No reaction to vaccine

[Alwaysready]

Has vaccine at 11am and had no reaction at all. Lots of colleagues had it in last few days and most seem to have had a reaction of some kind- at least a headache, some are more severe. I was prepared for some reaction but nothing. I've read a bit and seems that a reaction is your immune system fighting, so am I lucky no reaction or vaccine may not have worked ?

I had AstraZeneca one, just felt a bit sick later in the day. I wondered the same as you. I did find I felt a bit tired the following week for no reason though.

Lots of people didn’t have a reaction with Oxford Astra Zeneca.
They just don’t tend to come on here and say so !
My reaction started next morning when I got up.

@Brownteddybear from the Pfizer results at www.nejm.org/doi/10.1056/NEJMoa2034577

It reports on incidence of mild/moderate side-effects. The breakdown of injection site pain is approx:

20% - none reported
50% - mild
30% - moderate

Fewer had the systemic side effects that the OP is asking about. 59% reported fatigue, 52% reported a headache. That's after dose 2. Side effects were less frequent after dose 1, but the number isn't given. It splits roughly evenly between mild and moderate.

There's lots of information, including breakdown by age and side effect type, in that link. I have very much just given headline figures.

Vaccine efficacy in that trial was approx 90%. So there must have been some people in the 50% or so who got either no side effects after dose 1 or nothing more than a bit of injection site soreness who also got good protection.

Oxford shows a similar pattern. Let me know if you want me to dig out the numbers.

Bit of a sore arm but nothing dramatic almost 24 hr afterwards.....

[quote Motorina]@Brownteddybear from the Pfizer results at www.nejm.org/doi/10.1056/NEJMoa2034577

It reports on incidence of mild/moderate side-effects. The breakdown of injection site pain is approx:

20% - none reported
50% - mild
30% - moderate

Fewer had the systemic side effects that the OP is asking about. 59% reported fatigue, 52% reported a headache. That's after dose 2. Side effects were less frequent after dose 1, but the number isn't given. It splits roughly evenly between mild and moderate.

There's lots of information, including breakdown by age and side effect type, in that link. I have very much just given headline figures.

Vaccine efficacy in that trial was approx 90%. So there must have been some people in the 50% or so who got either no side effects after dose 1 or nothing more than a bit of injection site soreness who also got good protection.

Oxford shows a similar pattern. Let me know if you want me to dig out the numbers.[/quote]
Thanks. Do you have the age groups to hand?

I had no reaction other than a sore arm. I have auto immune illness and am 60. All the young healthy people know had a reaction- fever/ chills. As someone who suffers chronic pain and poor health I wondered whether it meant I was less protected.