Even Mayor de Blasio came close to using the dreaded q-word, suggesting the five boroughs could be quarantined and some public schools might be temporarily closed over the coronavirus outbreak after three more people, including a 7-year-old girl from the Bronx, tested positive for the fast-spreading disease. And he conceded the outbreak will keep him off the campaign trail as a surrogate for Sen. Bernie Sanders (I-Vt.). “I don’t have any plans to go out of state anytime soon," he told NY1 Monday night.