A study of COVID-19 patients and the people they likely infected suggests the coronavirus can spread for more than two days before symptoms appear.

The tobacco industry sees the sales potential in the pandemic, offers up freebie protective gear, doorstep deliveries, festive discounts.

With no treatment for the new coronavirus, some people are trying alternative medicines. In China and India, the government has advised them to do so.

Nurses around the world are risking their lives tending to coronavirus patients.

A new study by Stanford University, using antibody blood tests, estimates that the number of cases in Santa Clara County may be 50 to 85 times greater than what was previously known.

Hydroxychloroquine, the drug President Trump hailed as a coronavirus killer, had no beneficial effect for COVID-19 patients in two controlled trials.

Men contending with coronavirus infection may have a pair of vulnerabilities that could increase their risk of longer, more severe illness: their testicles.

A study shows roughly 4% of L.A. County residents have contracted COVID-19, suggesting it might be less fatal locally than originally believed.

There are two main types of coronavirus tests. One tells you if you have an active infection, and the other checks to see if you were infected before.

California is now giving coronavirus testing priority to asymptomatic people in high-risk settings such as nursing homes and prisons.

What do scientists wish they knew about the coronavirus? Which treatments actually work, what antibodies are good for, and which public health measures help.

Coronavirus: Autopsies reveal the first confirmed U.S. COVID-19 deaths occurred in Bay Area in February.

As people across the globe stay home to stop the spread of the new coronavirus, Earth is becoming cleaner and more wild.

You've heard the term "herd immunity." Here's what it means and why it's important as we think about returning to something like a normal life.

Is a second wave of the coronavirus outbreak inevitable? Scientists say that depends on the nature of the virus itself as well as our own behavior.

Coronavirus: After weeks of backlogs, it's getting easier to obtain a coronavirus test in California.

Studies are finding that cigarette smokers are more likely to have severe cases of COVID-19, the disease caused by coronavirus. Many lung doctors say that doesn't surprise them much.

Testing sewage for the coronavirus may tell scientists how much disease is in a community — and when the virus has finally gone away.

The San Francisco Bay Area has seen consecutive weekly declines in the number of new coronavirus cases. Southern California has seen the pace increase.

It's slowly getting easier to obtain a coronavirus test in California — following an initial rollout marked by restrictions and shortages.

Most people who get COVID-19 will experience mild symptoms and will recover with rest and plenty of fluids. Over-the-counter drugs can help with fever.

Yes, there are significant health risks associated with lockdown. But returning to normal life too soon and rushing herd immunity would be even worse.

Actresses Gwyneth Paltrow and Kate Hudson are showing off the face masks they're wearing for air travel as the coronavirus spreads.

Vegan Fashion Week will livestream its runway behind closed doors. "The public event might be canceled, but the message cannot be," says founder.

Could this be the 'Amazon Prime moment' for cannabis deliveries?

Jared Ingold wanted to help his laid-off freelancer friends. He and his design partner ended up creating a collection of T-shirts, sweatshirts and caps inspired by the coronavirus pandemic.

L.A. brands Citizens of Humanity, Hedley & Bennett and Michael Costello, along with New York designers Brandon Maxwell and Christian Siriano, Italian label Prada and French conglomerate Kering, are making face masks and medical gowns.

If having facial hair means you're touching your face more often, an infectious disease expert says, 'That's not good.'

The coronavirus outbreak has closed malls and most stores. Disputes are brewing over rent. Retail may look quite different in the future, experts say.

The coronavirus took their day jobs in Hollywood, so costumers turned to making masks to meet a shortage of protective clothing among medical workers.

Fran Drescher will be part of a table reading on Monday with her former cast members from the CBS hit 'The Nanny.'

Some women are giving their hair a break, while others are learning the basics.

If sex-toy sales are any indication, people are seeking sexual pleasure during this anxiety-fraught period of extended social isolation.

The drop in foreign orders is devastating workers in the Southeast Asian country, which counts on the garment industry for 40% of its economic output. Those still employed now fear contracting COVID-19 inside cramped factories.

For years, the Cerpas sisters engaged in friendly competition, running their own dress shops. Now they've come together to make face masks.

Spa day, anyone? Here are our favorite beauty masks to treat yourself with while you stay at home.

The coronavirus has ended big budget brand deals for some influencers, but the focus has shifted to engaging with a potentially bigger audience more authentically.

L.A. sustainable fashion and accessories designers share their survival stories in the time of COVID-19.

Hoarding toilet paper, "forgetting" your mask, late-night hooking up? We want to hear your dirty little secret — anonymously.

Some parents say they want LAUSD schools to close as the novel coronavirus spreads. But L.A. Unified officials have yet to decide to do that.

The San Francisco Unified School District is closing all schools for three weeks beginning Monday. Four students and their family members at one campus have shown signs of respiratory illness.

The schools are closing Friday and Monday for deep cleaning and staff meetings after "a community member with children in our schools" was exposed to the virus, the district said.

Here's a parents' guide to school closures because of the coronavirus. What to do?

The action comes on the heels of the temporary closure of all schools in the Los Angeles Unified School District and schools in most of the state's largest cities, some of which made the decision to close earlier this week.

The closure of schools affects millions of students and is another dramatic step in the coronavirus outbreak.

We want to hear from you. Send us your questions and one of our reporters will answer them. Plus, send us your drawings and pictures.

UCI is the first University of California campus to do so, but other colleges and universities are expected to follow suit.

L.A. Unified officials have killed a plan to open 40 family resource centers. The district still will distribute food.

A former LAUSD teacher says that realities of sanitation in the district made closing schools absolutely necessary.

Having kids at home during the coronavirus pandemic is a challenge for parents. Here are some resources to help get you through the day.