New variant in South Africa is even more transmissible, UK says

• Biden says 'our darkest days' in battling Covid-19 'are ahead of us' • Fauci says he's confident in the vaccine. Here's why • Is the vaccine right for you? Here's how to tell • Antarctica records its first Covid-19 outbreak

source https://www.cnn.com/world/live-news/coronavirus-pandemic-vaccine-updates-12-24-20/index.html