The CDC has identified it as a new strain from Australia, hence no immunity to it. In BC, they are saying it is the worst since the 2006-2007 season which again was thanks to a new strain.

Handwashing isn't a guarantee but it goes a long way to helping stop or stall the spread. So keep your hands clean, maybe eat at your home instead of restaurants or other peoples homes and your chances of catching it will go way down.