Volume 10, Number 2—February 2004
THEME ISSUE
2004 SARS Edition
Laboratory Study
Detection of SARS Coronavirus in Patients with Suspected SARS
Kwok H. Chan*, Leo L.L.M. Poon†, V.C.C. Cheng*, Yi Guan†, I.F.N. Hung*, Joseph S.M. Peiris‡
, Loretta Y.C. Yam§, Wing H. Seto*, Kwok Y. Yuen†, and Joseph S. Malik Peiris†
, Loretta Y.C. Yam§, Wing H. Seto*, Kwok Y. Yuen†, and Joseph S. Malik Peiris†
Table 3
SARS coronavirus RNA detection in saliva, endotracheal aspirates, and sputum at different times after onset of illness in patients with serologically confirmed SARS-CoV infectiona
| D after onset | Positive saliva samples/total (%) | Positive endotracheal aspirate/total (5) | Positive sputum/total |
|---|---|---|---|
| 0–4 | ND | ND | 3/6 |
| 5–10 | 1/6 (17.0) | 1/2 | 3/3 |
| 11–20 | 6/45 (13.3) | 2/3 | 1/1 |
| 21–30 | 2/96 (2.1) | 13/19 (68.4) | ND |
| 31–40 | 3/58 (5.2) | 1/1 | ND |
| 41–50 | 1/29 (3.4) | ND | ND |
| >50 | 0/40 (0.0) | 0/1 | 0/1 |
aSARS, severe acute respiratory syndrome; SARS-CoV, severe acute respiratory syndrome coronavirus; ND, not done.
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