Anaphylaxis was first reported in 902 by Portier and Richer when immunizing against jellyfish toxins with actinia extract. Instead of transferring immunity, some of the animals developed marked shock, which resulted in death.
Anaphylactoid reaction is an acute hypersensitivity reaction which shows the symptoms of an anaphylactic reaction, and it is not immunological reactions.
It has been used to describe all clinical reactions patterns mimicking anaphylaxis without describing pathophysiological mechanism.
The principal manifestation of anaphylaxis occurs in areas where mast cell concentrations are highest: skin, lungs and gastrointestinal tract. Histamine release is responsible for the clinical manifestations of this reaction.
The clinical symptoms of anaphylaxis often start with skin symptoms (itch, flush, urticarial, angioedema) and can comprise respiratory, gastrointestinal, and cardiovascular symptoms.
Symptoms of anaphylaxis occur within 2 to 20 minutes of exposure to the antigen or hapten and may persists for up to 36 hours.
What are the anaphylactoid reaction symptoms?
The Most Popular Posts
-
Botulism is a rare but serious illness caused by a neurotoxin produced by the bacterium Clostridium botulinum . This disease is marked by a ... -
Botulism, a rare but serious paralytic illness, can present in three main clinical forms: infant botulism (IB), foodborne botulism (FBB), an...
-
Puffer fish poisoning is results from ingestion of the flesh of certain species of fish belonging to the Tetraodontidae. These fish can be f... -
While tree nut allergies are not nearly as common as peanut allergies, they do exist. Tree nuts are, as their name suggest, nuts that grow ... -
Food Sanitation: Construction of Kitchen Area The surfaces of benches and tables in food preparation areas should be of stainless steel of p...