Can I be allergic to the vaccines?

Although rare, some people have reported allergic reactions to the vaccines. An extraordinarily tiny fraction of vaccine recipients have experienced anaphylaxis  -- a severe allergic reaction that can impair people's breathing.

It's important to recognize just how unrepresentative these cases are. As of January 19, only 45 people experienced anaphylaxis after receiving the Pfizer/BioNTech vaccine, a rate of 6.2 cases per 1 million. Meanwhile, just 15 experienced anaphylaxis after receiving the Moderna vaccine, a rate of 2.1 cases per 1 million. Not a single person has died, in large part because vaccine administrators are trained to look for signs of anaphylaxis and intervene if necessary.

By comparison, Americans have a 1 in 15,300 -- or 0.000065 percent -- chance of being struck by lightning over the course of their lives. In other words, you're about six times more likely to be struck by lightning than you are to experience anaphylaxis from a Covid-19 vaccine.

While they investigate the possible cause of these allergic reactions, the Centers for Disease Control and Prevention (CDC) recommends that those with allergies to pets, food, environmental particles like pollen, oral medications, or other things not related to ingredients of vaccines should get vaccinated.

Certain people need to be more careful. The CDC recommends that people with a history of immediate allergic reactions to other vaccines (that do not contain ingredients found in the Covid-19 vaccines) should consult an allergist or immunologist before proceeding to get vaccinated, and may want to wait to get vaccinated.

Someone who has had a previous severe or immediate allergic reaction to a first dose of the Covid-19 vaccine should not get a second dose. That includes people who had a severe or immediate allergic reaction to one of the vaccine's ingredients.

COVID-19 Side Effects - Should I Be Worried?
COVID-19 Vaccine Side Effects - Should I Be Worried
COVID-19 Side Effects - Should I Be Worried?
Related Questions
Where should I go for trusted and up-to-date information on Covid-19 vaccines?
The Centers for Disease Control and Prevention (CDC) has great information on the Covid-19 vaccines, including a FAQ page. Another CDC resource will direct you to state Department of Health websites. Those sites will help you determine when you can get the vaccine in your area. This website ( will also be continually updated to provide trusted information on all Covid-19-related matters, including vaccines. You can find an interactive state map with links to state…
I'm young and healthy. Should I get vaccinated?
While not considered to be at high risk for severe complications from Covid-19, serious cases do occur among younger, healthier people. The Centers for Disease Control and Prevention (CDC) also warns of the potential long-term health effects of Covid-19 infection, even for those who experienced mild illness. In addition, young people can still be carriers of the virus and contribute to community spread without ever having symptoms. Therefore, you should still get vaccinated when one becomes…
Is a monoclonal antibody treatment the same as a vaccine? If not, what's the difference?
Monoclonal antibody treatments are not the same as vaccines. Monoclonal antibodies are medicines that directly deliver man-made antibodies against a virus to your body to help fight off infection. To treat Covid-19, the FDA has approved two monoclonal antibody treatments for emergency use -- bamlanivimab and the casirivimab and imdevimab antibody cocktail. These treatments are given to patients through an IV and attack the natural spike protein found on the surface of the Covid-19 virus. The…