Volume 23, Number 5—May 2017
Dispatch
Estimated Incubation Period for Zika Virus Disease
Table
Patient characteristic | All cases, no. (%), n = 197* | Confirmed cases, no. (%), n = 79† |
---|---|---|
Age, y | ||
0–19 | 19 (10) | 10 (13) |
20–39 | 71 (36) | 29 (37) |
40–59 | 79 (40) | 32 (40) |
>60 | 27 (14) | 7 (9) |
Unknown |
1 (<1) |
1 (1) |
Sex | ||
M | 77 (39) | 26 (33) |
F | 119 (60) | 52 (66) |
Unknown |
1 (1) |
1 (1) |
Pregnant | ||
Yes | 11 (6) | 2 (3) |
No | 161 (82) | 60 (76) |
Unknown |
25 (13) |
17 (22) |
Travel duration, d | ||
<7 | 24 (12) | 15 (19) |
7–13 | 88 (45) | 64 (81) |
14–20 | 31 (16) | 0 |
21–27 | 12 (6) | 0 |
≥28 | 42 (21) | 0 |
*Persons with Zika virus–like symptoms and positive results for Zika virus RNA by real-time reverse transcription PCR or positive results for Zika or dengue virus IgM and Zika virus plaque reduction neutralization test (PRNT) results >10 and Zika virus titer >4-fold higher than dengue virus titer.
†Persons who traveled <2 weeks, experienced Zika virus–like symptoms, and had positive Zika virus RNA results by real-time reverse transcription PCR or positive Zika or dengue virus IgM results and PRNT >10 and dengue PRNT <10.
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