Table 2. Summary of samples tested for the detection of H275Y mutation in A(H1N1)pdm09 viruses from 2009 to 2012.
|
% Confidence Intervals
|
|||||||
|---|---|---|---|---|---|---|---|
| Years | Suspected cases sent to NIC-Brazil | A(H1N1)pdm09-confirmed cases | 95 | 90 | 99 | Studied cases for A(H1N1)pdm09-carrying H275Y | A(H1N1)pdm09-carrying H275Y |
| 2009 | 16936 | 5655 | 360 | 259 | 594 | 315* | 1 |
| 2010 | 1789 | 140 | 103 | 93 | 116 | 100* | 0 |
| 2011 | 1431 | 163 | 114 | 102 | 130 | 163 | 0 |
| 2012 | 2016 | 345 | 183 | 152 | 228 | 335 | 4 |
| Total | 22172 | 6303 | 760 | 606 | 1068 | 913 | 5 |
*
The numbers represent the sum of the cases presented in this study and in our previous publication [7].