Napa County officials announce ninth confirmed case

This scanning electron microscope image shows SARS-CoV-2 (orange) — also known as 2019-nCoV, the virus that causes COVID-19. (National Institute of Allergy and Infectious Diseases-Rocky Mountain Laboratories, NIH)

Napa County has confirmed its ninth case of novel coronavirus, officials announced Friday evening. 

"The patient is in St. Helena and has a direct relationship with a previously confirmed case," the county said in an announcement. "Isolation and quarantine orders have been served and Napa County Public Health is conducting their investigation."

The county confirmed its first case last Sunday.