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Moderna COVID-19 Booster Likely Triggers Acquired Angioedema

A booster dose of Moderna’s COVID-19 vaccine is suspected of having caused acute attacks of acquired angioedema in an 86-year-old man, a case study reported. Its scientists stressed the importance of carefully examining patients set to undergo such vaccinations and considering rarer symptoms, noting this patient reported unusual upper-limb…

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Japan OK’s Berinert SC Injection 2000 to Prevent HAE Attacks

Japan’s Ministry of Health, Labour and Welfare has approved Berinert S.C. Injection 2000 — a C1-inhibitor replacement therapy designed to be self-administered at home via injection under the skin twice per week — for preventing swelling attacks in people with hereditary angioedema (HAE). The therapy has been approved in…

Featured ColumnFinding the Perfect Substitute for Things We Love 

For columnist Danita LaShelle Jones, a cooking technique helped her prevent one of her daughter’s hereditary angioedema symptoms.

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Want to stay up to date on all the latest on angioedema? Click the link below to find more news and information.

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Finding the Perfect Substitute for Things We Love 

The Importance of Staying Aware So That Rare Doesn’t Surprise You

Coming to Terms With Unrealistic Expectations After an HAE Diagnosis

Even Those Things We Love Can Become an Instant Problem

Past Experiences Make Me Wonder About My Daughter’s Future Friendships

To Treat Special Needs, an Average Babysitter Just Isn’t Enough

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Information About Angioedema


Angioedema is the formal medical term for swelling under the skin. It usually occurs as part of an allergic reaction, but has forms that are not due to allergies.



Acute angioedema often occurs as part of an allergic reaction to various allergens or triggers. These can include certain foods, insect bites or stings, medications, and natural rubber products like latex.



Angioedema and hives often occur at the same time. However, angioedema causes large, thick welts which may not be itchy, whereas hives are smaller and usually itchy.