cbs' elise preston is in busy midtown manhattan tonight with all that news. good evening, elise. >> reporter: good evening, norah. three surges are happening around the country tonight. there's a surge in the number of omicron cases, a surge in covid testing, and a surge in holiday travelers. this all has health officials concerned. along with packed airports comes fears of packed hospitals as the omicron variant spreads at an alarming rate. the number of people traveling is approaching pre-pandemic levels, with 109 million americans expected to leave home for the holidays, a 34% jump from last year. more than six million of them will be flying. long lines are also at covid testing sites in new york, miami, and rockford, maryland, where the drive-through testing line stretched for several blocks. >> this is not a moment to panic because we know how to protect people. >> reporter: the c.d.c. says omicron is expected to surpass delta as the dominant variant in