As heartbreaking images of a mass grave on New York City’s Hart Island garner national attention, some wonder why California, the West Coast epicenter of the pandemic, isn’t being hit harder. Stanford University researchers believe the COVID-19 virus came to California last fall and was misidentified as a bad outbreak of the flu. Now, it’s possible millions of Californians were exposed to the virus and have developed herd immunity. Plus, Dr. Oz gives tips on how to properly wear a mask. Source