London Daily

Focus on the big picture.
Friday, Jul 04, 2025

FDA investigating allergic reactions to Pfizer vaccine reported in multiple states

FDA investigating allergic reactions to Pfizer vaccine reported in multiple states

The Food and Drug Administration (FDA) is investigating allergic reactions to the Pfizer coronavirus vaccine that were reported in multiple states after it began to be administered this week.
Peter Marks, director of the FDA’s Center for Biologics Evaluation and Research, told reporters late Friday that the reactions had been reported in more than one state besides Alaska and that the FDA is probing five reactions.

“We are working hand in hand with the Centers for Disease Control and Prevention (CDC), and we’ve actually been working closely with our United Kingdom colleagues, who of course reported the allergic reaction. I think we’ll be looking at all the data we can from each of these reactions to sort out exactly what happened, and we’ll also be looking to try to understand which component of the vaccine might be helping to produce them,” Marks said.

“I think we have at this point the right ... mitigation strategy with the availability of treatment for a severe allergic reaction being at the ready, and we’ll continue to monitor it very closely,” he added.

Marks said the FDA was not certain what caused the reactions but indicated a chemical called polyethylene glycol, which is present in the vaccines produced by Pfizer and BioNTech as well as by Moderna “could be the culprit.” He added that the reaction some people have experienced could be more common than once thought.

“We’ll obviously be monitoring very closely what’s going on. We’re working very closely with the CDC on these, and there have been meetings between the CDC and FDA pretty much every day this week making sure we’re keeping very close track of what’s going on,” he said.

The reports of allergic reactions in Alaska follow two similar cases reported last week in Britain, the first nation to approve Pfizer’s vaccine.

The FDA’s current guidance says that most Americans with allergies should be cleared to take the vaccine but that people who’ve had severe reactions to other vaccines should not get vaccinated. It also said Friday that people with a history of severe allergic reactions to any components of the Moderna shot should avoid getting that vaccine.

“FDA takes very seriously the safety of the medical products that we authorize and approve, and certainly in a vaccine setting, it’s one of the reasons Dr. Marks and his team, in collaboration with the CDC, has set up a very robust surveillance system for assessing safety. One of the things that FDA does very well and uniquely is really getting to the bottom of events like allergic reactions so we can completely understand the circumstances and better inform the public and also our regulatory decisions,” said FDA Commissioner Stephen Hahn.
Newsletter

Related Articles

0:00
0:00
Close
DJI Launches Heavy-Duty Coaxial Quadcopter with 80 kg Lift Capacity
U.S. Senate Approves Major Legislation Dubbed the 'Big Beautiful Bill'
Largest Healthcare Fraud Takedown in U.S. History Announced by DOJ
Poland Implements Border Checks Amid Growing Migration Tensions
Political Dispute Escalates Between Trump and Musk
Emirates Airline Expands Market Share with New $20 Million Campaign
Amazon Reaches Milestone with Deployment of One Millionth Robot
US Senate Votes to Remove AI Regulation Moratorium from Domestic Policy Bill
Yulia Putintseva Calls for Spectator Ejection at Wimbledon Over Safety Concerns
Jury Deliberations in Diddy Trial Yield Partial Verdict in Serious Criminal Charges
House Oversight Committee Subpoenas Former Jill Biden Aide Amid Investigation into Alleged Concealment of President Biden's Cognitive Health
King Charles Plans Significant Role for Prince Harry in Coronation
Two Chinese Nationals Arrested for Espionage Activities Against U.S. Navy
Amazon Reaches Major Automation Milestone with Over One Million Robots
Extreme Heat Wave Sweeps Across Europe, Hitting Record Temperatures
Meta Announces Formation of Ambitious AI Unit, Meta Superintelligence Labs
Robots Compete in Football Tournament in China Amid Injuries
Trump Administration Considers Withdrawal of Funding for Hospitals Providing Gender Treatment to Minors
Texas Enacts Law Allowing Gold and Silver Transactions
China Unveils Miniature Insect-Like Surveillance Drone
OpenAI Secures Multimillion-Dollar AI Contracts with Pentagon, India, and Grab
Marc Marquez Claims Victory at Dutch Grand Prix Amidst Family Misfortune
Germany Votes to Suspend Family Reunification for Asylum Seekers
Elon Musk Critiques Senate Budget Proposal Over Job Losses and Strategic Risks
Los Angeles Riots ended with Federal Investigations into Funding
Budapest Pride Parade Draws 200,000 Participants Amid Government Ban
Southern Europe Experiences Extreme Heat
Xiaomi's YU7 SUV Launch Garners Record Pre-Orders Amid Market Challenges
Jeff Bezos and Lauren Sanchez's Lavish Wedding in Venice
Russia Launches Largest Air Assault on Ukraine Since Invasion
Education Secretary Announces Overhaul of Complaints System Amid Rising Parental Grievances
Massive Anti-Government Protests Erupt in Belgrade
Trump Ends Trade Talks with Canada Over Digital Services Tax
UK Government Softens Welfare Reform Plans Amid Labour Party Rebellion
Labour Faces Rebellion Over Disability Benefit Reforms Ahead of Key Vote
Jeff Bezos and Lauren Sánchez Host Lavish Wedding in Venice Amid Protests
Trump Asserts Readiness for Further Strikes on Iran Amid Nuclear Tensions
North Korea to Open New Beach Resort to Boost Tourism Economy
UK Labour Party Faces Internal Tensions Over Welfare Reforms
Andrew Cuomo Hints at Potential November Comeback Amid Democratic Primary Results
Curtis Sliwa Champions His Vision for New York City Amid Rising Crime Concerns
Federal Reserve Proposes Changes to Capital Rule Affecting Major Banks
EU TO HUNGARY: LET THEM PRIDE OR PREP FOR SHADE. ORBÁN TO EU: STAY IN YOUR LANE AND FIX YOUR OWN MESS.
Trump Escalates Criticism of Media Over Iran Strike Coverage
Trump Announces Upcoming US-Iran Meeting Amid Controversial Airstrikes
Trump Moves to Reshape Middle East Following Israel-Iran Conflict
Big Four Accounting Firms Fined in Exam Cheating Scandal
NATO Members Agree to 5% Defense Spending Target by 2035
Australia's Star Casino Secures $195 Million Rescue Package Amid Challenges
UK to Enhance Nuclear Capabilities with Acquisition of F-35A Fighter Jets
×