The inactivated virus in the jab causes your body to produce antibodies. It can't give you the flu or anything else because the virus is dead and so can't reproduce. However the body's antibody producing reaction can result in feeling a bit tired and achey or feverish.
Ah, ok.
I rarely have the jab even though i'm supposed to. The last time I had flu was the 1999/2000 winter. Me and all 3 kids caught it and spent pretty much the whole christmas huddled together on the sofa.
Agree with most on here. Flu is awful and the older one gets the longer it takes to recover. Jab every year for me although I did still have it even with the jab one year. Was probably a different strain I was told.
The inactivated virus in the jab causes your body to produce antibodies. It can't give you the flu or anything else because the virus is dead and so can't reproduce. However the body's antibody producing reaction can result in feeling a bit tired and achey or feverish.