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How effective is this year's flu vaccine?
How effective is the flu vaccine this year?
Flu vaccine effectiveness
CDC: This year's flu vaccine is only 10-33% effective
CDC Touts Effectiveness Of This Year's Flu Vaccine
FLU SHOT
Flu Shots Less Effective This Year
Flu Vaccine Effectiveness Varies by Ethnicity
How effective is the flu vaccine?
The flu vaccine: explained
This year's flu vaccine more effective for kids
Good Question: What is in the flu shot?
