Question to the Department of Health and Social Care:
To ask the Secretary of State for Health and Social Care, what estimate his Department has made of the number of people who have contracted flu in winter 2017-18 after receiving the trivalent vaccine instead of the quadrivalent vaccine.
There has been no study undertaken on the estimate of the number of people who have contracted flu in winter 2017-18 after receiving the trivalent vaccine instead of the quadrivalent vaccine.