How is Omicron different? Here's what you need to know

The highly contagious Omicron variant is spreading at a rapid pace across the world. Should your kids go back to school? What symptoms should you be looking for? CNN Medical Analyst Dr. Leana Wen answers those questions and more so you can keep your family and yourself safe.

02:50 - Source: CNN

Stories worth watching

TOPSHOT - A health worker takes a nasal swab sample at a COVID-19 testing site at St. John's Well Child and Family Center, amid the novel coronavirus pandemic, July 24, 2020, in Los Angeles, California. - The coronavirus pandemic hit grim new milestones July 23, with cases topping four million in the United States and three million in Europe as fresh spikes from Belgium to Tokyo to Melbourne forced new restrictions on citizens. (Photo by VALERIE MACON / AFP) (Photo by VALERIE MACON/AFP via Getty Images)

TOPSHOT - A health worker takes a nasal swab sample at a COVID-19 testing site at St. John's Well Child and Family Center, amid the novel coronavirus pandemic, July 24, 2020, in Los Angeles, California. - The coronavirus pandemic hit grim new milestones July 23, with cases topping four million in the United States and three million in Europe as fresh spikes from Belgium to Tokyo to Melbourne forced new restrictions on citizens. (Photo by VALERIE MACON / AFP) (Photo by VALERIE MACON/AFP via Getty Images)

VALERIE MACON/AFP/AFP via Getty Images

Now playing

02:50

How is Omicron different? Here's what you need to know

japanese salarymen tiktok1

Daniel Campisi/CNN

Now playing

01:58

This company uses silly TikTok videos to recruit new employees

nightcap surveil 16x9 thumb

Now playing

02:22

Your employer might be tracking you. Here's how

Late night Joe Biden

"The Daily Show with Trevor Noah"/Comedy Central

Now playing

01:45

See late night reactions to President Biden claiming pandemic over

elizabeth warren jamie dimon

Now playing

03:07

Watch Sen. Warren confront banking execs over Zelle fraud concerns

iMessage iOS 16 Sam Kelly

Now playing

02:24

You can now edit and unsend iMessages. Here's how it works

01 Jeopardy Answer Change

Jeopardy/CBS

Now playing

01:43

Social media erupts after 'Jeopardy!' contestant allowed to change answer

blue origin rocket launch fail DT thumb vpx

Blue Origin

Now playing

02:05

See moment Blue Origin rocket catches fire during launch

marvel star wars movies series disney d23 orig jc _00000000.png

marvel star wars movies series disney d23 orig jc _00000000.png

Now playing

01:29

From werewolves to Jedi masters to secret wars, Disney just revealed a lot

Botometer is the tool Elon Musk used to make his initial claim about the number of bots on Twitter.

Botometer is the tool Elon Musk used to make his initial claim about the number of bots on Twitter.

John Genera/CNN

Now playing

02:57

Here's how Elon Musk calculated the number of bots on Twitter

lste night special master

"The Daily Show with Trevor Noah"/Comedy Central

Now playing

01:59

See late night hosts react to Trump's request for a 'special master'

Wedys Gray Hair SCREENGRAB

twitter/@WendysCanada

Now playing

00:56

See why Wendy's gave iconic mascot gray hair in Canada

video thumbnail LOTR

Elijah Wood

Now playing

00:47

'Lord of the Rings' stars defy racist critics after Prime show controversy

panama floating homes 1

Ocean Builders

Now playing

02:26

How these floating homes might withstand hurricane conditions

John Oliver marries cabbage

Now playing

02:29

Late night love story: John Oliver marries a cabbage

Hart House

Hart House

Now playing

01:29

Kevin Hart takes on fast-food chains with new vegan restaurant