Point of discrimination | Plasmodium species | |||||
---|---|---|---|---|---|---|
P. falciparum | P. vivax | P. malariae | ||||
n | % | n | % | n | % | |
Size of infected red blood cells | ||||||
Do not know | 3 | 2.4 | 3 | 2.4 | 3 | 2.4 |
Small | 49 | 38.6 | 5 | 3.9 | 44 | 34.6 |
Normal | 74 | 58.3 | 4 | 3.1 | 74 | 58.3 |
Big | 1 | 0.8 | 114 | 89.8 | 6 | 4.7 |
Spots inside infected red blood cells | ||||||
Do not know | 5 | 3.9 | 4 | 3.1 | 14 | 11 |
Maurer’s dots | 104 | 81.9 | 22 | 17.3 | 39 | 30.7 |
Schuffner’s dots | 16 | 12.6 | 98 | 77.2 | 20 | 15.7 |
Ziemann’s dots | 2 | 1.6 | 3 | 2.4 | 53 | 41.7 |
Several parasites inside the same red blood cell | ||||||
Do not know | 5 | 3.9 | 10 | 7.9 | 11 | 8.7 |
Always | 72 | 56.7 | 40 | 31.5 | 48 | 37.8 |
Sometimes | 47 | 37 | 55 | 43.3 | 49 | 38.6 |
Never | 3 | 2.4 | 21 | 16.5 | 18 | 14.2 |
Parasite stages in the red blood sample | ||||||
Do not know | 8 | 6.3 | 7 | 5.5 | 20 | 15.7 |
Only the ring form | 59 | 46.5 | 32 | 25.2 | 59 | 46.5 |
All stages | 60 | 47.2 | 87 | 68.5 | 44 | 34.6 |
Big ring structures | ||||||
Do not know | 8 | 6.3 | 7 | 5.5 | 9 | 7.1 |
Always | 94 | 74 | 88 | 69.3 | 54 | 42.5 |
Never | 25 | 19.7 | 32 | 25.2 | 62 | 48.8 |
Chromatin dots | ||||||
Do not know | 9 | 7.1 | 9 | 7.1 | 13 | 10.2 |
Singular number | 69 | 54.3 | 82 | 64.6 | 82 | 64.6 |
Plural number | 49 | 38.6 | 35 | 27.6 | 30 | 23.6 |
Band structures | ||||||
Do not know | 2 | 1.6 | 5 | 3.9 | 6 | 4.7 |
Always | 48 | 37.8 | 34 | 26.8 | 107 | 84.3 |
Never | 77 | 60.6 | 88 | 69.3 | 14 | 11 |
Gametocytes in crescent form | ||||||
Do not know | 2 | 1.6 | 5 | 3.9 | 9 | 7.1 |
Always | 118 | 92.9 | 9 | 7.1 | 19 | 15.0 |
Never | 7 | 5.5 | 113 | 89 | 99 | 78 |