Learn about the comparison between Plasmodium Viax and Plasmodium Falciparum.
Comparison # Plasmodium Vivax:
1. Period of incubation in Plasmodium Vivax : 10-17 days
2. Period of schizogony : 48 hours
3. Trophozoite (Ring form): Size – 3 µm
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Cytoplasm opposite the chromatin dot is thicker. Growing forms very irregular with a vacuole. Actively amoeboid
4. Mature schizont: Larger than a red blood cell
5. Number of merozoites: 12-24. Arranged irregularly in a grape-like cluster
6. Haemozoin pigments: Yellowish brown. Present in fine granules throughout the cytoplasm
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7. Infected red blood cell: Enlarged and pale. Schuffner’s dots present which are small regular and numerous
8. Shape of gametocyte: Spherical or globular
9. Forms found in peripheral blood: Trophozoites, schizonts and gametocytes
10. Type of malaria fever and its effect: Benign tertian. Death rate low
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11. Relapses : Up to 3 years
12. Development in mosquito: 10 days at 25° to 30°C.
Comparison # Plasmodium Falciparum:
1. 8-12 days
2. 24-48 hours
3. Size smaller -1.25-1.5 µm
4. Cytoplasm fine and regular in outline. Often with 2 chromatin dots. The forms are applique or accole. Multiple infection of red blood cells
5. Smaller than a red blood cell 8-24 or even more. Arranged in a grape-like cluster
6. Dark brown. Present in one solid block around the nucleus
7. Usually unaltered. Maurer’s dots present which are large, irregular and fewer
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8. Crescentic
9. Trophozoites and gametocytes. Schizonts are rarely seen
10. Malignant tertian & sub-tertian Death rate high
11. 6 months to 1 year 1
12. 0 to 12 days at 27°C.