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Some flu vaccines promise a little more protection

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WASHINGTON (AP) — Flu vaccination is no longer merely a choice between a jab in the arm or a squirt in the nose. This fall, some brands promise a little extra protection. For the first time, certain vaccines will guard against four strains of flu rather than the usual three. Called quadrivalent vaccines, these brands may prove more popular for children than their parents. That's because kids...

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