More of us have received flu shots than last year.

That’s good news, experts say, but it’s not enough.

The Centers for Disease Control and Prevention in Atlanta said 45% of adults and 46% of children received the vaccine.

That’s up from 39% of children and adults last year.

The number is lower than medical experts would like.

Everyone over 6 months should get the shot, they say.

“It takes 10 days for protection to build up to maximum in your body,” said Dr. William Schaffner, an infectious disease specialist.

“Influenza will be wherever you are in your community. Someone has flu today that could be transmitted to you tomorrow.”

The flu season runs until May.

Every year, up to 20% of us will get the flu, according to the CDC.

Last year, 900,000 people ended up in the hospital and 80,000 died – of them a record 180 children.

The CDC reports 78 confirmed flu deaths so far this year.

Doctors stress that it isn’t too late, especially if you have a child, are an older adult with a weak immune system or are pregnant.