. -- shara stein at bloomberg. are you with us? mr. slavitt: let's take the next question. >> we will come back. next. >> i was hoping you might be able to explain what your assessment is of the early rollout of their johnson & johnson vaccine? the current number is showing 3.7 million distributed. this has been distributed for a couple weeks now . are you seeing hesitancy with that shot versus the others? mr. slavitt: let me ask dr. fauci, for people who have not heard the review before, for you to talk about the johnson & johnson vaccine. and how people should view it relative to the other two vaccines. and then i will go into the question more specifically. dr. fauci: just to reiterate what we have said multiple times on these briefings, that we have three highly efficacious, safe vaccines that are now available to the american public. they have not been compared one to the other. the only way to effectively do that would be head-to-head comparisons. that's why you will hear us say continuously that the way to look at it is there ar