Gov. Andrew Cuomo announced Wednesday the state will develop a "tracing army" to be led by former New York City Mayor Michael Bloomberg.

Cuomo said the most important actions to take now to battle coronavirus and eventually start reopening the economy are testing and tracing. He says that was the main topic discussed at his Oval Office meeting with President Donald Trump Tuesday.

"We set as a goal yesterday to double the number of state tests to go from 20,000 to 40,000," Cuomo said. "Once you do all those tests, every positive you have, to go back and trace and the tracing is a very big, big deal."

He says Bloomberg is volunteering his services and spearheading a test-trace-isolate program that will be coordinated throughout the tri-state area.

The governor says SUNY and CUNY have 35,000 medical students that they will draw from to be part of what he calls the tracing army.

"What is contact tracing? That is monitoring and tracing the contacts of infected people and the more you can find infected people, the more quickly you can isolate them and prevent a further spike in infection," says Nassau County Executive Laura Curran.

Nassau County now has two new testing sites in Freeport and Hempstead. Suffolk County Executive Steve Bellone says a new site will open in Coram on Friday.