April 28, 2021
A sore arm is the most common side effect of the Covid-19 vaccines, a new study has found. Other common side effects included headache and fatigue.
Revealed: The Most Common Side Effects Of The Covid Jab
Analysis of data from the Zoe Covid Symptom Study app reassuringly found fewer side effects in the general population with both the Pfizer and AstraZeneca vaccines than reported in clinical trials by their manufacturers.
One in four people experience “mild, short lived” side effects after receiving either vaccine, the study found. Most peaked within the first 24 hours following vaccination and usually lasted one to two days.The study by researchers from King’s College London, published in the Lancet Infectious Diseases journal, is the first large scale study to look at the prevalence of mild side effects in the UK’s vaccination programme.
The data came from 627,383 users of the Symptom Study app who self-reported ‘systemic’ and ‘local’ side effects within eight days of receiving one or two doses of the Pfizer vaccine or one dose of the AstraZeneca vaccine. Local effects refer to side effects at the site of injection, in the arm, including swelling, tenderness, redness, itching, warmth and swollen armpit glands, while systemic effects are those that occur elsewhere in the body, include headache, fatigue, chills and shivers, diarrhoea, fever, joint pain, muscle pain and nausea,
Local side effects were the most common, with 66.2% of respondents reporting one or more side effects at the site of where the jab had been administered – typically a tender arm. Meanwhile, one in four (25.4%) vaccinated people indicated suffering from one or more systemic side effects. The most reported systemic side effect was headache, followed by fatigue. 
Side effects were more likely after the first dose of the AstraZeneca jab – 13.5% of participants reported side effects after their first Pfizer dose, 22% after the second Pfizer dose and 33.7% after the first AstraZeneca dose, analysis found.
Participants who’d previously had Covid-19 were also more likely to have side effects after either vaccine. The research also identified that side effects were more common among people under 55 years of age and among Women.   Professor Tim Spector, lead scientist on the Zoe Covid Symptom Study app and professor of genetic epidemiology at King’s College London, hoped the data would help reassure people that the side effects are mostly mild.
He said: “The data should reassure many people that in the real world, after effects of the vaccine are usually mild and short-lived, especially in the over-50s who are most at risk of the infection.”In clinical trials of the Pfizer vaccine, the most common side effects were pain at the injection site (71-83%), fatigue (34-47%) and headache (25-42%), however the real-world analysis found less than 30% of users complained of injection site pain and less than 10% of fatigue and headache after the first dose.Similarly, in trials for the AstraZeneca vaccine, systemic side effects were found in 88% of younger participants (18-55 years) after the first dose but this study found a significantly lower rate of 46.2% after the first dose.
The AstraZeneca vaccine recently came under scrutiny when countries stopped using it over fears it might be causing blood clots in some patients. While a link hasn’t been confirmed, as a safety precaution, those aged between 18-29 may be offered an alternative vaccine (either Pfizer or Moderna) instead.
But Dr Cristina Menni, first author of the Kings study, said: “Our results support the after effects safety of both vaccines with fewer side effects in the general population than reported in the Pfizer and AstraZeneca experimental trials and should help allay safety concerns of people willing to get vaccinated.”How to deal with vaccine side effectsIf you have mild side effects like aches, pains and fever, the NHS suggests taking a painkiller such as paracetamol. It’s quite common to get a mild fever after the jab which resolves itself in roughly 48 hours – if you have a fever for longer, or any other symptoms of the virus, consider getting a Covid-19 test.
People who experience any side effects, whether mild or more severe, can report these on the Yellow Card website to help inform vaccine safety.
As a precaution, people should seek urgent medical assistance if they have the following symptoms after the AstraZeneca vaccine: shortness of breath, chest pain, swelling in your leg, persistent abdominal pain, neurological symptoms including severe and persistent headaches or blurred vision, and tiny blood spots under the skin beyond the site of injection.
If you have other symptoms that become worse or start to cause concern, you should seek medical assistance by calling 111 or your GP practice. In an emergency, phone 999.Related...Feeling Rough After The Covid Jab? Here's What You Need To KnowCovid Jab Side Effects Are 'Normal', Say GPs. But Here's When To Seek Help11 Extraordinary Photos That Show The Vaccine Programme In ProgressI'm Pregnant, Should I Have The AstraZeneca Jab?Should You Take Aspirin Before The Covid Jab? We Ask Experts
Related Stories
Latest News
Top news around the world
Coronavirus Disease

Coronavirus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus.

Most people infected with the COVID-19 virus will experience mild to moderate respiratory illness and recover without requiring special treatment. Older people, and those with underlying medical problems like cardiovascular disease, diabetes, chronic respiratory disease, and cancer are more likely to develop serious illness.

