https://www.siliconvalley.com/2020/03/29/warning-quick-coronavirus-blood-test-could-spell-trouble-experts-say-2/

As some rushed to grab a quick, $47 blood test from a doctor in Little Saigon that can detect antibodies to the novel coronavirus in just minutes, the Orange County Health Care Agency issued a stern warning against them this week.

“These non-approved tests can produce false results and lead to unintended negative consequences for the individual and the broader community,” Orange County Health Officer Nichole Quick said in a statement.