CNN's Dianne Gallagher gets access inside a North Carolina lab that is sequencing Covid-19 variants.

After the first detected case of the Omicron variant in the US, the World Health Organization has issued guidance against travel bans. WHO spokesperson Dr. Margaret Harris joins CNN's Brianna Keilar to discuss.

Biden outlines new steps to combat Covid through winter months. Chris Nguyen reports.

During a CNN Global Town Hall, Moderna President Stephen Hoge responded to comments from the company's CEO Stéphane Bancel in which he suggested that current vaccines might struggle with the Omicron variant.

Despite the US announcing its first case of the Omicron coronavirus variant, Dr. Anthony Fauci said during a CNN town hall that holiday travel is safe for those who are vaccinated.

It's a little strip of paper not much longer than two inches, and it has the potential to prevent a drug overdose. CNN's Sanjay Gupta reports.

Roe V Wade in jeopardy as SCOTUS weighs abortion case

Dr. Anthony Fauci spoke at a White House press briefing, announcing that the first confirmed US case of the Omicron coronavirus variant was discovered in California.

A major step forward for the first Covid-19 antiviral pill. FDA advisers narrowly vote to recommend emergency use authorization of Merck's medicine, which is said to lower the risk of severe disease in a person infected with Covid-19, but there…

The Supreme Court is set to hear oral arguments on the Mississippi abortion law this morning.

Dr. Sanjay Gupta explains the difference between four coronavirus variants the CDC has at one point described as "Variants of Concern."

The CDC is strengthening its stance on boosters for all US adults amid concerns over the Omicron variant. Top US health officials say vaccinations, boosters and mask wearing are keys to protecting against any variant of the virus.

Dr. Jonathan Reiner, a CNN medical analyst and cardiologist, responded to the latest travel restrictions related to the Omicron coronavirus variant, saying travel bans are "an illusion of protection."

CNN's Chief Medical Correspondent Dr. Sanjay Gupta talks with survivors of Covid-19 and how the virus can damage your body.

Germany is in the middle of dealing with their worst Covid-19 outbreak since the pandemic has began. With a combination of low vaccine rates and the new Omicron variant being detected in the country, healthcare leaders are concerned. CNN's Fred…

Dr. Angelique Coetzee, one of the first doctors in South Africa treating Omicron patients, joins New Day to discuss the severity and symptoms she is seeing in patients with the latest Covid-19 variant.

CNN's John Berman asks Dr. Anthony Fauci about Covid-19 vaccine boosters for kids and teenagers six months after their second vaccine shot.

Matthew Davidson was one of the more than 100,000 people to die from a drug overdose in the US from May 2020 to April 2021. CNN's Miguel Marquez speaks to his mother on how she works to stop others from…

Dr. Anthony Fauci talks with Jake Tapper about the Omicron variant of Covid-19 and working with health officials in South Africa.

Many families are coming together this holiday season for the first time in a long time. CNN's Dr. Sanjay Gupta shares these tips on how to protect your loved ones from getting Covid-19.

North Carolina family stranded in South Africa due to Omicron variant

Dr. Peter Hotez discusses the Omicron variant and when we'll know if vaccines are effective against it.

Dr. Francis Collins cautions that people should continue to take every measure they can to prevent the spread of Covid-19 as the world grapples with the emergence of the Omicron variant.

Dr. Anthony Fauci shared that it's possible the Omicron Covid-19 variant is already in the US during an NBC interview.

Covid-19 'is going to become endemic...the goal is just to tame it,' says infectious diseases specialist Dr. Amesh Adalja. UNICEF's Lily Caprani warns that many people across the globe remain 'dangerously unprotected.'