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

Have Burning Questions about the Latest in the Pandemic? Ask an Epidemiologist | GZERO World

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!
In this Quick Take, Ian Bremmer reacts to President Trump’s State of the Union address, calling it “a rehashing of the greatest hits” with little new policy direction.
Small business hiring surged 7% above the 2024 average in December, led by a surprise rally in retail. But with uncertainty still historically high and mounting concerns over tariffs, can this momentum survive 2026? Explore the data behind the resilience of the US small business sector. Get the latest economic insights from Bank of America Institute.