373
Participants
Start Date
October 2, 2017
Primary Completion Date
March 13, 2018
Study Completion Date
March 13, 2018
Fluenz Tetra (The two groups are defined by immunisation history, all receive the same intervention in the study)
live attenuated influenza vaccine (LAIV)
Gloucestershire primary care, Gloucester
Hertfordshire primary care, Hertford
Imperial Healthcare NHS Trust, London
Public Health England
OTHER_GOV