Experts cautiously celebrate vaccine efficacy. Plus, accounts from first-year teachers mark a Covid anniversary.

Read today's top stories from NBC News.

March 9, 2021 Texans recovering from Covid-19 relied on machines to breathe. Then the power went out. By Mike Hixenbaugh and Perla Trevizo The number of Texans dependent on home oxygen equipment was at "an all-time high" when a storm overwhelmed the power grid. Outages left many who were recovering from Covid-19 at home struggling for air — and with potentially lasting harm. Read more Amid caution and concern, experts celebrate vaccine efficacy By Denise Chow | Read more 'Are you still here?' First-year teachers face overwhelming challenges in pandemic By Bracey Harris | Read more 'Shout it from the rooftops': $1.9 trillion Covid bill delivers stimulus and a political fight By Sahil Kapur | Read more Biden admin ditches Trump plan to limit immigration for those who may need government aid By Pete Williams | Read more The royal family breaks its silence on Harry and Meghan's tell-all interview By Yasmine Salam and Yuliya Talmazan | Read more Fearing 'masculinity crisis' could harm its global rise, China looks to schools By Zixu Wang, Xin Chen and Caroline Radnofsky | Read more FBI releases new video of suspect planting bombs before the Capitol riot By Pete Williams | Read more OPINION George Floyd was arrested on a misdemeanor. That exposes a basic flaw in the justice system. By Michael N. Herring and Jenny Roberts| Read more 'Really messy': Why the hack of Microsoft's email system is getting worse By Kevin Collier | Read more Get the NBC News Mobile App Follow NBC News This email was sent by: NBC News 30 Rockefeller Plaza New York, NY 10112   This is an automated email. Do not reply directly to this email. Privacy | Unsubscribe | More NBC Newsletters | Contact View in browser