What is “close contact” in the era of the delta variant?


Hello, Bay Area. It’s Wednesday August 25th and the scene in Lake Tahoe is smoky and grim. Here’s what you need to know to start your day.

The rise of the highly transmissible delta variant has forced a quick pivot on some key pandemic public health recommendations, but experts say there is still one that could use a new review: the definition of “close contact” with a patient. infected person.

This standard dictates when a person exposed to the coronavirus should get tested or self-isolate, and for most of the COVID-19 pandemic, the directive has been “6 feet for 15 minutes.” But experts say that since Delta turned the situation around, new understanding is needed as people make choices about their behaviors and risks.

Read more by Annie Vainshtein.

• Back on campus with new rules, Bay Area colleges are laboratories for “normal” life in the COVID era.

• The family of the San Quentin warden who died of COVID after a botched prisoner transfer is suing the state.

• COVID in California: Latest News and Updates.

Lost outdoor paradise

Smoke filled the sky over Emerald Bay of Lake Tahoe on Tuesday.

Michael Macor / The Chronicle Special

With Caldor’s Growing Fire encroaching on the Lake Tahoe Basin on Tuesday, the area has gone from an outdoor paradise to a place to endure. The sky, usually as blue as the lake, turned yellowish gray, and the normally pine-scented air stank like a soggy ashtray.

Campgrounds and beaches have been closed, boats have been banned from accessing the lake, and even the iconic gondola that carries visitors from the Stateline area to the Heavenly Resort has been closed. It wasn’t the end of summer at the lake that residents and visitors are used to.

“We’ve never seen so much smoke here, ever,” said Joe Stella, manager of Powder House ski, snowboard and bike rental store.

Read more from Danielle Echeverria and Michael Cabanatuan.

• How do evacuations work in remote rural areas of California? It can be difficult.

• These graphics show how the fires have changed California.

Around the bay

Saori Okawa is an Instacart customer and former Uber and Lyft driver who opposes Proposition 22, which keeps delivery and delivery drivers classified as contract workers.

Saori Okawa is an Instacart customer and former Uber and Lyft driver who opposes Proposition 22, which keeps delivery and delivery drivers classified as contract workers.

Brontë Wittpenn / The Chronicle

A long way to go: Despite the decision of Prop. 22, Uber and Lyft drivers aren’t going to be employees anytime soon.

Recall election in California:
How to vote and what to know. Joe Garofoli: Gavin Newsom’s campaign airing shows early success. Also: Kevin Kiley gets approval from a former competitor to replace Newsom.

Running to save your life: In Afghanistan, these girls climbed mountains. The Taliban takeover leads them to turn to friends in the Bay Area for help.

“Unthinkable” either: SF has become the most expensive rental market in the country. Here is the new # 1.

Pilot program: Waymo offers robotic taxi rides in SF – if you are selected for their test program.

Caution advised: A 14-year-old boy died at home. Concord police are investigating whether a pill containing fentanyl caused accidental OD.

Win for the neighbors of the campus: UC Berkeley has ordered to freeze registrations and stop a housing project for teachers.

Dismissal confirmed: The lawsuit brought by Kate Steinle’s parents to hold the government accountable for the theft of a gun is dismissed.

Gastronomic giants at the festival: Ayesha Curry, G-Eazy and more to hit BottleRock’s culinary step.

Obituary: Harry Denton, bartender and noisy entrepreneur from San Francisco, dies at 77.

SF’s tailor-made secret bins

Andrew Damele (left), prototypes manager for APROE, chats with production manager Tony Rojas at the company's San Francisco studio.

Andrew Damele (left), prototypes manager for APROE, chats with production manager Tony Rojas at the company’s San Francisco studio.

Léa Suzuki / The Chronicle

In the backroom of APROE, a design and engineering company in San Francisco’s Design District, a top-secret project takes shape: prototypes for the city of San Francisco’s new trash can, which has been discussed at length. . They will cost $ 12,000 each – the low end of the Department of Public Works’ initial estimates of up to $ 20,000.

When the cans are finally produced in large quantities, they will cost between $ 2,000 and $ 3,000, still expensive but less expensive than the competition. But as columnist Heather Knight writes, the most distressing figure is the time it takes for the notoriously slow City Hall to replace the 3,000 trash cans that have already passed their lifespan.

Enter APROE’s design studio with Knight and learn about his potential, still unsigned, deal to create 15 cans – five of each prototype – to place in the city in November for testing.

Survey of columnists:
Which prototype bin would you choose?

Bay Briefing is written by Kellie Hwang and Anna Buchmann and sent to readers’ inboxes on weekday mornings. Sign up for the newsletter here and contact the editors at anna.buchmann@sfchronicle.com and kellie.hwang@sfchronicle.com.


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