…This Order will take effect at 11:59 p.m. on April 17, 2020, and will continue to be in effect until it is extended, rescinded, superseded, or amended in writing by the Health Officer. But this Order will not be enforced until 8:00 a.m. on April 22, 2020.…
…As used in this Order, a “Face Covering” means a covering made of cloth, fabric, or other soft or permeable material, without holes, that covers only the nose and mouth and surrounding areas of the lower face. A covering that hides or obscures the wearer’s eyes or forehead is not a Face Covering. Examples of Face Coverings include a scarf or bandana; a neck gaiter; a homemade covering made from a t-shirt, sweatshirt, or towel, held on with rubber bands or otherwise; or a mask, which need not be medical-grade. A Face Covering may be factory-made, or may be handmade and improvised from ordinary household materials…
…All members of the public, except as specifically exempted below, must wear a Face Covering outside their home or other place they reside in the following situations:
a. When they are inside of, or in line to enter, any Essential Business (as that term is defined in Section 13.f of the Health Officer’s Order No. 20-04, dated March 31, 2020 (“Order No. 20-04”)), including, but not limited to, grocery stores, convenience stores, supermarkets, laundromats, and restaurants;
b. When they are inside or at any location or facility engaging in Minimum Basic Operations or seeking or receiving Essential Government Functions (as defined in Sections 13.g and 13.d, respectively, of Order No. 20-04);
c. When they are engaged in Essential Infrastructure work (as defined in Section 13.c of Order No. 20-04);
d. When they are obtaining services at Healthcare Operations (as defined by in Section 13.b of Order No. 20-04)—including hospitals, clinics, COVID-19 testing locations, dentists, pharmacies, blood banks and blood drives, other healthcare facilities, mental health providers, or facilities providing veterinary care and similar healthcare services for animals—unless directed otherwise by an employee or worker at the Healthcare Operation; or
e. When they are waiting for or riding on public transportation (including without limitation any bus, BART, , or CalTrain) or paratransit or are in a taxi, private car service, or ride-sharing vehicle.
The FDA has approved an antibody test by Stanford University to determine if someone has contracted the coronavirus even if they have already recovered. The widely used nasal swab tests can only detect an active infection.
“We don’t really know that these antibodies provide immunity, that’s one of the things that we’re trying to figure out very quickly,” says Dr. Yvonne Maldonado, Chief of Infectious Diseases at Lucille Packard Children’s Hospital and professor at the Stanford School of Medicine. “We just know that the antibodies are directive against the virus, and what we think that will show us is whether someone has been infected or not.”