Dr. Grant Colfax, the San Francisco's public health director who oversaw the city's responses to the COVID-19 pandemic and fentanyl crisis, announced his resignation on Thursday.

San Francisco’s public health director, who oversaw the city’s responses to the COVID-19 pandemic and fentanyl crisis, announced his resignation this week. Dr. Grant Colfax is stepping down after spending nearly six years as the city’s leading health official.

Dr. Grant Colfax, director of the San Francisco Department of Public Health, speaks at a news conference where Mayor London Breed announces a public health order that requires res