Time for flu shots, and some may get a tiny needle

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WASHINGTON (AP) - It’s flu vaccine time again _ and some lucky shot-seekers will find that the needle has shrunk.

The first flu shot that works with a less-scary skin prick instead of an inch-long needle is hitting the market this fall. Sorry kids, this option so far is just for adults, and it’s so brand-new that it will take some searching to find a dose.

But there are plenty of the other varieties _ standard shots, a special high-dose shot for seniors and the needle-free squirt-in-the-nose option _ to go around. At least 166 million doses of flu vaccine are expected to be produced this year.

The big question is whether people will get it. Usually each year’s flu vaccine varies from the previous versions as different influenza strains emerge. This year, the vaccine’s a duplicate because the three flu strains that sickened people last winter still are circulating.

Scientific studies aren’t clear about how much a person’s immunity wanes over a year, although it varies by age and overall health. But federal health officials and the American Academy of Pediatrics weighed the evidence and say don’t skip this year’s vaccination _ it’s the only way to be sure your immune system remains revved enough for the best protection.

“You’re not going to be able to count on that vaccine protecting you throughout a second season,” says Dr. Lisa Grohskopf of the Centers for Disease Control and Prevention.

A yearly vaccination now is recommended for virtually everyone, except babies younger than 6 months and people with severe allergies to the eggs used to make it. Last year, 49 percent of children and 41 percent of adults were vaccinated.

Say you never catch the flu? You could be a carrier, unknowingly spreading the misery when you feel little more than a sniffle, says Dr. William Schaffner of Vanderbilt University, president of the National Foundation for Infectious Diseases.

“You should be vaccinated each and every year to ensure both you’re protected and you’re giving the maximum protection to people around you,” he says.

Here are some questions and answers about flu vaccinations:

Q: How does the new skin-deep vaccine work?

A: Sanofi Pasteur’s Fluzone Intradermal uses a needle less than a tenth of an inch long to inject vaccine just below the skin’s surface. This layer, called the dermis, is so rich in a certain type of immune cell that the new shot uses a lower dose of the same vaccine that’s in regular flu shots. Studies found it triggered as much protection as full-strength muscle shots _ although it did cause more skin reactions like redness, swelling and itching. There’s little data on pain perception.

But it’s only for 18- to 64-year-olds. It hasn’t been studied in children’s more-tender skin. Sanofi estimates it will sell less than 1 million doses this year while introducing the newly approved product to doctors, before a full market launch next flu season.

Q: What about the original ouchless flu vaccine, the nasal-spray version?

A: MedImmune’s FluMist is for a different age group, people ages 2 to 49 who are healthy, meaning no one with underlying health conditions or who is pregnant. Unlike flu shots that are made with killed flu virus, FluMist is made with live but weakened virus.

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Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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