London Daily

Focus on the big picture.
Saturday, Mar 21, 2026

UK launches seven-vaccine trial to test Covid jab booster shots

UK launches seven-vaccine trial to test Covid jab booster shots

Thousands of volunteers in the UK will be given a third dose of a Covid-19 vaccine as part of a large trial to provide experts with more information about the impact of booster jabs, Health Secretary Matt Hancock has announced.
Launched on Wednesday, the Cov-Boost study will see seven of the world's main jabs trialled on 2,886 patients and participants at 18 National Health Service (NHS) sites across the country.

University Hospital Southampton NHS Foundation Trust will lead the study, which is backed by £19.3 million ($27.3 million) of taxpayers' money.

Adults aged 30 and over will start receiving their additional dose of a vaccine from June, with preliminary results of the study expected in September.

"We will do everything we can to future-proof this country from pandemics and other threats to our health security," Hancock said in a statement on the project.

The health secretary said the study was the "first in the world" to provide data on patients' immune responses to third doses of Covid-19 vaccines.

However, research on the impact of third doses is already underway, including a study by Pfizer to analyse the effects of its Covid-19 vaccine on emerging variants of the virus.

In February, the US pharmaceutical giant and its German partner BioNTech announced they were studying the safety and the level of immune response of a third dose of their jointly-developed Covid jab against variants of the virus.

Around the same time, Pfizer's fellow US Covid-19 vaccine maker Moderna also announced it had begun giving volunteers third doses of its jab to study its efficacy against variants.

Both vaccines are set to be included in the UK trial, alongside those made by Oxford-AstraZeneca, Novavax, Valneva, Johnson & Johnson and Curevac.

Each volunteer will receive one booster dose, which may be of a different vaccine to that which they received as their previous shot.

The Novavax, Valneva and Curevac jabs will also be trialled at half-doses to see if this offers adequate protection and if it relieves recipients of any of the common side effects of vaccination.

Participants will be monitored throughout the study for side effects and will have their blood taken at four intervals within 12 months of vaccination to measure their immune responses.
Newsletter

Related Articles

0:00
0:00
Close
Lord Walney Warns of Expanding Iranian Influence Networks Within the United Kingdom
Iranian National Among Two Arrested After Attempt to Access UK Nuclear Submarine Base
Deregulation, Artificial Intelligence, and Fraud Laws Reshape UK Financial Services Landscape
UK Considers Lower Speed Limits to Reduce Fuel Use Amid Escalating Energy Crisis
UK Borrowing Costs Surge to Post-Crisis High as Markets React to Inflation and War Risks
UK Government Prepares Emergency Economic Measures as Iran Conflict Fuels Financial Risks
Meningitis B Outbreak in the UK Raises Urgent Health Warnings as Cases Surge
Iran Issues Stark Warning to Britain Over US Base Access Amid Expanding Conflict
United Kingdom Authorizes US Strikes from British Bases as Iran Threatens Key Shipping Routes
Reform UK Suspends Scottish Candidate Following Financial Misconduct Allegations
Apple issues an unusual warning: this is how your iPhone can be hacked without you doing anything
UK and Nigeria Reach Agreement to Accelerate Return of Irregular Migrants
UK Sets New Aid Priorities Following Significant Budget Reductions
Cyprus President Urges Open Dialogue Over Future of British Sovereign Base Areas
Cyprus President Urges Open Dialogue Over Future of British Sovereign Base Areas
UK Plans 50% Steel Tariffs in Bold Move to Protect Domestic Industry
Iran Conflict Sends Shockwaves Through UK Economy as Energy Costs and Trade Risks Surge
UK Health Officials Warn Kent Meningitis Outbreak Still Active as Cases Continue to Rise
UK Climate Progress Faces Scrutiny Over Reliance on Carbon Accounting Methods
UK Deploys Advisers to United States to Shape Plan for Reopening Strait of Hormuz
Amazon Bets on AI-Driven Alexa Upgrade to Revive UK Smart Speaker Market
UK Abortion Law Changes Spark Strong Response from Church Leaders and Pro-Life Advocates
UK Abortion Law Changes Spark Strong Response from Church Leaders and Pro-Life Advocates
GB News Faces Regulatory Complaints Over On-Air Remarks on ‘Genocide’ Claims
UK Signals Expanded Support for Gulf Allies as Iranian Attacks Intensify Regional Threats
UK VAT Decision Opens Path for Potential Refunds to U.S. Biopharma Firms
UK and Canada Advance ‘Middle Power’ Strategy to Shape Global Influence Beyond Superpowers
Google Explores AI Opt-Out Features in Search to Address UK Regulatory Concerns
Google Explores AI Opt-Out Features in Search to Address UK Regulatory Concerns
UK Fuel Prices Poised to Surge as Global Tensions Drive Oil Market Volatility
UK Fuel Prices Poised to Surge as Global Tensions Drive Oil Market Volatility
UK Holds Back on Hormuz Escort Mission While Continuing Talks with Allies
TrumpRx Pricing Platform Faces Scrutiny as Some Medicines Remain Costlier Than in the UK
UK, Netherlands and Finland Explore Joint Defence Investment Bank to Boost Military Capability
Deadly Meningitis Outbreak in Kent Raises Alarm as Cases Surge and Emergency Response Expands
UK Security Adviser Viewed US-Iran Nuclear Deal as Within Reach Before Sudden Escalation
UK Prime Minister Urges Continued Focus on Ukraine Amid Escalating Iran Conflict
UK Introduces New Safeguards to Shield Lenders from Bank Run Risks
UK Promotional Products Market Surpasses £1.3 Billion as Demand Strengthens in 2025
Reeves Pushes for Deeper UK-EU Economic Ties to Revive Growth
UK Security Adviser Saw No Imminent Iranian Nuclear Threat Days Before War Erupted
France Signals Warm Welcome for UK Return to EU Single Market Amid Renewed Cooperation Talks
UK Defence Official Criticises Boeing Over Delays to E-7 Wedgetail Programme
UK Urged to Secure Quantum Talent as Minister Warns Against Repeating AI Setbacks
UK Mayors Set to Gain New Spending Powers Under Reeves’ Fiscal Devolution Plan
Western Allies Urge Restraint as Israel Weighs Expanded Ground Operation in Lebanon
Trump Warns NATO Faces ‘Very Bad’ Future Without Stronger Allied Support in Iran Conflict
UK Minister Says Britain Not Bound to Support Every Demand From U.S. President
Starmer Tells Trump Britain Will Not Be Drawn Into Wider Iran War
Starmer Tells Trump Britain Will Not Be Drawn Into Wider Iran War
×