EL CENTRO â Although vaccine doses have increased to more than 82,000 in Imperial County, COVID-19 positive case numbers are continuing to climb. The metric numbers that were released by the state Tuesday revealed that Imperial County for the first of two consecutive weeks no longer met two of the metrics in the past week to remain in the orange tier. Does that mean the county is headed back to the red tier or even the purple one? Not necessarily. Imperial County Public Health Director Janette Angulo said there is a lot of information that determines that decision. She said if a countyâs adjusted case rate and test positivity falls within a more restrictive tier for two consecutive weekly periods, the state will review the most recent 10 days of data, including hospitalization data.