quadrivalent

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. (Photo by Tim Boyle/Getty Images)

Some Flu Vaccines Promise More Protection Than Others

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.

09/02/2013

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