Table 3. Temporal variation in distribution of Plasmodium species by malaria-endemic region of Thailand, 2006–2009*.
| Species | % Distribution |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Northwestern (Tak) |
Eastern (Chantaburi) |
Southern (Yala) |
Southern (Narathiwat) |
||||||||
| 2006–2007, n = 681 | 2008–2009, n = 1,216 | 2006–2007, n = 261 | 2008–2009, n = 401 | 2006–2007, n = 286 | 2008–2009, n = 1,408 | 2006–2007, n = 370 | 2008–2009, n = 421 | ||||
| P. falciparum | 44.54 | 50.55 | 8.42 | 16.74 | 57.14 | 60.50 | 23.31 | 56.82 | |||
| P. vivax | 52.63 | 48.68 | 91.03 | 81.50 | 41.86 | 38.97 | 76.17 | 41.34 | |||
| P. malariae | 1.16 | 0.21 | 0 | 0.22 | 0 | 0.13 | 0 | 0.41 | |||
| P. ovale | 1.41 | 0.21 | 0.27 | 0 | 0 | 0.07 | 0 | 0.20 | |||
| P. knowlesi | 0.26 | 0.35 | 0.27 | 1.54 | 1.00 | 0.33 | 0.52 | 1.22 | |||
*Data from nested PCR. Temporal variation in distribution in 1996 (n = 210) was 39.26 for Plasmodium falciparum, 57.41 for P. vivax, 2.96 for P. malariae, 0 for P. ovale, and 0.37 for P. knowlesi.