The weakening of immunity after the second dose of the vaccine was the last hurdle in the government’s exit strategy for the pandemic. Now, the booster vaccine campaign remains Britain’s best hope for containing the virus this winter. The program currently targets health care workers, people over 50 and those who are immunocompromised. Severe complications are rare, but may persist after a third dose of the Pfizer vaccine.
Data from Israel, which has given nearly 3 million doses of the third shot so far, has revealed no major red flags, NBC Chicago reported.
However, a small number of people have experienced a severe allergic reaction to the Pfizer vaccine, such as anaphylaxis, according to the article.
A rare allergic reaction is said to occur within 15 to 30 minutes of receiving the vaccine.
The CDC had previously stressed that side effects are rare, with some officials saying they are less likely to occur after the third shot.
Read more: Expected Side Effects of Pfizer and Moderna Booster Shots – How They Compare
An entry on Pfizer’s website in August read: “Following the administration of the Pfizer-BioNTech COVID-19 vaccine, the following have been reported outside clinical trials. […]”
“[…] Severe allergic reactions, including anaphylaxis and other hypersensitivity reactions, diarrhea, vomiting, pain in the extremities, myocarditis and pericarditis.
“Additional adverse reactions, some of which may be serious, may arise with more widespread use of the Pfizer-BioNTech COVID-19 vaccine.”
The drug company urged distributors not to give the Pfizer booster injection to individuals with “known severe allergic reactions” to any component of the Pfizer vaccine.
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Health authorities state that a life-threatening allergic reaction can occur within minutes of exposure to an allergen.
These immune chemicals can trigger strong symptoms that can lead to serious skin symptoms, such as hives and swelling, as well as severe breathing problems.
Other symptoms of anaphylaxis include difficulty breathing and wheezing due to narrowing of the lower airways.
The JCVI updated its COVID-19 Booster advice last month, stating that AstraZeneca may be considered for those who cannot receive the mRNA vaccine due to such an allergy.
She continued, “Most people with anaphylaxis (81 percent) have a history of allergic reactions or allergic reactions, including some with previous anaphylactic events.”
It comes as the National Health Service announced that more than two million people have now received a third dose of the booster vaccine in the UK.
The health authority said those eligible were quick to take the booster vaccine, which helps strengthen immune defenses before winter.
Celebrating the achievement, Sajid Javid wrote on Twitter: “2 million people received a booster shot and a third punched in England. This is a fantastic progress that helps strengthen our defense wall so we can keep the virus out.”