Malaria causes: Difference between revisions

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{{Malaria}}__NOTOC__
{{About1| Plasmodium}}


{{CMG}}; '''Associate Editor(s)-In-Chief:''' [[User:YazanDaaboul|Yazan Daaboul]], [[User:Sergekorjian|Serge Korjian]], {{AJL}}
#REDIRECT [[Plasmodium]]
 
==Overview==
Malaria is a [[Vector (biology)|vector]]-borne [[infectious disease]] caused by [[protozoan]] parasites. '' [[P. vivax]]'' is the most common cause of infection, responsible for about 80% of all malaria cases. ''P. falciparum'', the most significant cause of disease, is responsible for about 15% of infections and 90% of deaths.<ref>{{cite journal | author = Mendis K, Sina B, Marchesini P, Carter R |title = The neglected burden of Plasmodium vivax malaria. |url=http://www.ajtmh.org/cgi/reprint/64/1_suppl/97.pdf | journal = Am J Trop Med Hyg |volume = 64 | issue = 1-2 Suppl | pages = 97-106 | year = 2001 | pmid = 11425182}}</ref><ref>{{cite journal | author = Mendis K, Sina B, Marchesini P, Carter R | title = The neglected burden of Plasmodium vivax malaria. | url=http://www.ajtmh.org/cgi/reprint/64/1_suppl/97.pdf | journal = Am J Trop Med Hyg | volume = 64 | issue = 1-2 Suppl | pages = 97-106 | year = 2001 | pmid = 11425182}}</ref>
 
==Causes==
'' [[P. vivax]]'' is the most common cause of infection, responsible for about 80% of all malaria cases. ''[[P. falciparum]]'', the most significant cause of disease, is responsible for about 15% of infections and 90% of deaths.<ref>{{cite journal | author = Mendis K, Sina B, Marchesini P, Carter R | title = The neglected burden of Plasmodium vivax malaria. | url=http://www.ajtmh.org/cgi/reprint/64/1_suppl/97.pdf | journal = Am J Trop Med Hyg | volume = 64 | issue = 1-2 Suppl | pages = 97-106 | year = 2001 | pmid = 11425182}}</ref> The remainder of human malaria infections are caused by ''[[P. ovale]]'', ''[[P. malariae]]'', and ''[[P. knowlesi]].''
 
 
The following table distinguishes between the different strains of ''[[Plasmodium]]'' species, all of which are causative agents of malarial infection.
{| style="border: 0px; font-size: 90%; margin: 3px;" align=center
|+'''''Comparison of ''Plasmodium'' Species Implicated in Human Malaria''''' ({{cite web |url=http://www.cdc.gov/dpdx/malaria/dx.html |title= Malaria |date= Nov. 29 2013 |website= Center for Disease Control and Prevention|publisher= Center for Disease Control and Prevention (CDC)|accessdate=Jul 24 2014}})
! style="background: #4479BA; width: 120px;" | {{fontcolor|#FFF|Strain}}
! style="background: #4479BA; width: 550px;" | {{fontcolor|#FFF|Clinical Significance}}
|-
| style="padding: 5px 5px; background: #DCDCDC;" |'''''P. falciparum'''''
| style="padding: 5px 5px; background: #F5F5F5;" | Tertian/subtertian [[fever]] (every 48 hours), causes severe malaria in up to 24% of cases, and is frequently drug resistant.
|-
| style="padding: 5px 5px; background: #DCDCDC;" |'''''P. vivax'''''
| style="padding: 5px 5px; background: #F5F5F5;" |
Tertian fever (every 48 hours), results in severe malaria in up to 22% of cases, and is frequently drug resistant. Relapse is common due to the dormant liver phase.
|-
| style="padding: 5px 5px; background: #DCDCDC;" |'''''P. ovale'''''
| style="padding: 5px 5px; background: #F5F5F5;" |Tertian fever (every 48 hours), rarely causes severe malaria or drug resistance. Relapse is common due to dormant liver phase.
|-
| style="padding: 5px 5px; background: #DCDCDC;" |'''''P. malariae'''''
| style="padding: 5px 5px; background: #F5F5F5;" | Quartan [[fever]] (every 72 hrs), rarely results in severe malaria or drug resistance. Although dormant liver phase is uncommon, infection persistence is frequently demonstrated.
|-
| style="padding: 5px 5px; background: #DCDCDC;" |'''''P. knowlesi'''''
| style="padding: 5px 5px; background: #F5F5F5;" | Daily fevers, may result in severe malaria in up to 10% of cases, although resistance is rare.
|-
|}
 
<sup><center>Adapted from Center for Disease Control and Prevention (CDC) -  Malaria </center></sup>
 
==References==
{{reflist|2}}
[[Category:Apicomplexa]]
[[Category:Insect-borne diseases]]
[[Category:Malaria]]
[[Category:Emergency medicine]]
[[Category:Parasitic diseases]]
[[Category:Tropical disease]]
[[Category:Deaths from malaria]]
[[Category:Infectious disease]]
[[Category:Disease]]
[[Category:Needs content]]
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Latest revision as of 20:23, 3 August 2015

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