Table 2. Clinical and parasitological parameters (measured by microscopy and qPCR) in Huong Hoa, Krong Pa and Thuan Bac districts.
| Parameters | Huong Hoa (n = 84) | Krong Pa (n = 29) |
Thuan Bac (n = 20) |
|---|---|---|---|
| Frequency of positivity on day 3 measured by microscopy and qPCR | 27.2% 39.3%(*) |
68.1% 86.2%(1,*) |
32.5% 40.0%(*) |
| Frequency of positivity on day 28 measured by microscopy and qPCR | 0.0% 0.0%(*) |
8.0% 17.2%(2,*) |
12.6% 20.0%(2,*) |
| Frequency of K13 (C580Y) | 1.2% | 75.8%(1) | 15.0% |
| Frequency of PfPM2 multi-copies | 1.2% | 0.0% | 0.0% |
| Mean parasitemia (parasites/μl) on day 0 by microscopy and qPCR | 25423 33839(*) |
59223 73801(*) |
33665 45997(*) |
| Mean parasitemia (parasites/μl) in positive patients on day 3 by qPCR | 100 | 165 | 81 |
| Mean parasitemia (parasites/μl) in positive patients on day 28 by qPCR | — | 18 | 14 |
| Frequency of malaria recrudescence on day 60 | 0.0% | 0.0% | 0.0% |
| Percent decrease of the number of malaria cases in the last years | 95.0% (from 2012) |
97.0% (from 2012) |
87.0% (from 2014) |
| Frequency of asymptomatic carriers | 1.2% | 1.0% | — |
n: number of studied patients.
(1) The value is significantly different (p < 0.05) in comparison to the two other values belonging to the same category.
(2) The value is significantly different (p < 0.05) in comparison to the lowest value belonging to the same category. The frequency of malaria recrudescence was retrospectively assessed in malaria patients admitted in the three districts from 2014 to 2016.
(*) Frequency of positivity on days 3 and 28 measured by qPCR.