The percentage of emergency room visits for fever or other flu-like symptoms in Connecticut has spiked slightly over the past two weeks, signaling a possible resurgence of the swine flu, the state epidemiologist said at a summit to help municipal leaders prepare for the next wave of the pandemic. "This may represent the return of H1N1 to Connecticut," Matthew Cartter, MD, told the 450 municipal and health professionals at the Connecticut Convention Center.