Around the World

Celebrity News

> Latest News in Media

Watch It
Jack Harlow on How Reading Harry Potter Made Him the Competitive Rapper He Is Today
December 04, 2021
ju2mg5V3844
Chloe Bailey Delivers Touching Tribute to Friend Lil Nas X At Variety Hitmakers
December 04, 2021
lyutDnTd1oQ
Avril Lavigne Presents Olivia Rodrigo With Songwriter of the Year Award: ‘Her Songs Are Her Truth’
December 04, 2021
2yEAVymJVjw
JoJo Siwa's Most Daring Look Yet at 2021 iHeartRadio's Jingle Ball | E! News
December 04, 2021
ukOgRIas5x4
"HSM" Star Monique Coleman Talks Corbin Bleu's Help Through Miscarriage | E! News
December 04, 2021
47JoF46KaFs
Did Kim Kardashian Throw Shade at Larsa Pippen? | E! News
December 04, 2021
JBDObC7HnN0
Adele on why she doesn’t watch ‘Housewives’ | Page Six
December 03, 2021
FACDy_rLto0
Tristan Thompson has another baby mama!? | Page Six
December 03, 2021
GQr2HHPoGSs
Heather's brings the drama on 'RHOC' & more on Virtual Reali-tea | Page Six Celebrity News
December 03, 2021
8d1EEHFlqd4
Farrah Abraham Teases 'Teen Mom: Family Reunion,' Promises Cat Fights
December 05, 2021
FzKjn727VQc
Cardi likes to party. #cardib #miami #tmz
December 05, 2021
OhCuvygeO48
Cardi B Dances at Art Basel Party in Miami Beach
December 05, 2021
J5a76Dp2nUs
TV Schedule
Late Night Show
Watch the latest shows of U.S. top comedians

Sports

Latest sport results, news, videos, interviews and comments
Latest Events
19
Nov
ASIAN CHAMPIONS LEAGUE: Group H
Sydney FC - Shanghai SIPG
17
Nov
UEFA NATIONS LEAGUE A: Group Stage
Spain - Germany
14
Nov
UEFA NATIONS LEAGUE A: Group Stage
Germany - Ukraine
08
Nov
ENGLAND: Premier League
Manchester City - Liverpool
08
Nov
ENGLAND: Premier League
Arsenal - Aston Villa
08
Nov
SPAIN: La Liga
Valencia - Real Madrid
08
Nov
ITALY: Serie A
AC Milan - Verona
08
Nov
ENGLAND: Premier League
West Bromwich Albion - Tottenham Hotspur
08
Nov
ITALY: Serie A
Bologna - Napoli
08
Nov
ITALY: Serie A
Genoa - Roma
08
Nov
ITALY: Serie A
Atalanta - Inter Milan
08
Nov
ITALY: Serie A
Lazio - Juventus
08
Nov
GERMANY: Bundesliga
Bayer Leverkusen - Borussia Monchengladbach
08
Nov
ENGLAND: Premier League
Leicester City - Wolves
08
Nov
GERMANY: Bundesliga
Wolfsburg - Hoffenheim
08
Nov
SPAIN: La Liga
Real Valladolid - Athletic Bilbao
08
Nov
SPAIN: La Liga
Levante - Alaves
08
Nov
SPAIN: La Liga
Real Sociedad - Granada CF
08
Nov
ITALY: Serie A
Torino - Crotone
08
Nov
SPAIN: La Liga
Getafe - Villarreal
07
Nov
GERMANY: Bundesliga
Borussia Dortmund - Bayern Munich
07
Nov
ENGLAND: Premier League
Everton - Manchester United
07
Nov
ENGLAND: Premier League
Chelsea - Sheffield United
07
Nov
SPAIN: La Liga
Atletico Madrid - Cadiz
07
Nov
SPAIN: La Liga
Barcelona - Real Betis
07
Nov
GERMANY: Bundesliga
Augsburg - Hertha Berlin
07
Nov
GERMANY: Bundesliga
Stuttgart - Eintracht Frankfurt
07
Nov
GERMANY: Bundesliga
RB Leipzig - SC Freiburg
07
Nov
ENGLAND: Championship
Rotherham - Preston NE
07
Nov
ITALY: Serie A
Parma - Fiorentina
07
Nov
ENGLAND: Championship
Watford - Coventry
07
Nov
ENGLAND: Championship
Norwich City - Swansea City
07
Nov
ENGLAND: Championship
Blackburn - QPR
07
Nov
ENGLAND: Championship
Derby County - Barnsley
07
Nov
ENGLAND: Championship
Huddersfield - Luton
07
Nov
ENGLAND: Championship
Nottingham Forest - Wycombe Wanderers
07
Nov
ENGLAND: Premier League
West Ham United - Fulham
07
Nov
ENGLAND: Championship
Sheffield Wednesday - Millwall
07
Nov
ENGLAND: Championship
Brentford - Middlesbrough
07
Nov
ENGLAND: Championship
Birmingham - Bournemouth
07
Nov
SPAIN: La Liga
Sevilla - Osasuna
07
Nov
ITALY: Serie A
Benevento - Spezia
07
Nov
ENGLAND: Premier League
Crystal Palace - Leeds
04
Nov
CHAMPIONS LEAGUE: Group stage, Group G
Ferencvaros - Juventus
04
Nov
CHAMPIONS LEAGUE: Group stage, Group G
Barcelona - Dynamo K.
03
Nov
CHAMPIONS LEAGUE: Group stage, Group A
Salzburg - Bayern Munich
03
Nov
CHAMPIONS LEAGUE: Group stage, Group D
Atalanta - Liverpool
Find us on Instagram
at @feedimo to stay up to date with the latest.
Featured Video You Might Like
zWJ3MxW_HWA L1eLanNeZKg i1XRgbyUtOo -g9Qziqbif8 0vmRhiLHE2U JFCZUoa6MYE UfN5PCF5EUo 2PV55f3-UAg W3y9zuI_F64 -7qCxIccihU pQ9gcOoH9R8 g5MRDEXRk4k
Copyright © 2020 Feedimo. All Rights Reserved.