Volume 11, Number 11—November 2005
Dispatch
Respiratory Infections during SARS Outbreak, Hong Kong, 2003
Table
Virus | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Influenza | |||||||||||||
No. isolates | 327 | 419 | 786 | 105 | 22 | 58 | 96 | 54 | 121 | 50 | 10 | 35 | |
No. tests performed | 1,166 | 1,530 | 5,432 | 3,758 | 1,495 | 974 | 776 | 665 | 1,283 | 1,193 | 1,008 | 1,407 | |
PPS (03) | 0.28 | 0.27 | 0.14 | 0.03 | 0.01 | 0.06 | 0.12 | 0.08 | 0.09 | 0.04 | 0.01 | 0.02 | |
Average PPS (98–02) | 0.235 | 0.368 | 0.329 | 0.154 | 0.127 | 0.143 | 0.186 | 0.153 | 0.063 | 0.022 | 0.019 | 0.044 | |
Range of PPS (98–02) | 0.067–0.321 | 0.143–0.519 | 0.121–0.517 | 0.065–0.203 | 0.043–0.194 | 0.072–0.216 | 0.145–0.232 | 0.123–0.173 | 0.040–0.105 | 0.009–0.044 | 0.008–0.030 | 0.022–0.110 | |
% change† |
+19 |
–26 |
–56 |
–82 |
–88 |
–58 |
–33 |
–47 |
+49 |
+87 |
–49 |
–44 |
|
Parainfluenza | |||||||||||||
No. isolates | 29 | 35 | 75 | 12 | 2 | 1 | 11 | 26 | 29 | 68 | 75 | 112 | |
No. tests performed | 1,166 | 1,530 | 5,432 | 3,758 | 1,495 | 974 | 776 | 665 | 1,283 | 1,193 | 1,008 | 1,407 | |
PPS (03) | 0.02 | 0.02 | 0.01 | 0.00 | 0.00 | 0.00 | 0.01 | 0.04 | 0.02 | 0.06 | 0.07 | 0.08 | |
Average PPS (98–02) | 0.035 | 0.025 | 0.022 | 0.036 | 0.037 | 0.034 | 0.023 | 0.017 | 0.027 | 0.061 | 0.081 | 0.065 | |
Range of PPS (98–02) | 0.014–0.106 | 0.014–0.053 | 0.008–0.046 | 0.021–0.046 | 0.024–0.054 | 0.026–0.046 | 0.017–0.034 | 0.010–0.028 | 0.014–0.043 | 0.025–0.102 | 0.031–0.149 | 0.035–0.156 | |
% change† |
–28 |
–8 |
–38 |
–91 |
–96 |
–97 |
–38 |
+135 |
–16 |
–7 |
–9 |
+22 |
|
RSV | |||||||||||||
No. isolates | 49 | 53 | 66 | 24 | 6 | 3 | 8 | 53 | 181 | 48 | 12 | 5 | |
No. tests performed | 1,166 | 1,530 | 5,432 | 3,758 | 1,495 | 974 | 776 | 665 | 1,283 | 1,193 | 1,008 | 1,407 | |
PPS (03) | 0.04 | 0.03 | 0.01 | 0.01 | 0.00 | 0.00 | 0.01 | 0.08 | 0.14 | 0.04 | 0.01 | 0.00 | |
Average PPS (98–02) | 0.014 | 0.021 | 0.055 | 0.104 | 0.081 | 0.066 | 0.072 | 0.094 | 0.092 | 0.036 | 0.022 | 0.032 | |
Range of PPS (98–02) | 0.003–0.054 | 0.010–0.065 | 0.037–0.090 | 0.055–0.155 | 0.049–0.112 | 0.042–0.098 | 0.038–0.113 | 0.046–0.126 | 0.057–0.118 | 0.018–0.051 | 0.001–0.060 | 0.001–0.072 | |
% change† |
+203 |
+64 |
–78 |
–94 |
–95 |
–95 |
–86 |
–15 |
+54 |
+13 |
–47 |
–89 |
|
Adenovirus | |||||||||||||
No. isolates | 61 | 78 | 84 | 41 | 5 | 0 | 1 | 2 | 4 | 7 | 8 | 17 | |
No. tests performed | 1,166 | 1,530 | 5,432 | 3758 | 1,495 | 974 | 776 | 665 | 1,283 | 1,193 | 1,008 | 1,407 | |
PPS (03) | 0.05 | 0.05 | 0.02 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.01 | 0.01 | |
Average PPS (98–02) | 0.034 | 0.030 | 0.035 | 0.056 | 0.055 | 0.058 | 0.068 | 0.044 | 0.038 | 0.049 | 0.052 | 0.074 | |
Range of PPS (98–02) | 0.012–0.058 | 0.019–0.052 | 0.017–0.071 | 0.012–0.121 | 0.022–0.110 | 0.028–0.105 | 0.032–0.091 | 0.029–0.058 | 0.026–0.054 | 0.045–0.055 | 0.042–0.062 | 0.058–0.093 | |
% change† |
+52 |
+72 |
–55 |
–81 |
–94 |
–100 |
–98 |
–93 |
–92 |
–88 |
–85 |
–84 |
|
Hepatitis B | |||||||||||||
No. of positive test results | 16 | 11 | 13 | 18 | 20 | 13 | 19 | 20 | 22 | 21 | 15 | 20 | |
No. of tests performed | 143 | 98 | 135 | 99 | 97 | 118 | 139 | 135 | 120 | 111 | 102 | 131 | |
PPS (03) | 0.112 | 0.112 | 0.096 | 0.182 | 0.206 | 0.110 | 0.137 | 0.148 | 0.183 | 0.189 | 0.147 | 0.153 | |
Average PPS (98–02) | 0.147 | 0.132 | 0.127 | 0.129 | 0.125 | 0.156 | 0.154 | 0.156 | 0.168 | 0.144 | 0.167 | 0.148 | |
Range of PPS (98–02) | 0.083–0.228 | 0.079–0.190 | 0.093–0.153 | 0.070–0.168 | 0.085–0.162 | 0.096–0.188 | 0.104–0.186 | 0.068–0.228 | 0.086–0.250 | 0.081–0.233 | 0.099–0.249 | 0.082–0.197 | |
% change† | –24 | –15 | –24 | +41 | +65 | –29 | –11 | –5 | +9 | +32 | –12 | +3 |
*RSV, respiratory syncytial virus.
†Percentage change of PPS in 2003 with respect to the average PPS from 1998 to 2002.
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