Ethnic differences in inactivated influenza vaccine immunogenicity in UK Healthcare Workers: A two-year prospective longitudinal study.
OBJECTIVES Ethnic minority groups experience disproportionate influenza morbidity and mortality. Ethnic differences in response to the inactivated influenza vaccine (IIV) are not fully understood. We evaluated IIV serological response in UK healthcare workers (HCWs). METHODS We conducted a prospective cohort study of...