London Daily

Focus on the big picture.
Monday, Aug 25, 2025

Sweden, Denmark pause Moderna COVID-19 vaccine for younger age groups

Sweden, Denmark pause Moderna COVID-19 vaccine for younger age groups

Sweden and Denmark said on Wednesday they are pausing the use of Moderna's COVID-19 vaccine for younger age groups after reports of possible rare cardiovascular side effects.
The Swedish health agency said it would pause using the shot for people born in 1991 and later as data pointed to an increase of myocarditis and pericarditis among youths and young adults that had been vaccinated. Those conditions involve an inflammation of the heart or its lining.

"The connection is especially clear when it comes to Moderna's vaccine Spikevax, especially after the second dose," the health agency said, adding the risk of being affected was very small.

Shares of Moderna fell 4.9%, or $16.08, to $316.11 in afternoon trading.

A Moderna spokesperson said in an email the company was aware of the decisions by regulators in Denmark and Sweden to pause the use of its vaccine in younger individuals because of the rare risk of myocarditis and or pericarditis.

"These are typically mild cases and individuals tend to recover within a short time following standard treatment and rest. The risk of myocarditis is substantially increased for those who contract COVID-19, and vaccination is the best way to protect against this."

According to one U.S. study that has yet to undergo peer review young males under 20 are up to six times more likely to develop myocarditis after contracting COVID-19 than those who have been vaccinated.

Denmark said that, while it used the Pfizer/BioNTech vaccine as its main option for people aged 12-17 years, it had decided to pause giving the Moderna vaccine to people below 18 according to a "precautionary principle".

"In the preliminary data ... there is a suspicion of an increased risk of heart inflammation, when vaccinated with Moderna," the Danish Health Authority said in a statement.

It referred to data from a yet unpublished Nordic study, which would now be sent to the European Medicines Agency (EMA) for further assessment. Final data was expected within a month, it added.

Sweden and Denmark said they now recommended the Comirnaty vaccine, from Pfizer/BioNTech (PFE.N), instead.

The Danish Health Authority said it had made the decision even as "heart inflammation is an extremely rare side effect that often has a mild course and goes away on its own".

The EMA's safety committee concluded in July that inflammatory heart conditions can occur in very rare cases following vaccination with Comirnaty or Spikevax, more often in younger men after the second dose. read more

The benefits of shots based on so-called mRNA technology used by both Moderna and Pfizer-BioNTech in preventing COVID-19 continue to outweigh the risks, regulators in the United States, EU and the World Health Organization have said.

Data suggests reported cases of rare heart inflammation are relatively higher after Moderna's vaccine compared with the Pfizer/BioNTech shots, Canadian health officials said last week. read more

Although both vaccines are based on mRNA technology, the Pfizer shot contains 30 micrograms of vaccine per dose compared with 100 micrograms in the Moderna vaccine.

Data from one of two U.S. vaccine safety monitoring databases has also suggested that Moderna's vaccine may carry a higher risk of myocarditis among young people.

The vaccine is not approved for people under age 18 in the United States.

Norway already recommends the Cominarty vaccine to minors and said on Wednesday that it was reiterating this.

"Men under the age of 30 should also consider choosing Cominarty when they get vaccinated," Geir Bukholm, head of infection control at the Norwegian Institute of Public Health, said in a statement.

A Finnish health official said Finland expected to publish a decision on Thursday.

The EMA approved the use of Comirnaty in May, while Spikevax was given the nod for children over 12 in July.
Newsletter

Related Articles

0:00
0:00
Close
Vietnam Evacuates Hundreds of Thousands as Typhoon Kajiki Strikes; China’s Sanya Shuts Down
UK Government Delays Decision on China’s Proposed London Embassy Amid Concerns Over Redacted Plans
A 150-Year Tradition to Be Abolished? Uproar Over the Popular Central Park Attraction
A new faith called Robotheism claims artificial intelligence isn’t just smart but actually God itself
Deputy Prime Minister Angela Rayner Purchases Third Property Amid Housing Tax Reforms Debate
HSBC Switzerland Ends Relationships with Over 1,000 Clients from Saudi Arabia, Lebanon, Qatar, and Egypt
Sharia Law Made Legally Binding in Austria Despite Warnings Over 'Incompatible' Values
Italian Facebook Group Sharing Intimate Images Without Consent Shut Down Amid Police Investigation
Dutch Foreign Minister Resigns Amid Deadlock Over Israel Sanctions
Trump and Allies Send Messages of Support to Ukraine on Independence Day Amid Ongoing Conflict
China Reels as Telegram Chat Group Shares Hidden-Camera Footage of Women and Children
Sam Nicoresti becomes first transgender comedian to win Edinburgh Comedy Award
Builders uncover historic human remains in Lancashire house renovation
Australia Wants to Tax Your Empty Bedrooms
MotoGP Cameraman Narrowly Avoids Pedro Acosta Crash at Hungarian Grand Prix
FBI Investigates John Bolton Over Classified Documents in High-Profile Raids
Report reveals OpenAI pitched national ChatGPT Plus subscription to UK ministers
Labour set to freeze income tax thresholds in long-term 'stealth' tax raid
Coca‑Cola explores sale of Costa coffee chain
Trial hears dog walker was chased and fatally stabbed by trio
Restaurateur resigns from government hospitality council over tax criticism
Spanish City funfair shut after serious ride injury
Suspected arson at Ilford restaurant leaves three in critical condition
Tottenham beat Manchester City to go top of Premier League
Bank holiday heatwave to hit 30°C before remnants of Hurricane Erin arrive
UK to deploy immigration advisers to West Africa to block fake visas
Nurse who raped woman continued working for a year despite police alert
Drought forces closures of England’s canal routes, canceling boat holidays
Sweet tooth scents: food-inspired perfumes surge as weight-loss drugs suppress appetites
Experts warn Britain dangerously reliant on imported food
Family of Notting Hill Carnival murder victim call event unmanageable
Bunkers, Billions and Apocalypse: The Secret Compounds of Zuckerberg and the Tech Giants
Ukraine Declares De Facto War on Hungary and Slovakia with Terror Drone Strikes on Their Gas Lifeline
Animated K-pop Musical ‘KPop Demon Hunters’ Becomes Netflix’s Most-Watched Original Animated Film
New York Appeals Court Voids Nearly $500 Million Civil Fraud Penalty Against Trump While Upholding Fraud Liability
Elon Musk tweeted, “Europe is dying”
Far-Right Activist Convicted of Incitement Changes Gender and Demands: "Send Me to a Women’s Prison" | The Storm in Germany
Hungary Criticizes Ukraine: "Violating Our Sovereignty"
Will this be the first country to return to negative interest rates?
Child-free hotels spark controversy
North Korea is where this 95-year-old wants to die. South Korea won’t let him go. Is this our ally or a human rights enemy?
Hong Kong Launches Regulatory Regime and Trials for HKD-Backed Stablecoins
China rehearses September 3 Victory Day parade as imagery points to ‘loyal wingman’ FH-97 family presence
Trump Called Viktor Orbán: "Why Are You Using the Veto"
Horror in the Skies: Plane Engine Exploded, Passengers Sent Farewell Messages
MSNBC Rebrands as MS NOW Amid Comcast’s Cable Spin-Off
AI in Policing: Draft One Helps Speed Up Reports but Raises Legal and Ethical Concerns
Shame in Norway: Crown Princess’s Son Accused of Four Rapes
Apple Begins Simultaneous iPhone 17 Production in India and China
A Robot to Give Birth: The Chinese Announcement That Shakes the World
×