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A colorized electron microscope image from the National Institute of Allergy and Infectious Diseases shows a single human immunodeficiency virus budding from a human immune cell, which the virus had infected.

Discovery of HIV variant shows virus can evolve to be more severe — and contagious

Findings from a new study help answer questions about why some people get more severe and transmissible HIV than others — and serve as a reminder that viruses don't always weaken over time.

Chinese torchbearers and Olympic athletes Dinigeer Yilamujian, left, and Zhao Jiawen place the Olympic flame into its snowflake cauldron during the opening ceremony of the Beijing 2022 Winter Olympic Games, at the National Stadium, known as the Bird's Nest, in Beijing.

The Beijing Winter Olympics' cauldron lighting made a political statement

The cauldron is a snowflake, with a much smaller flame than usual. It was lit by two Olympians, including an athlete from the Xinjiang autonomous region, home to the Uyghur minority.

Des Moines Refugee Support is running a collection drive for housewares and personal items for Afghan families.

Volunteer group runs collection drive for Afghan refugees

Saturday, a refugee support organization is collecting donations for new arrivals in central Iowa.

The team from the United States arrives during the opening ceremony of the 2022 Winter Olympics, Friday, Feb. 4, 2022, in Beijing.

These are the largest teams competing at the Winter Olympics

More than 220 athletes will represent the United States at the Olympics in Beijing, making it the largest delegation at the Games. Other large teams include China and the Russian Olympic Committee.

A firework display is seen during the opening ceremony of the 2022 Winter Olympics at the Beijing National Stadium on Friday.

The Winter Games have begun. See photos and highlights from the opening ceremony

The Winter Games kicked off Friday night in Beijing with an eye-catching but scaled-back opening ceremony. The city has made history as the first to host both the Summer and Winter Games.

Pita Taufatofua makes an entrance during the opening ceremony of the 2018 Pyeongchang Winter Olympics. Taufatofua competed in taekwondo and cross-country skiing, but he's most famous for carrying the flag of Tonga for three consecutive Games, stealing the show each time.

Tongan flag bearer Pita Taufatofua is skipping the Games to focus on volcano relief

Taufatofua made headlines as Tonga's bare-chested flag bearer at the last three opening ceremonies. He's missing the 2022 Games to help his country recover from January's deadly tsunami.

Actor Thandiwe Newton addresses colorism in the casting of films

While promoting her new movie God's Country, Newton talked about wanting to "apologize every day to darker-skinned actresses" for being chosen for roles.

Mike Bolduc struggles to push a car out of his neighbor's driveway on Friday morning in Lewiston, Maine.

Powerful winter storm drifting out to sea, but its effects will be felt for days

Ice will remain the major threat in the storm's wake as crews scramble to restore power to hundreds of thousands of customers.

What have we learned about the seven Iowans charged in relation to the January 6 riot?

A look at all the Iowans who allegedly took part in the storming of the U.S. Capitol.

A retail union representative holds a sign by the Amazon warehouse in Bessemer, Ala., during the first union election in March 2021.

Amazon warehouse workers in Alabama vote for second time in union effort

Last year, Alabama workers voted against forming the first unionized Amazon warehouse in the U.S. Then, federal labor officials said Amazon unfairly influenced that election. Now, a re-vote begins.

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