As U.S. health authorities expand use of the leading Covid-19 vaccines, researchers investigating heart-related risks linked to the shots are exploring several emerging theories, including one centered on the spike protein made in response to vaccination.
Researchers aren’t certain why the messenger RNA vaccines, one from Pfizer Inc. and partner BioNTech SE and the other from Moderna Inc., are likely causing the inflammatory heart conditions myocarditis and pericarditis in a small number of cases.
Some theories center on the type of spike protein that a person makes in response to the mRNA vaccines. The mRNA itself or other components of the vaccines, researchers say, could also be setting off certain inflammatory responses in some people.
Dr. Al Johnson is back with Dr. Peter McCullough to discuss the problem with long COVID as well as vaccine reactions.
Iceland on Friday suspended the Moderna anti-COVID vaccine, citing the slight increased risks of cardiac inflammation, going further than its Nordic neighbours which simply limited use of the jabs.
…This decision owed to “the increased incidence of myocarditis and pericarditis after vaccination with the Moderna vaccine, as well as with vaccination using Pfizer/BioNTech,” the chief epidemiologist said in a statement.
British health chiefs have quietly released a warning that Pfizer and Moderna’s Covid vaccines may cause heart damage, MailOnline can reveal.
Fears about the mRNA jabs’ links to myocarditis have grown in recent weeks, following a string of cases in young adults and children in Israel and the US.