SEATTLE - Dr. Jeff Duchin doesn't regret King County applying to move up to Phase 2 of the governor's reopening plan, despite seeing a 47% rise in COVID-19 cases.

"This is not a time to let down our guard," he said. "As we begin to do more and we begin to have more activities we've always known that the risk will be increased."

Duchin, the county's public health officer, says even with that knowledge, seeing an increase of 113 more new cases this week than the previous week makes him concerned.

To him, it further reiterates that people need to continue doing things like social distancing, wearing masks and getting tested.

"We're dependent on one another in order to move forward safely," Duchin said.

While many have taken part in large protests throughout the state and the country, Duchin says there isn't one sole factor behind this increase.

"Out of all the hundreds of cases that we see each week, in the last week, we identified only six people as having attended a rally or protest event," Duchin said.

According to Duchin, that could change depending on how many protesters go and get tested.

He says many of these new cases come from young adults throughout the county and people living in Seattle.

"If these increases continue we'll have to think about whether or not we need to step back," Duchin said.

Which is why he's stressing that people pay attention to the numbers and be careful when deciding to get a haircut or go to a restaurant.

"We'd love to be able to continue to move forward but we do need to manage the risk as we go forward," Duchin said.

He isn't certain if this is going to be a trend of rising cases. But seeing last week's numbers concerned him enough to make sure that people know - just because we're opening up more doesn't mean we can relax in how we interact with others.

This article first appeared on KOMO News.