Volume 17, Number 11—November 2011
Dispatch
Seasonal Influenza A Virus in Feces of Hospitalized Adults
Martin C.W. Chan1, Nelson Lee1
, Paul K.S. Chan, K.F. To, Rity Y.K. Wong, Wing-Shan Ho, Karry L.K. Ngai, and Joseph J.Y. Sung
, Paul K.S. Chan, K.F. To, Rity Y.K. Wong, Wing-Shan Ho, Karry L.K. Ngai, and Joseph J.Y. Sung
Table 2
Fecal detection of seasonal influenza A viral RNA in stool samples, by year of study and virus subtype, Hong Kong, 2006–2009*
| Year of study | No. fecal viral RNA–positive/ no. tested (%) | Fecal viral RNA–positive by virus subtype, no. (%) |
Fecal viral RNA concentration by virus subtype, log10 RNA copies/g stool, median (IQR) |
|||
|---|---|---|---|---|---|---|
| H1 | H3 | H1 | H3 | |||
| 2006 | 11/20 (55) | 7/7 (100) | 2/4 (50) | 5.0 (4.6–6.0) | NA | |
| 2007 | 19/35 (54) | 0/0 | 19/31 (61) | NA | 4.2 (4.0–5.1) | |
| 2008 | 11/26 (42) | 1/5 (20) | 10/21 (48) | NA | 3.9 (3.7–4.4) | |
| 2009 | 15/38 (39) | 5/10 (50) | 10/27 (37) | 3.9 (3.8–4.1) | 3.9 (3.7–4.7) | |
| All | 56/119 (47) | 13/22 (59) | 41/83 (49) | 4.6 (3.9–5.2) | 4.2 (3.8–5.0) | |
*Virus subtyping results were unavailable for 9 cases in 2006, 4 cases in 2007, and 1 case in 2009. IQR, interquartile range; NA, not applicable.
1These authors contributed equally to this article.
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