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How does rhetoric play into debates about vaccination? Mason professor Heidi Lawrence tells John Hollis about her research into the role that professional communication from physicians, health officials, and researchers plays in shaping public debate and parental beliefs about vaccines.

John Hollis is a seasoned journalist, a master interviewer and, as a senior communications officer at George Mason Â鶹¹ú²ú, his familiarity with his subjects makes for enlightening and entertaining conversations.