Table 2 Summary Plasmodium species of human blood collected Laos and Vietnam by PCR analysis
From: Human infection with Plasmodium knowlesi on the Laos-Vietnam border
| Â | Laos | Vietnam | |
|---|---|---|---|
Microscopy (+) | Microscopy (−) | Microscopy (+) | |
No. of examined by PCR | 35 | 75 | 25 |
No. of Plasmodium spp. positive by PCR | 35 | 30 | 25 |
Detected Plasmodium species by PCR | |||
 P. falciparum | 21 | 12 | 16 |
 P. vivax | 0 | 9 | 2 |
 P. falciparum + P. vivax | 5 | 6 | 4 |
 P. falciparum + P. malariae | 2 | 0 | 0 |
 P. vivax + P. knowlesi | 1 | 1 | 3 |
 P. falciparum + P. vivax + P. malariae | 1 | 0 | 0 |
 P. falciparum + P. vivax + P. knowlesi | 5 | 2 | 0 |
No. of PCR positive by age group | |||
 ≤ 5 years | 10 | 8 | 4 |
 6–14 years | 14 | 9 | 5 |
 ≥ 15 years | 11 | 13 | 16 |
No. of PCR positive by gender | |||
 Male | 16 | 10 | 14 |
 Female | 19 | 20 | 11 |