Marin County’s COVID-19 cases have returned to “low” levels following a surge in infections over the summer, health officials said.

Levels of community virus transmission monitored from wastewater across the county have subsided for the first time in nearly three months, the Marin Health and Human Services said in a news release Friday.

The COVID level is based on the extent of coronavirus detected in six wastewater collection sites in the county and the number of patients in Marin County hospitals who have tested positive for the respiratory disease, according to the health agency.

YouTube video
Marin County Public Health Officer Matt Willis provides an update on the fall COVID-19 vaccine. (Marin Health and Human Services/YouTube)

Although COVID infections have dwindled, Marin County health officials warned that in the past years, cases have risen during October.

Residents were advised to be vaccinated ahead of a potential winter surge.