A new Omicron variant, known as BA.2, is spreading throughout the world. In the U.S., it’s now the dominant version of the Covid-causing virus. That has public health experts worried about potential new Covid-19 surges. WSJ’s Daniela Hernandez explains what you need to know about this new, more transmissible Covid variant. 0:00 You’ve probably heard about BA.2 0:37 BA.2 vs. BA.1 Omicron variants 1:32 Is BA.2 more dangerous than previous Omicron versions? 2:20 Can you get reinfected with BA.2 if you had Omicron recently? 3:55 How to protect yourself against BA.2 I’m Daniela Hernandez, a health and science reporter for WSJ, and on this channel I’ll be covering a variety of subjects from Covid-19 to planetary science and climate change. If you’re interested in science and health and how cutting edge research impacts our lives, don’t forget to subscribe. #BA2 #Covid #DanielaHernandez