don't worry about it. it is basically the flu. Don't wear masks in public; only in Asia, Italy, and Iran you may want to do that. 9 deaths in Washington state, but... all people with underlying health conditions. Those only at serious risk of dying are old people and already really sick people. People my age it will just be a common cold or a little worse than one...
The case fatality rate (SARS-2 is 10-30 times higher than the flu) is only one element that contributes to the severity of an epidemic. The basic reproduction factor of SARS-2 is 4.7-7 compared to 1.4 for seasonal flu. You will never see seasonal flu overfill hospitals and depopulate the labor force the way SARS-2 is doing it, because SARS-2 spreads remarkably efficiently, leading to a lot of active cases in one period of time. People don't get the flu all at the same time to the extent that they all get SARS-2 at the same time. A lot of active cases at one time = overflown hospitals, absent labor force, economic depression. Overflown hospitals and weakened immune systems due to viral infection put otherwise healthy people at risk of severe complications, secondary infections.