This new year is arriving with a new wave of flu cases.
Health experts say you still have time to get your flu vaccine before the spread of the virus peaks in Northern California.
New this year, the Centers for Disease Control and Prevention recommends avoiding the nasal spray vaccine, and suggest sticking to the shot. Flu shots have been updated to better match the circulating viruses.
According to the CDC, it takes about two weeks after the shot for antibodies to develop in your body to fight against flu.
As of last week, California was one of 21 states already experiencing high cases of the virus. Children, pregnant women and the elderly are the most vulnerable to falling ill to the flu.