contact tracing

Omicron & the undoing of China's COVID strategy

GZERO World with Ian Bremmer

Omicron & the undoing of China's COVID strategy

In China, Xi Jinping's zero-COVID approach faces its toughest test to date with omicron. Why? Because China lacks mRNA jabs, and so few Chinese people have gotten COVID that overall protection is very low.

Social media sites overwhelmed by misinformation about Trump's condition

Tech in 60 Seconds

Social media sites overwhelmed by misinformation about Trump's condition

Nicholas Thompson, editor-in-chief of WIRED, shares his perspective on technology news in Tech In 60 Seconds:

With Trump testing positive for corona, how are social media sites combating the mountains of misinformation? New York City released a contact tracing app. How does it work and will other cities adopt it?

Ask an epidemiologist: Harvard's Marc Lipsitch answers your COVID questions

Ask an epidemiologist: Harvard's Marc Lipsitch answers your COVID questions

Do masks really protect us? Are children less vulnerable to COVID-19? And why do scientists hope you avoid indoor bars? This week, GZERO World is taking all of our burning questions about the latest in the pandemic to a Harvard epidemiologist. Marc Lipsitch is a Professor in the Department of Epidemiology at the Harvard T.H. Chan School of Public Health and the Director of the Center for Communicable Disease Dynamics. So, he knows his stuff!