As many as 70,000 Americans could be confirmed as infected with coronavirus by the end of next week, marking a “pretty dramatic” increase in the number of confirmed cases, the director of the National Institutes of Health, Dr. Francis Collins, told his employees in an agency-wide conference call on Friday.

But, Collins cautioned, “that doesn’t mean necessarily that the outbreak has exploded at an even more rapid rate.”

“It just means we’re now able to find out who’s out there, who is infected,” because “testing is now going to be much more available across the country,” he said.