booster shot offers improved protection against the new variant. still, it is the delta variant fueling a rise if cases across the country. over the past two weeks numbers spiking more than 100% in rhode island and illinois. health experts say that doesn t mean traveling this holiday season is out of the question. number one, make sure as many people are up to date with boosters. number two, have access to testing. reporter: the keys to a festive and safe holiday. nbc news. we re beak in a moment with the next frontier in the race to find a cure for cancer. and from here in kentucky on this sunday, ho the w there is no place like home y all! and these people know that there is no place like wayfair. i never thought i d buy a pink velvet sofa, but when i saw it, i was like ah . and then i sat on it, and i was like ooh . ooh! stylish and napable. okay now. i can relate to this one. i m a working mom with three boys. [ yelling ] wayfair is my therapy.