Table 1.
Prevalence of Plasmodium infections in asymptomatic individuals assessed by RDT, microscopy and real-time PCR
| RDT | Microscopy | Real-time PCR | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T1 | T2 | T3 | Total | T1 | T2 | T3 | Total | T1 | T2 | T3 | Total | ||
| Ambohitromby | n | 173 | 79 | 99 | 351 | 173 | 79 | 99 | 351 | 173 | 79 | 99 | 351 |
| Positive | 13 | 10 | 5 | 28 | 9 | 3 | 3 | 15 | 20 | 12 | 10 | 42 | |
| Prevalence (%) | 7.5 | 12.7 | 5.1 | 8.0 | 5.2 | 3.8 | 3.0 | 4.3 | 11.6 | 15.2 | 10.1 | 12.0 | |
| Miarinarivo | n | 122 | 65 | 52 | 239 | 122 | 65 | 49 | 236 | 122 | 65 | 52a | 239 |
| Positive | 9 | 7 | 3 | 19 | 7 | 3 | 3 | 13 | 14 | 12 | 2 | 28 | |
| Prevalence (%) | 7.4 | 10.8 | 5.8 | 7.9 | 5.7 | 4.6 | 6.1 | 5.5 | 11.5 | 18.5 | 3.8 | 11.7 | |
| Prevalence of Plasmodium infections in the two villages | 7.5 | 11.8 | 5.3 | 8.0 | 5.4 | 4.2 | 4.1 | 4.8 | 11.5 | 16.7 | 7.9 | 11.9 | |
a12 blood spots on filter paper have not been properly preserved. The same individuals were involved during the transversal parasitological study including the three methods of malaria diagnostic
Notes: In Ambohitromby, a total of 173, 79 and 99 samples were analysed for T1, T2 and T3 respectively. In Miarinarivo, a total of 122, 65 and 52 samples were analysed for T1, T2 and T3, respectively, except at T3 were only 49 smears were read as 3 slides were unreadable
Abbreviations: n, sample size