- | |||
! style="padding: 0 5px; font-size: 95%; background: #DCDCDC" align=left | '''And 1 of the following:''' | |||
|- | |||
| rowspan="1" style="font-size: 95%; padding: 0 5px; background: #F5F5F5" | ▸ No response to standard treatment with the choice of regimen for most likely cause of [[fever]] ([[malaria]], [[typhoid fever]]) | |||
|- | |||
| rowspan="1" style="font-size: 95%; padding: 0 5px; background: #F5F5F5" | ▸ Readmitted within 3 weeks of inpatient care for an illness with [[fever]] | |||
|- | |||
! style="padding: 0 5px; font-size: 95%; background: #DCDCDC" align=left | '''And 1 of the following''' | |||
|- | |||
| rowspan="1" style="font-size: 95%; padding: 0 5px; background: #F5F5F5" | ▸ [[Edema]] or [[bleeding]] | |||
|- | |||
| rowspan="1" style="font-size: 95%; padding: 0 5px; background: #F5F5F5" | ▸ [[Sore throat]] and [[retrosternal pain]]/[[vomiting]] | |||
|- | |||
| rowspan="1" style="font-size: 95%; padding: 0 5px; background: #F5F5F5" | ▸ Spontaneous [[abortion]] following [[fever]] | |||
|- | |||
| rowspan="1" style="font-size: 95%; padding: 0 5px; background: #F5F5F5" | ▸ [[Hearing loss]] following [[fever]] | |||
|} | |||
<br><br><br><br><br><br><br><br><br> | |||
==Common Symptoms== | ==Common Symptoms== | ||
Common symptoms of Lassa fever are often non-specific symptoms that resemble symptoms of other viral infections: | Common symptoms of Lassa fever are often non-specific symptoms that resemble symptoms of other viral infections: | ||
* [[Fever]] and [[chills]] (typically persistent high-grade) | * [[Fever]] and [[chills]] (typically persistent, high-grade fever) | ||
* [[Headache]] | * [[Headache]] | ||
* [[Malaise]] | * [[Malaise]] | ||
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<br> | <br> | ||
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|left|800 px|Signs and symptoms Lassa | [[File:Signs and symptoms Lassa.png|thumb|left|800 px|Signs and symptoms of Lassa fever<SMALL><SMALL>''[http://www.cdc.gov/NCIDOD/dvrd/spb/mnpages/lassaslides.htm]''</SMALL></SMALL>]]<br> | ||
<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> | |||
==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. | Less common symptoms of Lassa fever usually develop late and are often associated with a more severe course of disease. | ||
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* [[Seizure]] | * [[Seizure]] | ||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} |
Revision as of 20:07, 9 June 2015
Lassa fever Microchapters |
Diagnosis |
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Treatment |
Case Studies |
Lassa fever history and symptoms On the Web |
American Roentgen Ray Society Images of Lassa fever history and symptoms |
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.
Diagnosis
The current case definition for suspecting Lassa fever is as follows:[1]
Unexplained fever at least 38 °C or 100.4 °F for ≥ 1 week |
---|
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 |
Common Symptoms
Common symptoms of Lassa fever are often non-specific symptoms that resemble symptoms of other viral infections:
- Fever and chills (typically persistent, high-grade fever)
- Headache
- Malaise
- Myalgia
- Arthralgia
- Chest pain (typically retrosternal)
- Dizziness
- Weakness
- Dizziness
- Sore throat
- Back pain
- Cough
- Nausea and Vomiting
- Abdominal pain
- Diarrhea (may be bloody)
- Conjunctival injection and conjunctival hemorrhage
- 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
- Jaundice
HEENT
Gastrointestinal tract
Cardiovascular system
Respiratory tract
Nervous system