Covid-19 Update: What You Need to Know About Vaccine Allergic Reactions

RVAchironeuro • February 1, 2021

Hello again everyone:

  I continue to get a lot of questions about the safety and efficacy of the current vaccines available, which are the Pfizer and Moderna offerings. There continue to be several questions that are unanswered because we are so early in the process of Emergency Use Authorization and we do not have the full data that normally arrives with full use authorization. But right now, a safety hazard that is known is that there can be allergic reactions to some component(s) of the vaccine and it seems that everyone acknowledges this fact and all parties are being transparent about it. So, what does that mean for us when it comes to receiving the vaccine? I would refer you to this document from the American College of Allergy, Asthma and Immunology that they released December 14 th , 2020 (1) regarding only the Pfizer vaccine, although it seems that the allergic issues may be similar between the Pfizer and Moderna vaccines.

“Reactions to vaccines, in general, are rare with the incidence of anaphylaxis estimated at 1.31 in 1 million doses given. With the emergency use authorization of the Pfizer-BioNTech COVID-19 vaccine by the FDA on December 11, 2020, the ACAAI COVID-19 Vaccine Task Force recommends the following guidance for physicians and other providers related to risk of an allergic reaction on vaccination. These recommendations are based on best knowledge to date but could change at any time, pending new information and further guidance from the FDA or CDC.

  1. The Pfizer-BioNTech COVID-19 vaccine should be administered in a health care setting where anaphylaxis can be treated. All individuals must be observed for at least 20-30 minutes after injection to monitor for any adverse reaction. All anaphylactic reactions should be managed immediately with IM epinephrine as the first line treatment.
  2. The Pfizer-BioNTech COVID-19 vaccine should not be administered to individuals with a known history of a severe allergic reaction to polyethylene glycol as it is a component of this vaccine known to cause anaphylaxis.
  3. Data related to risk in individuals with a history of allergic reactions to previous vaccinations and/or mast cell activation syndrome/idiopathic anaphylaxis is very limited and evolving. A clinical decision to administer the Pfizer-BioNTech COVID-19 vaccine should be undertaken by the physician or other provider administering the vaccine using their professional judgment and in consultation with the patient, balancing the benefits and risks associated with taking the vaccine.
  4. Individuals with common allergies to medications, foods, inhalants, insects and latex are no more likely than the general public to have an allergic reaction to the Pfizer-BioNTech COVID-19 vaccine. Those patients should be informed of the benefits of the vaccine versus its risks.
  5. The Pfizer-BioNTech COVID-19 vaccine is not a live vaccine and can be administered to immunocompromised patients. Physicians and other providers should inform such immunocompromised patients of the possibility of a diminished immune response to the vaccine.
  6. Anyone with questions related to the risk of an allergic reaction to the Pfizer-BioNTech COVID-19 vaccine should contact their local board-certified allergist/immunologist.

Bottom Line: Heed this advice and make sure that the facility that offers any vaccine has in place emergency means to handle any allergic reactions.

 

By Mark Smith March 23, 2026
Health News Update: How To Fight Inflammation and Chronic Disease 3.23.26 Hello again everyone: You might wonder why I keep focusing on food…so here are some of the reasons: food choices are the leading cause of death in the U.S. and spreading around the world. Poor food choices lead to inflammation which slowly destroy health. It is that simple, plain, and clear and backed by research. The next question: how do we fight back? Introduction The positive impact of food on health was postulated by the ancient Hippocrates, father of modern medicine with his famous quote: “Let food be thy medicine and medicine be thy food” [1]. In the 21st century, scientists have focused on the effect of nutritional habits in diseases. Nowadays, it is well documented that food plays a noteworthy role in the pathogenesis of chronic diseases namely cardiovascular diseases (CVD), metabolic syndrome, diabetes mellitus type II, and cancer [2–5], as it correlates with others with the lipid pattern, the blood pressure, and the endothelial function. The scientists examine the effect of nutritional habits on disease emergence and progression in both individual nutrient intake and dietary patterns models. Worldwide, two dietary patterns are usually compared—the Mediterranean diet (MD) and the Western diet (WD) [3,6]. The Mediterranean diet reflects the food culture of most Mediterranean countries based on olive oil consumption, seasonal fresh vegetables, cereals, and plants in balance with low consumption of meat [7]. The Western diet, on the contrary, is dominated by high-fat dairy products processed and red meat [8]. However, discordance in the different MD patterns and consumed food doses had been recognized. Without any doubt, those discrepancies could confine and restrict our knowledge on the health benefit mechanisms of the MD [9]. Due to the above, the medical community along with nutritionists and dieticians take a keen interest in MD and its traits [7]. https://www.academia.edu/45378994/biomedicines_Mediterranean_Diet_as_a_Tool_to_Combat_Inflammation_and_Chronic_Diseases_An_Overview?email_work_card=view-paper food choices can fight inflammation and chronic disease Bottom Line: This is a 2020 paper and since then literally hundreds of papers on the MD have emerged showing how the food plan lowers inflammation and the risk for developing multiple chronic illnesses. Even still, lots of research needs to be done to elucidate the many mechanisms of how food impacts our system and how to optimally individualize dietary recommendations. At this point, our best strategy to prevent and/or recover from any chronic condition is to eat as clean and natural as possible. It has become rather obvious that the further away from a natural diet we get, the sicker we become. On top of that, I have yet to see a full recovery from any health issue without the foundation of a predominantly plant-based, unprocessed, whole foods approach…which is why I keep posting about this subject. All the best to you and yours!
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