London Daily

Focus on the big picture.
Saturday, Nov 22, 2025

Novavax spikes 76% after UK study shows its COVID-19 vaccine is 89% effective

Novavax spikes 76% after UK study shows its COVID-19 vaccine is 89% effective

Shares of Novavax soared more than 2,700% since the company advanced the development of its novel COVID-19 vaccine candidate in late February of 2020.
Novavax soared as much as 76% on Friday after a UK study on its COVID-19 vaccine candidate demonstrated 89% efficacy in preventing the virus.

In its UK trial with 15,000 participants, the vaccine prevented nine in ten cases, including against a new strain spreading in the country. Novavax observed 62 cases of COVID-19 in the study, with 56 in the placebo group, and six among the group that received the vaccine.

The vaccine did demonstrate clinical efficacy against both the UK and South Africa variant strains, but a separate trial in South Africa with 4,400 participants proved the vaccine was only 49% effective. That efficacy rose to 60% for the population within the study that did not have HIV, according to Novavax.

The company is continuing to gather data from its clinical trials and did not indicate if the results would be immediately submitted to the FDA for emergency use authorization.

Novavax also revealed that it is working on new constructs of its vaccine candidate that could be more effective against the mutating strains of COVID-19 found in different countries across the globe.

Shares of Novavax were initially up about 30% in pre-market trading on Friday, and got an extra boost after Johnson and Johnson said its single-dose COVID-19 vaccine candidate was less effective than Novavax's, with an efficacy rate of 66%.

Shares of Novavax have soared more than 2,700% since the biotech company advanced the development of its novel COVID-19 vaccine candidate in late February of 2020.

Novavax intends to submit its results to a peer reviewed journal, and despite the strong data, it could be months before the vaccine is available to the public.
Newsletter

Related Articles

0:00
0:00
Close
Maduro Tightens Security Measures as U.S. Strike Threat Intensifies
U.S. Envoys Deliver Ultimatum to Ukraine: Sign Peace Deal by Thursday or Risk Losing American Support
Zelenskyy Signals Progress Toward Ending the War: ‘One of the Hardest Moments in History’ (end of his business model?)
U.S. Issues Alert Declaring Venezuelan Airspace a Hazard Due to Escalating Security Conditions
The U.S. State Department Announces That Mass Migration Constitutes an Existential Threat to Western Civilization and Undermines the Stability of Key American Allies
Students Challenge AI-Driven Teaching at University of Staffordshire
Pikeville Medical Center Partners with UK’s Golisano Children’s Network to Expand Pediatric Care
Germany, France and UK Confirm Full Support for Ukraine in US-Backed Security Plan
UK Low-Traffic Neighbourhoods Face Rising Backlash as Pandemic Schemes Unravel
UK Records Coldest Night of Autumn as Sub-Zero Conditions Sweep the Country
UK at Risk of Losing International Doctors as Workforce Exodus Grows, Regulator Warns
ASU Launches ASU London, Extending Its Innovation Brand to the UK Education Market
UK Prime Minister Keir Starmer to Visit China in January as Diplomatic Reset Accelerates
Google Launches Voluntary Buyouts for UK Staff Amid AI-Driven Company Realignment
UK braces for freezing snap as snow and ice warnings escalate
Majority of UK Novelists Fear AI Could Displace Their Work, Cambridge Study Finds
UK's Carrier Strike Group Achieves Full Operational Capability During NATO Drill in Mediterranean
Trump and Mamdani to Meet at the White House: “The Communist Asked”
Nvidia Again Beats Forecasts, Shares Jump in After-Hours Trading
Wintry Conditions Persist Along UK Coasts After Up to Seven Centimetres of Snow
UK Inflation Eases to 3.6 % in October, Opening Door for Rate Cut
UK Accelerates Munitions Factory Build-Out to Reinforce Warfighting Readiness
UK Consumer Optimism Plunges Ahead of November Budget
A Decade of Innovation Stagnation at Apple: The Cook Era Critique
Caribbean Reparations Commission Seeks ‘Mutually Beneficial’ Justice from UK
EU Insists UK Must Contribute Financially for Access to Electricity Market and Broader Ties
UK to Outlaw Live-Event Ticket Resales Above Face Value
President Donald Trump Hosts Saudi Crown Prince Mohammed bin Salman at White House to Seal Major Defence and Investment Deals
German Entertainment Icons Alice and Ellen Kessler Die Together at Age 89
UK Unveils Sweeping Asylum Reforms with 20-Year Settlement Wait and Conditional Status
UK Orders Twitter Hacker to Repay £4.1 Million Following 2020 High-Profile Breach
Popeyes UK Eyes Century Mark as Fried-Chicken Chain Accelerates Roll-out
Two-thirds of UK nurses report working while unwell amid staffing crisis
Britain to Reform Human-Rights Laws in Sweeping Asylum Policy Overhaul
Nearly Half of Job Losses Under Labour Government Affect UK Youth
UK Chancellor Reeves Eyes High-Value Home Levy in Budget to Raise Tens of Billions
UK Urges Poland to Choose Swedish Submarines in Multi-Billion € Defence Bid
US Border Czar Tom Homan Declares UK No Longer a ‘Friend’ Amid Intelligence Rift
UK Announces Reversal of Income Tax Hike Plans Ahead of Budget
Starmer Faces Mounting Turmoil as Leaked Briefings Ignite Leadership Plot Rumours
UK Commentator Sami Hamdi Returns Home After US Visa Revocation and Detention
UK Eyes Denmark-Style Asylum Rules in Major Migration Shift
UK Signals Intelligence Freeze Amid US Maritime Drug-Strike Campaign
TikTok Awards UK & Ireland 2025 Celebrates Top Creators Including Max Klymenko as Creator of the Year
UK Growth Nearly Stalls at 0.1% in Q3 as Cyberattack Halts Car Production
Apple Denied Permission to Appeal UK App Store Ruling, Faces Over £1bn Liability
UK Chooses Wylfa for First Small Modular Reactors, Drawing Sharp U.S. Objection
Starmer Faces Growing Labour Backlash as Briefing Sparks Authority Crisis
Reform UK Withdraws from BBC Documentary Amid Legal Storm Over Trump Speech Edit
UK Prime Minister Attempts to Reassert Authority Amid Internal Labour Leadership Drama
×