Britain on Tuesday became the first country in Europe to confirm more than 30,000 coronavirus deaths, and infections rose sharply again in Russia, even as other nations made great strides in taming the virus. China marked its third week with no new virus deaths.

In the U.S., some states took steps to lift lockdown restrictions that have put millions out of work and upended the global economy, although thousands of new U.S. infections and deaths have been reported daily.

Here are some of AP’s top stories Tuesday on the world’s coronavirus pandemic. Follow APNews.com/VirusOutbreak for updates through the day and APNews.com/UnderstandingtheOutbreak for stories explaining some of its complexities.

WHAT’S HAPPENING TODAY:

— President Donald Trump is going back on the road, visiting Arizona to see a Honeywell facility that makes N95 masks, after rarely leaving White House grounds during the coronavirus pandemic. He said he’ll also go to Ohio, to New York in June for the U.S. Military Academy graduation and to South Dakota in July for a holiday fireworks display at Mount Rushmore.

— Since a lethal flu outbreak in 1918, the world has learned about viruses, cured various diseases, made effective vaccines, developed instant communications and created elaborate public-health networks. Yet, like the misnamed Spanish flu pandemic, no one has come up with a treatment or cure for the coronavirus, either.

— French scientists say they may have discovered a coronavirus case that preceded the first official cases in Europe by weeks. A fishmonger in his 40s from Algeria who has lived in France for years and had no recent travel history was admitted to a hospital in late December with chest pains and breathing difficulties.

— New York state is now reporting more than 1,700 previously undisclosed deaths at nursing homes and adult care facilities as the state faces scrutiny over how it has protected vulnerable residents.

— Many governments eager to reopen their societies while monitoring new coronavirus outbreaks are starting to bet on smartphone apps to help stanch the pandemic. But experts acknowledge there are uncomfortable trade-offs between protecting privacy and public health.

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WHAT YOU NEED TO KNOW:

For most people, the coronavirus causes mild or moderate symptoms, such as fever and cough that clear up in two to three weeks. For some, especially older adults and people with existing health problems, it can cause more severe illness, including pneumonia and death. The vast majority of people recover.

Here are the symptoms of the virus compared with the common flu.

One of the best ways to prevent spread of the virus is washing your hands with soap and water. The U.S. Centers for Disease Control and Prevention recommends first washing with warm or cold water and then lathering soap for 20 seconds to get it on the backs of hands, between fingers and under fingernails before rinsing off.

You should wash your phone, too. Here’s how.

TRACKING THE VIRUS: Drill down and zoom in at the individual county level, and you can access numbers that will show you the situation where you are, and where loved ones or people you’re worried about live.

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ONE NUMBER:

— 2: The number of hits given up by former Detroit Tigers pitcher Warwick Saupold in his complete-game shutout for the Hanwha Eagles as baseball returned to empty stadiums in South Korea.

IN OTHER NEWS:

— RIGHT AT HOME: Grilling seems like a simple pleasure for people cooped up at home. There are all kinds of stylish and practical barbecue gear available to help.

— CINEMA MACHINE: The coronavirus has brought back something unseen in Iran since its 1979 Islamic Revolution: a drive-in movie theater. Once decried by revolutionaries for allowing too much privacy for unmarried young couples, a drive-in theater now operates from a parking lot right under Tehran’s iconic Milad tower, showing a film in line with the views of hard-liners.