(Portland, OR) -- Flu is spreading fast. The Oregon Health Authority reports the statewide positivity rate is 30 percent, which is five percent higher than last week. Jackson and Josephine counties have the highest per-capita rate of flu. The OHA only tracks hospitalizations in the Portland-metro area where more than 100 people received hospital care for flu-like symptoms. That's up from 75 the previous week. The vast majority of those hospitalized are over the age of 65.