LA & USC joint study says 4% of LA county has antibody to coronavirus. Meaning actual infection rate is 28-55x higher in LA than previously thought. Drives death rate from virus down massively: http://www.publichealth.lacounty.gov/phcommon/public/media/mediapubhpdetail.cfm?prid=2328">https://www.publichealth.lacounty.gov/phcommon/...
This also means the USC and Stanford study have both found similar rates of infection in both Santa Clara and LA county.