Search results
Results From The WOW.Com Content Network
Allergies in children, an incidence which has increased over the last fifty years, are overreactions of the immune system often caused by foreign substances or genetics that may present themselves in different ways. [1] There are multiple forms of testing, prevention, management, and treatment available if an allergy is present in a child.
Allergies to the sugar carbohydrate found in beef, venison, lamb, and pork called alpha-gal. It is brought on by tick bites. [43] Allergic reaction to pork is an exception, as it may also be caused by pork-cat syndrome instead of alpha-gal allergy. Rice: Sneezing, runny nose, itching, stomachache, eczema.
Food allergies: 7.6% of children and 10.8% of adults. [131] Peanut and/or tree nut (e.g. walnut) allergy affects about three million Americans, or 1.1% of the population. [129] 5–7% of infants and 1–2% of adults. A 117.3% increase in peanut allergies was observed from 2001 to 2005, an estimated 25,700 people in England are affected.
Allergen. An allergen is a type of antigen that produces an abnormally vigorous immune response in which the immune system fights off a perceived threat that would otherwise be harmless to the body. Such reactions are called allergies . In technical terms, an allergen is an antigen that is capable of stimulating a type-I hypersensitivity ...
Anaphylaxis (Greek: ana- ‘against’ + phylaxis ‘guarding’) is a serious, potentially fatal allergic reaction and medical emergency that is rapid in onset and requires immediate medical attention regardless of the use of emergency medication on site. [4] [5] It typically causes more than one of the following: an itchy rash, throat closing ...
Frequency. ~6% (developed world) [ 1][ 2] A food allergy is an abnormal immune response to food. The symptoms of the allergic reaction may range from mild to severe. They may include itchiness, swelling of the tongue, vomiting, diarrhea, hives, trouble breathing, or low blood pressure. This typically occurs within minutes to several hours of ...
Frequency. ~20% (Western countries) [ 2][ 7] Allergic rhinitis, of which the seasonal type is called hay fever, is a type of inflammation in the nose that occurs when the immune system overreacts to allergens in the air. [ 6] Signs and symptoms include a runny or stuffy nose, sneezing, red, itchy, and watery eyes, and swelling around the eyes. [ 1]
Atopy. Atopy is the tendency to produce an exaggerated immunoglobulin E (IgE) immune response to otherwise harmless substances in the environment. [2] Allergic diseases are clinical manifestations of such inappropriate, atopic responses. [2] Atopy may have a hereditary component, although contact with the allergen or irritant must occur before ...