Material Day 2

Malaria Day theme.

“Invest in the Future: Defeat Malaria”

World Malaria Day Theme 2013 – 2015

World Malaria Day (April 25)

MALARIA types - 4

 

1. P.Vivax

2. P. falciparum

3. P. malariae

4. P. ovale

 

P.vivax and P. ovale               -           8 to 10 days

P. falciparum                           -           10 to 12 days

P. malariae                               -           15 to 20 days                                                                                                             

MICROSCOPIC DIFFERENTION OF MALARIA PARASITE SPECIES

	P. vivax	P. falciparum	P. malariae	P. ovale
1. Red Blood Cell
a)   Size	Enlarged	Normal or small	Normal	Enlarged
b)   Shape	Round	Round	Round	Ovalor crenated
c)    Co lour	Pale	Normal	Normal	Pale
2. Parasite
a)   Stages in peripheral Blood	All stages	Rings and gameto- Cytes	All stages	All stages
b)   No. of parasites in RBC	Usually single sometimes more	Usually single times multiple	Single	Single
c)   Chromatin in ring stage	Big, single Rarely double	Small, sometimes Double	Big, single	Big, single
d)   Ring size in relation to RBC           diameter and character	1/3 coarse	1/5 fine hair like	1/3 coarse	1/3 coarse
e)  Cytoplasm	Ring shaped or amoeboid	Ring shaped	Ring shaped	Ring shaped or amoeboid
f)   Stippling on infected RBC	Fine, numerous Schuffner’s Dots	Big, a few Maurer’s dots	Nil	Fines
g)   Pigment	Coarse Aggregated	-	Coarse centrally located	Coarse aggregated
h)     Gametocytes	Round	Crescent shaped	Round	Round
i)                    Number of merozoites in        a     schizont	12 – 24	6 – 12	6 – 12
j) Other forms of rings	Very rarely	Accole, swallow and other forms	Band form