Thursday with aaron. Now im here on saturday with chloe. Reporter a typical flu season lasts about three months, meaning isnt even the halfway mark. And medical experts say theres still time to get the flu shot, but it doesnt provide protection for about two weeks. It prevents complications, pneumonia, hospitalization and hello, death. Reporter from Washington State to boston, people are heeding the advice and getting the flu shot. Weve given about 400 flu shots already this morning. Reporter the last line of defense in an epic flu season thats still going strong. Brian mooar, nbc news. Here in the bay area, people are also having a hard time finding flu shots. There are shortages at some locations. Cvs pharmacy says, quote, due to high demand caused by the early outbreak of influenza, some of our locations may experience intermittent temporary shortages of flu vaccine, but we still have vaccine in stock. And a local pharmacist said he ran out on wednesday, has 24 people on the wait li