Data is a precious thing and will last longer than the systems themselves.

– Tim Berners-Lee

Introduction

Our analysis of the Medical & Healthcare products Regulation Agency (MHRA) Yellow Card Scheme for COVID-19 vaccines uses the publicly available reports that are released by the MHRA.  The MHRA has changed the format and frequency of reporting several times.

Due to the limitations of the data, we have deliberately held back from drawing conclusions based on the data we have.  Instead, we aim to provide insights into what we do know so that we, and you, can ask more meaningful questions of the MHRA, the government, vaccine manufacturers – and your own healthcare providers.

In January 2023, the MHRA revised the format of the Summary of Yellow Card reporting, to focus on the COVID-19 vaccines administered from the beginning of the Autumn 2022 booster campaign. Previous and known information on these vaccines will remain available as a record only and can be viewed here.

NOVEMBER 2023 UPDATE

A new report has been released which covers the period from 22 February to 25 October 2023 (8 months). This report no longer tells us the total number of vaccinations administered since the beginning of the rollout in Dec 2020. Therefore our vaccine related charts below use data to February 2023.

Of interest in the latest report is that since February 2023 there have been 425 new types of reaction (new ailments) reported including:

  • 1922 Brain fog
  • 90 Lactation insufficiency
  • 63 Graves disease (a thyroid autoimmune disease)
  • 34 Dilated cardio-myopathy (including 1 fatality)
  • 5 Abnormal menstrual clots
  • 3 Glioblastoma multiforme (fast growing brain tumour)
  • 3 Lymphomatoid papulosis (a rare form of T-cell lymphoma characterised by crops of recurrent self-healing papules)

Also of note is that for several classes of fatality, the totals reported as at October are lower than those reported in the previous report. These reductions add up to 565, however it is not known whether the reductions are because of reclassification or clerical error. This is not the first time we have encountered this phenomenon and there has been no explanation provided by MHRA.

What We Do Know

  • How many 1st, 2nd & 3rd/booster doses of each vaccine brand have been administered (up to Feb 2023 only)
  • How many adverse reactions have been reported
  • How many deaths have been reported
  • How each reaction & death has been classified in fine detail
  • Limited demographic information (added Nov 23)
  • There have been more reactions & fatalities reported for COVID-19 vaccines than any other vaccine since the Yellow Card system started

What We Don’t Know

  • Whether a death or reaction reported was caused by the vaccine or a coincidence
  • Whether a death or reaction report relates to a 1st, 2nd or booster dose
  • Time between dose and death or reaction
  • Time between death or reaction & reporting
  • Prior health status of the patient
  • If a patient has had multiple reactions
  • Patterns of combinations of reactions
  • How many deaths & reactions haven’t been reported
  • Whether vaccine mixing has taken place
  • If changes in storage guidance for vaccines have impacted reactions
  • Whether patients reporting adverse reactions had previously had or tested positive for COVID-19
  • Up to date doses totals by brand of vaccine
  • When the MHRA will release the next report

In early January 2023, MHRA reissued the data to 23/11/22 in a new format, claiming it was the same data, however we have compared the two datasets and found an additional 83,056 reactions and 2 deaths in the reissued reports. We have made the assumption that the reissued dataset is the more accurate and therefore all charts reflect these figures going forward.

Yellow Card Summary to 25th October 2023


Pfizer/ BioNTech
AstraZenecaModernaNovavaxUnspecifiedTotals
Rollout Start Date08/12/2004/01/2107/04/2103/02/22n/an/a
First Doses Administered*27.2 million24.9 million1.7 millionunknownn/a53.8 million
Second Doses Administered*25.0 million24.2 million1.6 millionunknownn/a50.8 million
Boosters Administered*44.6 million0.1 million22.6 million1,000n/a67.3 million
Adverse Reactions554,990933,236164,5023278,6641,661,719
Deaths9461,4171440882,595

New reactions this report = 20,362

* vaccine dose totals are to February 2023 only

New deaths this report = 136

Data Source: MHRA

* vaccine dose totals are to February 2023 only

Top 20 Adverse Reactions

PrintExcelCSVCopy

ConditionNo of ReactionsNo of Deaths
Headache130,9381
Fatigue94,4232
Pyrexia92,1401
Chills64,2170
Nausea58,0240
Pain in extremity46,5692
Myalgia45,9520
Dizziness43,6560
Arthralgia41,4880
Pain33,1990
Lymphadenopathy22,8960
Malaise22,3622
Rash21,7651
Vomiting20,5592
Dyspnoea20,4887
Pruritus20,1590
Diarrhoea19,0960
Paraesthesia17,9991
Chest pain17,9691
Palpitations17,6811

Top 20 Causes of Death

PrintExcelCSVCopy

ConditionNo of Deaths
Death (no further information available)651
Pulmonary embolism178
Myocardial infarction146
Cardiac arrest118
Cerebrovascular accident91
Cerebral haemorrhage89
Sudden death84
COVID-1977
Thrombosis62
Pneumonia59
Cerebral venous sinus thrombosis35
COVID-19 pneumonia31
Myocardial ischaemia31
Cardiac failure34
Sepsis29
Stillbirth27
Acute myocardial infarction22
Multiple organ dysfunction syndrome24
Haemorrhage intracranial23
Subarachnoid haemorrhage18
Haemorrhagic stroke18

REACTIONS & DEATHS BY TYPE (SOC)

PrintExcelCSVCopy

Type of Reaction (System Organ Class)ReactionsDeaths
Blood disorders30,23637
Cardiac disorders35,300489
Congenital disorders2946
Ear disorders21,8331
Endocrine disorders1,0951
Eye disorders27,1830
Gastrointestinal disorders148,49741
General disorders462,675812
Hepatic disorders1,00914
Immune system disorders7,4118
Infections41,083263
Injuries22,3196
Investigations22,0016
Metabolic disorders13,4986
Muscle & tissue disorders195,2056
Neoplasms1,20250
Nervous system disorders319,449413
Pregnancy conditions1,36531
Product Issues3791
Psychiatric disorders34,77110
Renal & urinary disorders5,19017
Reproductive & breast disorders61,9691
Respiratory disorders64,771250
Skin disorders113,3074
Social circumstances1,0161
Surgical & medical procedures2,7762
Vascular disorders25,864119

Further Research & Resources

MHRA Resources

The MHRA now provides interactive charts to allow the public to explore the Yellow card data in more depth for themselves. Unfortunately the MHRA persists in siloing each vaccine variation (brand/type) into its own dataset so exploring consolidated data or comparing brands remains a challenge. Not all variations have the same reporting options available either.

Read More – COVID-19 VACCINES Yellow CARD analysis

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