More than a third ‘suffer covid vaccine side effects’ and reaction ‘more likely’ if you have had the virus – study
new study suggests more than a third of people who receive their first dose of the coronavirus vaccine report some side effects – and a more frequent reaction in people who have had Covid “could be good news”.
Most of the side effects with the first dose were mild, and included pain or swelling around the site of the injection.
The data from the study suggests people who have previously had Covid-19 are almost twice as likely to experience one or more mild whole body (systemic) side effects, compared to those who have not had the virus (33% vs 19%) from a Pfizer/BioNTech vaccine dose.
Tim Spector, lead scientist on the study and professor of genetic epidemiology at King’s College London, said: “This data set is a unique look at those who have been vaccinated in the real world outside trials, and so far the post-vaccine effects we see are mild and in the minority of people.
WEST END FINAL
Essential news, in your inbox 4pm dailySign up
Already have an account? Log in here
“It’s interesting to see that those with previous Covid are more likely to experience these mild after effects than naive subjects.
“This could be good news, as a larger response like this suggests that those getting a first dose after having had Covid are generating a stronger immune reaction and may get greater protection from just a single shot of the vaccine.”https://d-838864871383513321.ampproject.net/2101230412005/frame.html
Most mild whole body (systemic) side effects appeared in the first two days after the vaccination and only 3% of people have any after effects beyond three days.
The figures, based on a sub-sample of almost 40,000 vaccine doses, suggest that 37% of people experienced some local side effects after the first dose, and 45% after the second.https://d-838864871383513321.ampproject.net/2101230412005/frame.html
While 14% of people reported at least one whole body side effect within seven days from the first dose compared to 22% from the second dose, possibly indicating a stronger immune response after the second dose.
The data found that 13% of vaccinated men, and 19% of vaccinated women, reported at least one systemic side effect within seven days.
- Covid vaccine sceptics will bitterly regret not having the jab when offered, warns scientist
- One in five adults in UK have received first dose of Covid vaccine, says Matt Hancock
Under 55s were more likely to experience whole body side effects than those over 55s (21% vs 14%).
This response can feel like some of the symptoms when the body is fighting off a real infection, including headaches, fever, chills or shivers, tiredness (fatigue), muscle or joint pains, diarrhoea and feeling sick (nausea).
Experts say a stronger response may indicate evidence of an increased immune response.