07-25-2009, 12:16 AM
From the CDC website:
Why has CDC stopped reporting confirmed and probable novel H1N1 flu cases?
Because only a small proportion of persons with respiratory illness are tested for novel H1N1, at this time, confirmed and probable case counts represent a significant underestimation of the true number of novel H1N1 flu cases in the U.S., so the true benefit of reporting these numbers to track the course of the epidemic is questionable. In addition, because of the extensive spread of novel H1N1 flu within the United States, it has become extremely resource-intensive for states to count individual cases.
What monitoring system will CDC use to replace counting confirmed and probable novel H1N1 flu cases?
Instead of reporting confirmed and probable novel H1N1 flu cases, CDC has transitioned to using its traditional flu surveillance systems to track the progress of both the novel H1N1 flu pandemic and seasonal influenza. These systems work to determine when and where flu activity is occurring, track flu-related illness, determine what flu viruses are circulating, detect changes in flu viruses and measure the impact of flu on hospitalizations and deaths in the U.S
Why has CDC stopped reporting confirmed and probable novel H1N1 flu cases?
Because only a small proportion of persons with respiratory illness are tested for novel H1N1, at this time, confirmed and probable case counts represent a significant underestimation of the true number of novel H1N1 flu cases in the U.S., so the true benefit of reporting these numbers to track the course of the epidemic is questionable. In addition, because of the extensive spread of novel H1N1 flu within the United States, it has become extremely resource-intensive for states to count individual cases.
What monitoring system will CDC use to replace counting confirmed and probable novel H1N1 flu cases?
Instead of reporting confirmed and probable novel H1N1 flu cases, CDC has transitioned to using its traditional flu surveillance systems to track the progress of both the novel H1N1 flu pandemic and seasonal influenza. These systems work to determine when and where flu activity is occurring, track flu-related illness, determine what flu viruses are circulating, detect changes in flu viruses and measure the impact of flu on hospitalizations and deaths in the U.S