Table 1 Clinical aspects, infectivity mosquitoes and prevalence of asexual and sexual stages detected by microscopy and/or molecular biology tools in samples from symptomatic and asymptomatic malaria vivax patients
Symptomatic (n = 42) | Asymptomatic (n = 25) | |
|---|---|---|
Male, n (%) | 31 (74) | 14 (56) |
Age group (%) | ||
< 25 | 12 | 24 |
25–34 | 24 | 28 |
> 34 | 64 | 48 |
Mean | 39 | 34.7 |
Malaria previous episodes (%) | 88 | 84 |
Mean of malaria episodes | 4 | 9 |
Symptoms (%) | ||
Fever | 93 | 0 |
Headache | 31 | 12 |
Chills | 52 | 0 |
No. of dissected guts, mean ± SD (range) | 27.6 ± 13.3 (11–85) | 28.5 ± 13.1 (7–60) |
Oocyst intensity, mean ± SD (range) | 7.8 ± 18.1 (0–70) | 2.1 ± 7.3 (0–35) |
Parasite density by microscopy (parasites/μl), mean ± SD (range) | ||
Assexual forms, mean ± SD (range) | 2454 ± 3148 (165–13,524) | 249 ± 724 (0–3128) |
Gametocytes, mean ± SD (range) | 152 ± 130 (8–577) | 13 ± 33 (0–151) |
PCR parasite density (copies/μl) | ||
18S rDNA, mean ± SD (range) | 14,134 ± 75,180 (1446–478,640) | 2446 ± 5495 (0.7–20,627) |
Pvs25, mean ± SD (range) | 8937 ± 31,745 (505–175,571) | 2711 ± 3444 (1–10,858) |