독감 백신 접종 반대 외치는 미국 보스턴 시위대 Maria Harvey and her sister Ashley Makridakis hold up signs during a protest against mandatory flu vaccinations, outside the Massachusetts State House, Sunday, Aug. 30, 2020, in Boston. Public health authorities say flu shots are very important this year to avoid overburdening the health system. amid the coronavirus pandemic. (Nancy Lane/Boston Herald via AP) ⓒ연합뉴스 2021.02.10