Two have severe allergic reactions after receiving COVID-19 vaccine in Idaho

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The following is a press release from the Idaho Department of Health and Welfare.

The Idaho Division of Public Health has received reports of two health care workers experiencing severe allergic reactions, also known as serious side effects, after receiving the Pfizer-BioNTech COVID-19 vaccine. The events happened in northern Idaho and the Treasure Valley.

Investigations into both incidents are ongoing, but one person has fully recovered and one is in stable condition but was expected to be discharged Tuesday.

Both people had a known history of severe reactions after receiving an injectable medicine.

“The CDC considers a history of severe allergic reaction as anaphylaxis to any vaccine or injectable therapy as a precautionary measure, but not a contraindication, against vaccination,” said Dr. Christine Hahn, Medical Director of the Division of Public Health. “In light of these events, we are concerned about the risk to people with such a history and recommend that anyone with a history of severe reaction or anaphylaxis to any vaccine or injectable therapy postpone taking this vaccine until more is known.”

“We will continue to update vaccine providers and the public as soon as we know more,” she added. “Meanwhile, people without a severe reaction or anaphylaxis to a vaccine or injectable treatment are still recommended and encouraged to get the vaccine when the vaccine is made available to them.”

Federal, state, and local public health agencies monitor ongoing reports of adverse reactions related to the COVID-19 vaccine. The Ministry of Health and Welfare reviews data from several systems, including the federal vaccine incident reporting system and state reporting systems, where providers who vaccinate and people who receive the vaccine can report any reaction they believe is related to vaccination.

Data from clinical trials with the Pfizer-BioNTech vaccine indicate that there is a very small risk for the vast majority of people who will receive the COVID-19 vaccine. However, there are side effects to the vaccine because it stimulates the body’s immune system. So far, these side effects have included fever, fatigue, headaches, chills, soreness at the injection site. They usually last no longer than a day or two.

For more information on the COVID-19 vaccine in Idaho, please visit: