Table 1.
Plasma viremia according to infection status and serotype
| Serotype | Number of patients | Number of feeding events* | Total no. of mosquitoes | Median of mosquitoes (IQR) per feeding | Number (%) of feedings with 0% infected | Number (%) of feedings with 100% infected | Plasma viremia (median, IQR) log 10-copies/mL | ||
|---|---|---|---|---|---|---|---|---|---|
| All (n = 204 feeds) | 0% Infected (N = 88 feeds) | 100% Infected (N = 116 feeds) | |||||||
| None | 18 | 20 | 472 | 25 (22–30) | 20 (100) | 0 (0) | < LOD† | N/A | N/A |
| DENV-1 | 58 | 82 | 1,727 | 21 (17–27) | 20 (24.3) | 62 (75.6) | 8.3 (6.9–9.1) | 5.2 (4.1–5.8) | 8.7 (7.9–9.2) |
| DENV-2 | 54 | 78 | 1,645 | 21 (17–25) | 33 (42.3) | 45 (57.6) | 7.0 (5.0–8.2) | 4.8 (4.4–5.3) | 8.2 (7.2–8.6) |
| DENV-3 | 10 | 14 | 254 | 19 (12–22) | 7 (50.0) | 7 (50.0) | 7.8 (6.5–8.9) | 5.0 (4.9–7.7) | 8.9 (8.7–9.4) |
| DENV-4 | 10 | 10 | 223 | 24.5 (16–27) | 8 (80.0) | 2 (20.0) | 5.9 (5.7–7.6) | 5.9 (5.7–7.3) | 7.6 (7.6–8.3) |
| All | 150 | 204 | 4,321 | 24 (19–28) | 88 (43.14) | 116 (56.86) | 7.7 (5.7–8.7) | 5.2 (4.4–5.9) | 8.5 (7.8–9.0) |
*
Data from feedings with < 5 mosquitoes, and those from infection rates > 0% and < 100% were excluded.
†< LOD = below limit of detection of reverse transcription-polymerase chain reaction (RT-PCR) assay.
DENV = dengue virus; IQR = interquartile range.