Officials acknowledged a catastrophic failure by police to not immediately enter the classroom as a gunman massacred 19 students and two teachers.
Author: Jeanine Santucci and Christine Fernando, USA TODAY
Should I wear a mask in my county? CDC map shows COVID risk levels: Live COVID updates
The CDC announced new COVID-19 metrics Friday, which place most of the U.S. population in areas of low or medium risk of COVID. Latest COVID news.
Crackdown on Freedom Convoy continues as Canadian police arrest at least 170 protesters: COVID updates
Ottawa Police said 47 people were arrested Saturday amid an unprecedented police effort to clear the streets of protesters against COVID restrictions.
New York COVID cases ‘going up exponentially’; state breaks its single-day case record: Latest COVID updates
New York state, hit hard in the earliest wave of the coronavirus pandemic, has now tallied a record number of COVID cases in a single day. Updates.
New York COVID cases ‘going up exponentially’; ‘SNL’ will have no live audience: Latest COVID updates
New York state, hit hard in the earliest wave of the coronavirus pandemic, has now tallied a record number of COVID cases in a single day. Updates.
Experts warn omicron could be in US undetected; scientists wait for key answers; cases found in UK: Latest COVID updates
Fears over the omicron COVID-19 variant have rapidly spread across the globe, sending stocks tumbling and prompting travel restrictions.
Most states see rising COVID cases as winter surge fears grow; some states expand booster access. Latest COVID-19 updates
The delta variant and waning immunity may set progress in the fight against COVID back this winter, especially as more people gather indoors.
Lingering COVID symptoms are common, new studies find; US passes 700k deaths. Latest COVID-19 updates
Two studies this week added to a growing body of research that has found lingering COVID symptoms are common. COVID-19 updates.
COVID racial disparities also affect kids, report says; Moderna vaccine protection staying especially strong: Latest COVID-19 updates
New research from the CDC shows that effectiveness of the Moderna vaccine is staying particularly strong. Latest COVID-19 updates.
Some COVID hot spots see increase in vaccinations; Massachusetts outbreak shows ‘vaccines are working’: Live COVID-19 updates
More people are deciding to get vaccinated for COVID-19 in some pockets of the U.S. where vaccination rates are low and COVID-19 case rates are high.