To: Tenchusatsu who wrote (1218976 ) 4/10/2020 1:32:13 PM From: Wharf Rat Read Replies (1) | Respond to of 1577404 " It starts from the assumption that there are many, many more silent carriers of the coronavirus than we know about." Testing testing testing. Was coronavirus in California by fall 2019? Scientists are testing people to find out BY SUMMER LIN APRIL 08, 2020 10:38 AM, UPDATED 10 HOURS 14 MINUTES AGOThis article has Unlimited Access. For more coverage, sign up for our daily coronavirus newsletter . To support our commitment to public service journalism: Subscribe Now . Stanford Medicine researchers are testing people to find out how many Californians have coronavirus, media outlets reported. The study will account for the people who were infected but didn’t show symptoms or weren’t severely sick, according to The Mercury News. The test will show if they have antibodies and will be immune to the virus, the outlet reported. Stanford University tested 2,500 people on Friday and Saturday, the outlet reported. Researchers believe COVID-19 first appeared in fall 2019 in California — accounting for the state’s lower confirmed cases. As of April 6, California has 374 deaths due to coronavirus . Despite having half the population of California, New York has nearly 5,000 coronavirus deaths , according to Johns Hopkins University. Herd immunity is when enough of a population becomes immune to a disease through vaccine or already getting sick to make the spread unlikely between people in the community, according to the Centers for Disease Control and Prevention. Herd immunity also protects newborns and people who can’t be vaccinated because it helps decrease person-to-person spread, the CDC said. “This is critical information,” Dr. Eran Bendavid, an infectious disease specialist and professor of medicine with Stanford Health Policy, told The Mercury News. “We will show the country what to do and how to do it.” California Gov. Gavin Newsom called the study “the first home-grown serum test in the state of California,” according to The Mercury News.sacbee.com