The colors of fall are taking over the Mill Valley Flower Shop where Blair Phillips is always trying to keep her staff safe.
"We're all fully vaccinated here, drivers and designers and set up people," said Phillips.
Pumpkins and cobweb decorations are making a comeback. But Marin County health officials say that's not the only thing. COVID may be ready to surge again, just in time for Halloween.
RELATED: Will we have a 5th COVID surge? Here's what doctors say
"People because of the weather will move indoors, it's a holiday targeting age group, 5-11 who remain unvaccinated," said Marin County Deputy Public Officer Dr. Lisa Santora.
Dr. Santora says Halloween parties and fall gatherings could bring a fifth COVID surge to a county where 90% of the population is vaccinated. But those who are not, still pose a risk to others.
"If we see more cases among unvaccinated we are at higher risk of having challenges to capacity at hospitals to meet the needs of our community," Santora added.
"I'm scared about trick-or-treating, it might trigger another spike," said parent Shiela Paugh from Sausalito.
RELATED: COVID-19 cases in children reach levels not seen since winter surge
Paugh is rethinking Halloween.
Mill Valley Peditrician Dr. Lisa Dana has her own concerns.
"Especially in our unvaccinated population, kids are trick-or-treating, masks come off, eating candy," said Dana.
Dr. Dana tells families to be cautious but don't stop living life, especially during a scary-fun time of year.
"It's important for all adults in a child's life to be vaccinated, it's a great way to keep a family safe," Dana added.
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