Among other reasons cited in this piece, there may be an economic reason more Americans get the flu shot: one in three U.S. workers gets no paid time off for illness. In general, Europeans have more generous sick leave.
Lisa Aliferis is the founding editor of KQED's State of Health blog. Since 2011, she's been writing stories and editing them for the site. Before taking up blogging, she toiled for many years producing health stories for television, including Dateline NBC and San Francisco's CBS affiliate, KPIX-TV. She also wrote up a handy guide to the Affordable Care Act, especially for Californians. You can follow her on Twitter: @laliferis