There’s probably way more Zika in the United States than has been counted
The Atlantic - 08/03/2016
Then there are the unknowns that are harder to pin down: How many cases of Zika are going uncounted? It turns out, that number may be enormous.
Researchers at Northeastern University say federal-health officials are likely vastly undercounting Zika in the United States. In a paper that’s still under review for journal publication, they describe computer modeling that suggests there were nearly 30,000 cases of travel-related Zika in the country in mid-June, about 25 times more cases than the 1,200 or so reported by the CDC at the time.