San Francisco's mayor on Tuesday declared a local emergency to make it easier for the populous city and international travel hub to combat novel coronavirus if it comes -- even while stressing that it isn't there yet.
The announcement follows similar declarations in California's Santa Clara and San Diego counties. The move came as US health officials warned they expect to eventually see a continual spread of coronavirus in the United States.
Breed's declaration is effective immediately for seven days, though the board of supervisors will vote on its continuation March 3.