A hypersensitivity reaction happens when the immune system mistakenly identifies harmless substances as harmful. There are several types of hypersensitivity reactions, depending on the class of ...

Infusion reactions, also known as acute infusion reactions or infusion-related reactions, are common adverse effects that can occur when a person receives medication intravenously. Infusion reactions ...

Please provide your email address to receive an email when new articles are posted on . All participants showed no false-negative results when tested 2 weeks after anaphylactic reaction to food ...

The Centers for Disease Control and Prevention reported Wednesday that at least 21 people have had a severe allergic reaction after receiving their first dose of the Covid-19 vaccine. All of the ...

Everybody wants a little of that TikTok magic. To that end, Twitter is rolling out a new test feature that invites people to post video reactions to tweets instead of quote-tweeting the old-fashioned ...

Five years ago, Facebook gave its users five new ways to react to a post in their news feed beyond the iconic “like” thumbs-up: “love,” “haha,” “wow,” “sad” and “angry.” Behind the scenes, Facebook ...