>> that was nbc's blayne alexander reporting. up next we'll answer more of your questions about covid, including on the vaccines. dr. kavita patel joins us for our latest installment of "dear dr. ." that's ahead. stay close. stay close and talk about how liberty mutual customizes your car insurance so you only pay for what you need? uhhh... yes. huh... what happens in this one? seagulls. oh, i like it. how are you doing? (seagulls sounds) only pay for what you need. ♪ liberty. liberty. liberty. liberty. ♪