" Most years, the terms “flu season” and “flu shot” are viewed as a pesky seasonal rite of passage, a nuisance, another thing on your to-do list. But this year, the virulent H3N2 virus — which has been circulating for 50 years and dubbed the “Hong Kong flu” — is getting peoples’ attention. The 2017–2018 flu season epidemic is expected to kill more than 50,000 people 1 year or older, many of whom appeared healthy “just ...