"It was a vast (underestimate)," said Dr. Zack Moore, a respiratory disease expert for the North Carolina Department of Health and Human Services. What's more, as the initial panic of the new virus (ebbed), fewer people were fully tested, so the results weren't as accurate or comprehensive. "The kinds of numbers you were getting later in the summer were different from the numbers (early on)," said Dr. Daniel Jernigan, deputy director of the CDC's influenza division. That's why the CDC shifted to counting the new flu like it counts seasonal flu cases, agency officials said. "We're concerned folks are focused on the numbers and missing that influenza is monitored by looking (at trends)," Jernigan said. It's likely that millions of Americans have been sickened by swine flu by now, CDC officials say. New York City alone estimates it had (roughly )1 million cases since swine flu first hit last spring.
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