Download - P. Ovale - Malaria
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A protozoan which causes
malaria along with Plasmodium
vivax, Plasmodium malariae,
and Plasmodium falciparum.
Its lifecycle is similar with the
other plasmodium.
It is the least among the four
species to cause malaria.
Responsible for benign malaria
and can remain in the body for
years without producing
symptoms
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Infected RBCs Somewhat larger than normal, often with fringed orirregular edge, and oval in shape
Small trophozoite
(early rings)
Small, darker in color, and generally more solid than
those of P. falciparum; Schffnersdots present
Growing trophozoite Resembles closely same stage of P. malariae but is
considerably larger; pigment is lighter and lesscospicuous
Large trophozoite Seldom present
Schizont
(presegmenting)
About 25% of infected cells are oval shaped; usual
picture is that of a round parasaite in the center of an
oval cell; many cells with indefinite fringed outline;pigment lighter and less coarse than in P. malariae
Schizont (mature) Usually 8 merozoites arranged around a central block of
pigment
Gametocyte Distinguished from P. malariae by size of infected cells
and by Schffnersdots
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Fig. 1:Normal red blood
cell;
Figs. 2-5:Developing ring-
form trophozoites.
Figs 6-12: Developing
trophozoites;
Figs 13-15: Maturetrophozoites.
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Figs. 16-22:Developing
schizonts.
Fig. 23: Mature schizont.
Fig. 24: Macrogametocyte
(female);
Fig. 25: Microgametocyte
(male).
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Microgametocyte Macrogametocyte
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a parasitic disease which is spread from person to
person by the bite of an infected Anopheles mosquito.
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Malaria is a disease which affects 109 countries around theworld.
There are between 250 million and 500 million cases ofmalaria each year around the world.
One million people die from malaria each yearmost of them
children. The vast majority of malaria cases around the world occur in
sub-Saharan Africa.
90% of all malaria deaths occur in sub-Saharan Africa.
When insecticide-treated mosquito nets are used properly by
three-quarters of the people in a community, malariatransmission is cut by 50%, child deaths are cut by 20%, andthe mosquito population drops by as much as 90%.
It is estimated that less than 5% of children in sub-SaharanAfrica currently sleep under any type of insecticide-treated net.
http://english.prolasa.org/malaria-prevention/
http://english.prolasa.org/malaria-prevention/http://english.prolasa.org/malaria-prevention/http://english.prolasa.org/malaria-prevention/http://english.prolasa.org/malaria-prevention/ -
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Symptoms show take 8 14 days (P. ovale), but
symptoms may occur after some months
fever
rigors
headaches
sweating
tiredness
myalgia (limbs and back) abdominal pain
vomiting
diarrhea
loss of appetite
orthostatic hypotension
nausea
slight jaundice
cough enlarged liver and spleen
(sometimes not palpable)
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