The COVID-19 vaccine, like other vaccines, may sensitize allergy sufferers who have had an anaphylactic episode in the past. Therefore, the physician should know its exact composition before administering it to the patient, and during the appointment qualifying for vaccination, the patient must tell him that he has had an anaphylactic reaction in the past.
The COVID-19 vaccine can cause sensitization, the British drug regulatory agency MHRA reported after two people suffered anaphylactic shock, i.e. a sudden and very strong shock after vaccination for COVID-19 began in the UK an allergic reaction that may be fatal.
Another person probably reacted with an allergy after receiving the vaccine. In an official statement, the agency warned that people who have had an anaphylactic reaction to drugs or food should not take the COVID-19 vaccine made by Pfizer and BioNTech.
In an interview with the Polish Press Agency, prof. Ewa Czarnobilska, head of the Department of Clinical and Environmental Allergology, Collegium Medicum of the Jagiellonian University in Krakow, emphasized thatthere is no reason to panic and it cannot be said that allergy sufferers cannot get vaccinated.
- 40 percent Poles have known allergies, mainly allergies to pollen, mites and food. Anaphylactic shock is rare.If someone has not had anaphylaxis in the past, they should not be afraid of vaccination , she said.
The expert emphasized that rare allergic reactions are characteristic of various vaccines, and they are sensitized not by virus or bacterial antigens, but by additional ingredients in the vaccine - these are usually negligible amounts of egg white, cow's milk, gelatin. These additives can be found, for example, in vaccines against influenza, yellow fever or rabies.
- If someone had an anaphylactic reaction after eating an egg, we qualify him for a vaccine without the addition of egg proteins - the allergist explained and added thatvaccines with allergenic ingredients can be administered, but with appropriate safeguards, also for people with a history of anaphylactic shocks and they do not necessarily have to cause such a shock again .
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According to the expertevery allergic patient who is prescribed adrenaline for self-injection should be qualified for vaccination by an allergist who must know the exact composition of the vaccine.
- If I were to qualify a patient who had an anaphylactic or anaphylactoid shock, I cannot - because I do not know the composition of the vaccine - said prof. Czarnobilska.
Sensitization was not observed in clinical trials, during which over 20,000 people have been vaccinated. People recruited for the tests had no history of allergic reactions.
An anaphylactic reaction occurs in an allergy sufferer immediately after exposure to the allergen. This may be, for example, a rash with hives, itchy skin, shortness of breath, swelling of the lip, tongue or larynx, drop in pressure. An anaphylactoid reaction is similar to an anaphylactic reaction, but is milder and may not be caused by allergies.
SOURCE: PAP
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