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Earlier this month, some health care workers in the UK also developed allergic reactions after being first vaccinated against Pfizer.
food and drug administration and the Cdcs are discussing an allergic reaction, and it's not clear which ingredient in the vaccine caused the allergic reaction.
's Moderna vaccine allergy incident involved Hossein Sadrzadeh, an oncologist at Boston Medical Center.
confirmed that he himself had a severe shellfish allergy.
said in an interview that he reacted almost immediately after vaccination, feeling dizzy and his heart beat faster. David Kibbe, a spokesman for
Boston Medical Center, confirmed in a statement that Sadrzad did get the Moderna vaccine on Thursday and did have an adverse reaction, but said he was rushed to the emergency room for evaluation, observation and treatment immediately after developing an adverse allergic reaction.
's out of the hospital and in good shape.
spokesman for Moderna, said late Thursday that the company could not comment publicly on the case.
Friday, the spokesman added that the company's medical safety team would investigate the matter and inform the department that oversees the distribution of the vaccine.
the FDA would not comment on the incident.
, a spokesman for the U.S. Centers for Disease Control and Prevention, said information about adverse reactions to vaccinations will be posted on the website next week.
center will also work with local public health authorities to discuss current issues.
'There are now more than 1 million people across the Country who have been vaccinated, and severe allergic reactions are still rare, so most people don't need to worry too much and pay more attention to people with a history of severe allergies, ' says Dr. Merin Kuruvilla, an allergist and immunologist at Emory University.
the first case of an allergic reaction after being vaccinated against Pfizer, the CDC suggested that an ingredient in the Pfizer and Moderna vaccines may have caused the allergy.
reactions usually occur very quickly, usually within a few minutes of exposure to the allergen, which can lead to shortness of breath, a sharp drop in blood pressure and, in severe cases, life-threatening.
, however, the CDC recommends that people with mild allergies should also be vaccinated and wait 15 minutes after vaccination before leaving.
who has had a more severe allergic reaction to a substance before should be monitored for an additional 15 minutes.
himself said in an interview that he carried an epinephrine syringe with him during vaccinations to prevent allergic reactions.
said he started the vaccination at 3:30 p.m., and within minutes, his heart rate had soared to 150 times a minute, about twice the normal heart rate.
he immediately felt a tingling of his tongue and then numbed.
, he felt dizzy, began to sweat, and his blood pressure plummeted.
realized that his immune system was fighting back.
"This allergic reaction is the same as my allergic reaction to shellfish.
", he was injected with epinephrine and carried on a stretcher to the emergency room.
took several drugs, including steroids, there to calm the body's immune response.
's medical records show that "after being vaccinated against Moderna, he was rushed to the emergency room with shortness of breath, dizziness and palpitations".
four hours later, he came out of the emergency room.
as of Friday morning, he said he was fine.
he was scared by what had happened the day before, saying, "I don't want anyone to go through anything like this."
" Moderna vaccine, like Pfizer's, is designed around Messenger RNA.
when inoculated, messenger RNA enters human cells and instructs the manufacture of a protein called Spike, which then teaches the immune system to recognize and prevent coronavirus from entering the cells.
vaccine also contains a small amount of other ingredients that wrap fragile messenger RNA in a protective grease bubble to help it remain stable during transport.
one of the two vaccines was identified as a common allergen.
but some experts say polyglycol (PEG) is common in both vaccine formulations, which may be responsible for allergic reactions.
is known to be present in many medical drugs, including laxatives, injectable steroids, and ultrasonic gels.
, however, experts say it is not yet clear what substance is the cause of the allergic reaction, or whether it may have been caused by other causes, and more experiments are needed to reach a conclusion.
Dr. Kimberly Blumenthal, an allergist and immunologist at Massachusetts General Hospital, points out that without blood tests, allergic reactions can sometimes be difficult to confirm, and blood tests need to find trypsin, which is released in allergic reactions.
, according to late-stage clinical trial documents, There were no reports of allergic reactions, but mentioned the potential for rare side effects.
, however, some experts say allergic reactions seem unusually frequent and should not occur so quickly.
, under normal circumstances, the probability of an allergic reaction caused by a vaccine should be one in one million.
vaccine, which is similar to boric acid, is prone to facial inflammation, according to the committee, and has side effects in some trial participants who have used facial fillers.
dermatologists who are certified by the local council explain the FDA committee's considerations.
, a dermatologist in California, says the response is an immune response.
Shirley Chi, a research group, said: "When you get vaccinated, the immune system that causes inflammation accelerates, and that's how it works.
", you'll see an immune response in some areas, because the vaccine finds substances that don't exist naturally in your body, and that makes sense.
, she says side effects shouldn't stop people from getting a vaccine.
when it's your turn to vaccinate, don't let this stop you from getting vaccinated, and all skin filler reactions are easily handled by medical staff.
, millions of people in the United States use facial fillers under the guidance of doctors to smooth fine lines, wrinkles, and beautify cheeks and lips.
some patients had cheek fillers six months before vaccination, and one patient had lip fillers two days after vaccination.
but when everyone was treated with steroids and antihistamines, all the reactions disappeared.
source: Houston Chinese Information Network