1. Allergy

2. 李娜
李小刚
吴鹏叶
柳丽娴

3. The definition of allergy
An allergy is a hypersensitivity reaction by your immune system to something that does not bother most other people. People who have allergies often are sensitive to more than one thing. Substances that often cause reactions are
Pollen
dust mites （尘螨）
mold spores（霉菌孢子）
Pet
food
insect stings（昆虫蛰伤） medicines

4. Questions In this passage, which allergy was mentioned?
What allergic reactions will be caused by proteases（蛋白酶）?
What are those allergy suffers advised to do?

6. What’s the matter with them?
allergy

7. allergy
background
definition
symptoms
treatment

8. hypersensitivity [ˌhaɪpəˌsensə'tɪvətɪ] 超敏性;
immune system [iˈmju:n ˈsistəm] 免疫系统;
atopic dermatitis [əˈtɔpik ˌdə:məˈtaitis 特应性皮炎
 allergic asthma [əˈlɜ:dʒɪk ˈæsmə] 过敏性哮喘
 anaphylaxis [ˌænəfɪˈlæksɪs] 过敏反应
insect stings 昆虫刺伤
 immunoglobulin E antibodies (IgE) [ɪ'mju:nəʊ'glɒbjʊlɪn] ['æntɪˌbɒdɪz] 免疫球蛋白E抗体
histamine [ˈhɪstəmi:n] 组胺
adrenaline [ə'drenəlɪn] 肾上腺素
Allergen immunotherapy 变应原免疫治疗
allergic rhinitis [əˈlɜ:dʒɪk raiˈnaitis] 变应性鼻炎; 枯草热

9. airborne [ˈeəbɔ:n] 空气传播的;
aspirin  [ˈæsprɪn] 阿司匹林
antibiotics  [ˌæntɪbaɪ'ɒtɪks] 抗生素
penicillin [ˌpenɪˈsɪlɪn] 青霉素
abdominal pain, [æbˈdɒmɪnl]腹痛
diarrhea,  [ˌdaɪə'rɪə] 腹泻
heredity [həˈredəti] 遗传;
steroids ['stɪərɔɪdz] 类固醇

10. background
background
In the developed world, about 20% of people are affected by allergic rhinitis, about 6% of people have at least one food allergy, and about 20% have atopic dermatitis at some point in time. The word "allergy" was first used by Clemens von Pirquet in 1906.

11. Allergies, also known as allergic diseases are a number of conditions
caused by hypersensitivity of the immune system to
something in the environment that usually causes little or no problem in most people.
These diseases include 
hay fever
 food allergies
 atopic dermatitis
allergic asthma
anaphylaxis  
Definition

12. swelling of the skin during hives.
Symptoms may include red eyes, an itchy rash, runny nose, shortness of breath, or swelling.
Signs and symptoms
allergic rhinitis:
hay fever, causes irritation of the nose, sneezing, itching, and redness of the eyes.
food allergy :
 abdominal pain,
 bloating,
vomiting, 
diarrhea,
itchy skin,
 swelling of the skin during hives. 
For example

13. Medication allergy
Their development is due to both genetic and environmental factors.
The underlying mechanism involves immunoglobulin E antibodies(IgE), part of the body's immune system, binding to an allergen and then to a receptor on mast cells or basophils where it triggers the release of inflammatory chemicals such as histamine.

14. In severe reactions injectable adrenaline (epinephrine).
avoiding known allergens and the use of medications such as steroids and antihistamines.[10]
 In severe reactions injectable adrenaline (epinephrine).
treatment

15. Skin testing on arm
Thank you