Detailed text transcripts for TV channel - FOXNEWS - 20130903:15:54:00
>> it's not too early. the flu season starts in january through february and can last right through to may. you want to build your body's immunity up. when you get the shot, you're not protected immediately. it takes a good two weeks. jenna: we're hearing about the new shots, defending against four strains, not three. how much better are the new shots? >> they haven't come out with a determination on that yet. if you're stimulating your immune system with more strains of the flu, then obviously that should offer you better protection. every year the flu virus that's more virulent changes. jenn...