News out there exists to induce some heightened emotional response. Either a WOW factor or a FEAR factor. Apparently, news to induce the FEAR factor is usually available. You don't believe me - then count the negative news and positive news articles for a 15-20 days. This stands true even without the Covid-19 fear.
When working from home, limit your TV news time. I watch business news mostly and that too for a limited period. Do not let news chatter in the background.
Go for a 15-30 minute walk alone, it will help in reducing anxiety. And get some sun - it does wonders.
There is a saying: yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present.” - Master Oogway, Kung Fu Panda.