U.S. FDA reported five person developed allergic reactions when given Pfizer’s Covid-19 vaccine.

Marks said that a chemical named polythene glycol (PEG) “could be the culprit” for adverse reactions. The US Food and Drug Administration is reviewing about five allergic reactions that occurred after Pfizer Inc and BioNTech SE were administered COVID-19 in the United States this week, according to a senior FDA official late Friday. Dr Peter Marks, Director of the FDA Centre for Biologics Assessment and Testing, said at a press conference that allergic reactions have been reported in more than one state, including Alaska. Marks has said that a chemical called polythene glycol (PEG) that is an ingredient in the Pfizer vaccine-as well as the Moderna Inc vaccine approved on Friday-“could be the culprit” for the reactions. Marks said that allergic reactions to PEG could be far more frequent than previously understood.

The cases in Alaska is similar to the two cases recorded in Britain last week. The UK medical regulator said that someone with a history of anaphylaxis or serious allergic reactions to a drug or food should not get a Pfizer-BioNTech COVID-19 vaccine.But the US Food and Drug Administration said that most Americans with allergies should be safe to get the vaccine. It was proposed that only those who have previously had serious allergic reactions to vaccines or components in this particular vaccine should stop taking a dose.On Friday, the FDA reported that Moderna vaccine could not be given to persons with a confirmed history of serious allergic reactions to any of the components of the injection.The regulator also mandates that adequate medical attention for acute allergic reactions be available when a shot is given in the event of an anaphylactic reaction.Pfizer could not be contacted for comment immediately.

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