Volume 15, Number 5—May 2009
Letter
Chikungunya Outbreak, Singapore, 2008
Yee S. Leo
, Angela L.P. Chow, Li Kiang Tan , David C. Lye, Li Lin, and Lee C. Ng
, Angela L.P. Chow, Li Kiang Tan , David C. Lye, Li Lin, and Lee C. Ng
Table
Daily trend of fever and viremia in 10 hospitalized chikungunya patients, Singapore (www.cdc.gov/EID/content/15/5/836-T.htm)
| Patient no. | Signs and symptoms* | Fever† and chikungunya test results (viral load‡), by day of fever |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| –1 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||
| 1 | F, A, B, D | NA + (442.7) | 37.7§ + (3.5) | 37.0 – | 37.0 – | ||||||||
| 2 | F, A, H, RE | NA + (5,191.4) | 39.6§ + (3,655.2) | 38.4 + (119.1) | 38.0 + (1.3) | 37.6 – | 38.5 | 38.0 | 37.4 | ||||
| 3 | F, A, R, H | NA + (155.5) | 39.3§ + (385.2) | 37.0 + (3.7) | 37.2 + (0.4) | 37.3 – | 37.2 – | ||||||
| 4 | F, A | NA + (0.8) | 40.8§ + (14,605.3) | 39.9 + (14,170.2) | 38.2 + (1,007.8) | 37.6 + (4.0) | 37.6 + (0.2) | 37.4 – | 37.0 | ||||
| 5 | F, A | NA + (371.4) | 37.0§ + (25.9) | 37.8 + (0.4) | 36.8 – | 36.6 – | |||||||
| 6 | F, D, R, M | NA + (524.4) | 37.6§ + (0.7) | 38.6 + (0.4) | 37.2 – | 36.8 – | |||||||
| 7 | F, A, H, EP | NA + (18.8) | 38.3§ + (7.2) | 37.0 + (0.4) | 37.0 – | ||||||||
| 8 | F, A | NA + (36.6) | 37.5§ | 37.6 + (0.3) | 37.7 – | 36.4 | |||||||
| 9 | F, A, N | NA + (406.7) | 38.4§ – | 37.8 | 37.1 | 37.1 | |||||||
| 10 | F, A, M | 39.2§ | 36.7 + (8.5) | 36.8 + (3.6) | 37.1 – | 37.4 – | 36.8 | ||||||
*At hospitalization. F, fever; A, arthralgia; B, backache; D, diarrhea; H, headache; RE, red eyes; R, rash; M, myalgia; EP, eye pain; N, nausea.
†Day 0, day of fever onset. Maximum temperature expressed in ºC. Light shading indicates self-reported fever; dark shading indicates documented fever (maximum temperature >37.5 ºC). NA, not available.
‡Viral load expressed as × 103 pfu/mL. Reverse transcription–PCR test results for chikungunya: +, positive; –, negative.
§Indicates day patient was hospitalized.
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