Your odds of getting this virus? Tiny. Super tiny. Want to do something anyway? Here you go: forget masks (they don't filter viruses out). Wash your hands for at least 30sec and do it frequently. Wash your face often, but only after you've washed your hands. Otherwise, don't touch your face. Don't reuse dishcloths or washcloths (flannels, for my UK friends). Want to take a low power vitamin, some elderberry chews, probiotics? Okay, but don't overdo it -- that gets expensive and you can overdose on vitamins. There's no proof that will help but, seriously, you likely don't need help.
Fist bump or nod. You don't know where each other have been so stop with the handshakes. Antibacterial gel is a good stopgap but will never be as good as washing your hands with soap and hot water. Besides, you're using it wrong: you are supposed to be somewhat generous with it, rub it in and over every bit of your hands, and let it dry. Most move on before drying and didn't cover their hands in the first place. You are not rubbing magic on yourself - it takes several seconds for the alcohol to complete killing the stuff you want killed. Oh, and don't pay more for antibacterial soap. It is no better - zero -- than regular soap at killing stuff.
Why the panic? Our media need to terrify you so they can sell commercials. We didn't have have 24/7 news and websites just 25 or so years ago. Now, they have to keep you terrified and transfixed so they can sell clicks and eyeballs.
Some of you have had lots of scary viruses - just like this one - and got over it, thinking you just had a cold because there are lots of viruses that have those same mild symptoms. If you are elderly AND have lung issues, I get it: go ahead and take some precautions. But don't panic and don't isolate yourself. My buddies in the WHO and CDC say the virus is showing signs of stalling already. Certainly, the number of new cases and deaths has slowed down dramatically in the last three days. So far, children under 15 don't seem to be effected. Not sure why and that might change if China lets us know what they are experiencing (there is a government lockdown at present).
How did the virus arise so suddenly? China is a hotspot for new viruses for three main reasons: 1) streets are often covered with feces and urine as well as sputum (they blow their nose on the sidewalk and hock one up there, too); 2) they eat animals that carry diseases that can migrate from species to species (bats, mice, cats, etc. As in mad cow disease (bovine encephalopathy), there are some animals we do not eat and there are some animal bits we do not eat; and 3) a complete absence of quality healthcare for the average citizen. Remember: this is the country that birthed SARS and MERS, viruses that were MANY times more dangerous than coronavirus seems to be.
[remember: I'm a neuroscience guy, not a virologist...But I have lots of friends and we talk]