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Saturday, August 30, 2014
Can Vaccination Affect Blood Test Results?
Yesterday I gave some blood in order to have a scheduled CBC. Three days before the blood draw I had the H1N1 vaccine. Can this small blood loss affect the efficacy of the vaccine in any way?
Having a CBC will not affect the H1N1 vaccine efficacy.
John Andrews, MD, MPH
Assistant Senior Vice President Medical Center
Director University Health Services
University of Cincinnati