Ask Well: How Long Does a Flu Shot Last?

A flu shot’s ability to last depends on how powerfully an immune system reacts to it, experts say.    

Source: NYT - January 17, 2014 Category: Nutrition Authors: By DONALD G. MCNEIL JR. Tags: Ask Well Whooping Cough Measles Influenza Tetanus Featured Vaccination and Immunization Source Type: news