EDITOR’S NOTE: Changes in contact index data (CX) precede those in virus reproduction number by 2+ weeks. “CX thus is an early indicator for outbreaks and can be used to guide social-distancing policies.”
EDITOR’S NOTE: Changes in contact index data (CX) precede those in virus reproduction number by 2+ weeks. “CX thus is an early indicator for outbreaks and can be used to guide social-distancing policies.”
