The new strain seems to be more easily transmitted than the standard form of the virus, which means those who are exposed are more likely to become infected.
As long as humans encroach on nature, pandemics are inevitable — making it important to concentrate resources in areas where people and wildlife are linked.
With case numbers remaining high and ICU bed availability strained, San Francisco's stay-at-home order will be extended beyond Jan. 7, when it was scheduled to expire.
The uptick continues with 20 new local cases over the last week, as experts say January looks to be even worse than December due to holiday travel and gatherings.