Actress Sharon Stone shared her sister's experience with Covid-19 on Instagram.<br />She said people who don't wear masks are to blame, according to reports at CNN.<br />Stone's post comes as more than 5.4 million people have been infected and 170,052 have died.<br />Health officials have expressed concern that as the pandemic drags on.<br />Some Americans are becoming complacent with health precautions and allowing for more spread.<br />Stone's sister, Kelly, had lupus before being diagnosed with Covid-19, which makes her compromised.
