Transcript for A new phase of COVID-19?
and they unfortunately include a new grim milestone. Confirmed coronavirus cases around the world crossed the 18 million mark with more than 4.6 million of those cases here in the U.S., as more than 10 million people recover globally. With me now here is ABC chief medical correspondent Dr. Jen Ashton, certainly a busy one for the virus, unfortunately it seems to be these days. Usually we do a deep dive on a topic at this point. Today, you wanted to bring us up to date on several key issues. This was a busy weekend and Dr. Deborah birx, head of the coronavirus task force, making news with several comments she made just yesterday, she's now suggesting that masks being worn at home for people who live with a vulnerable individual. She's saying assume you're infected if you live in an area with high viral activity and she's reminding/bringing to our attention that household transmission seems to be a huge factor in transmission of this virus. Percentage of test positivity is up in most states and some public health officials are calling for a reset. What exactly does a reset mean? I think people, we need to get familiar with that new vocabulary term. Because I have a suspicion that we'll be hearing a lot more about it, we're starting to hear a call for this, what this means, not necessarily back to exactly what we lived through in the spring, but Johns Hopkins center for health security, calling for people to identify themselves in this process as quarterbacks to lead each policy action on a federal state territorial local level. Shutting down of certain high-risk activities in some areas. Unfortunately it looks like it will be necessary. Key to encourage/mandate the use of masks, social distancing, we call those the nonpharmaceutical interventions and also really important in this reset, we have to do better on the test turnaround times, we can't manage this virus if it takes seven to ten days to get a test result back. And that's where we are in New York City right now. That's right, and a lot of this is evolving. We do seem to be entering a new phase here. A lot of developments. Okay, Dr. Jen, thank you.
This transcript has been automatically generated and may not be 100% accurate.