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i'm also hopeful -- i don't want another surge in cases to occur in order to drive people to get vaccinated, but sometimes it is that really immediate fear that drives folks to chactually showp and get the vaccine. we're seeing it. we're seeing changing messaging from some politicians and media figures saying, go get a vaccine, don't put yourself and your community at risk. we may start to see a shift in vaccination numbers in those hard-hit communities right now. >> a lot of questions people have relate to what they should do if they are already vaccinated. we've seen some breakthrough cases, which is to be expected. these vaccines are very good, but they are not 100% going to prevent you from becoming infected. just this morning a professor of biology at dartmouth said what