Flu vaccine administered in the morning four times more effective than later in the day

The results were announced by the University of Birmingham

Flu, vaccine, HSE, HPSC, GP consultation, cold and flu, at risk groups, Dr Darina O'Flanagan

Dr Tony O'Sullivan gives Donna Woods the seasonal flu injection at Irishtown and Ringsend Primary Care Team centre | Image: RollingNews.ie

A medical study has found Flu vaccines are more effective when given in the mornings.

Giving patients a vaccination between the hours of 9am and 11am boosted antibodies to four times the levels of those patients who had shots between 3pm and 5pm.

It is thought that the immune system is more active and responsive in the morning.

Dr Anna Phillips, the Principal Investigator of the study from the School of Sport, Exercise and Rehabilitation Sciences at the University of Birmingham told The Telegraph: “We know that there are fluctuations in immune responses throughout the day and wanted to examine whether this would extend to the antibody response to vaccination."

“Being able to see that morning vaccinations yield a more efficient response will not only help in strategies for flu vaccination, but might provide clues to improve vaccination strategies more generally.”