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Table 4. The infectivity of Plasmodium falciparum to mosquito groups provided distilled water and 10% glucose. The parameters used to monitor infectivity are oocyst infection rates and oocyst intensity. The infection experiments are listed as per the gametocyte carriers used in the study.
Gametocytes
Oocyst infection rate
Oocyst intensity
carrier
density
Macros†
no sugar
sugar
no sugar
sugar
1
80
79.2
0 (0/21)
0 (0/6)
0
0
2
2720
2692.8
0 (0/13)
0 (0/20)
0
0
3
16
15.84
0 (0/42)
0 (0/27)
0
0
4
96
95.04
0 (1/11)
5.9 (1/17)
1
1
5
16
15.84
0 (0/47)
0 (0/39)
0
0
6
16
15.84
0 (0/45)
0 (0/42)
0
0
7
16
15.84
0 (0/36)
0 (0/23)
0
0
8
32
31.68
0 (0/13)
0 (0/23)
0
0
9
48
47.52
4.9 (2/41)
0 (0/42)
1
0
10
96
95.04
0 (0/27)
0 (0/22)
0
0
11
144
142.56
27.0 (10/37)
38.9 (7/18)
2.2
11.2
12
496
491.04
6.3 (1/16)
8.3 (2/24)
1
1
13
32
31.68
0 (0/35)
0 (0/69)
0
0
14
80
79.2
3.3 (1/30)
5.4 (2/37)
1
1
15
48
47.52
0 (0/15)
0 (0/33)
0
0
16
32
31.68
0 (0/36)
0 (0/36)
0
0
17
64
63.36
5.9 (1/17)
0 (0/6)
1
0
18
48
47.52
0 (0/21)
0 (0/24)
0
0
19
16
15.84
2.4 (1/42)
0 (0/45)
1
0
20
16
15.84
0 (0/43)
2.6 (1/39)
0
1
 
*2.9 (17/588)
*2.2 (13/592)
1.2 ± 0.2
3.03 ± 2.02
†The mean macrogametocyte (=macros) density ingested by the mosquitoes was estimated by multiplying the mean blood meal volume of membrane fed mosquitoes by the mean number of macrogametocytes per ml of blood as described by Okech et al. (2004).
*Represents the overall oocyst infection rates computed by the total number of positive mosquitoes divided by the total number of mosquitoes dissected.
The average of the mean oocyst count on infected mosquito midguts ± standard error of the mean (SEM).
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