3.2 Factors Affecting the Immune System. A vaccine is a special version of an antigen that gives...
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Transcript of 3.2 Factors Affecting the Immune System. A vaccine is a special version of an antigen that gives...
CHAPTER 3 NOTES3.2 Factors Affecting the Immune System
GENERAL
A vaccine is a special version of an antigen that gives you immunity against a disease (like a weakened form of a disease)
Started by people like Mary Montagu noticing women in Turkey infecting their children with a mild form of small pox or doctors like Edward Jenner noticing that farmers who had cow pox never got small pox
DISORDERS OF THE IMMUNE SYSTEM1. Allergies Unusually high sensitivity to some substance which
acts like an antigen Substances that cause allergic reactions are called
allergens Symptoms include runny nose and watery eyes which
are a side effect of a substance called histamines Antihistamines are taken to combat the effect If the reaction is severe and a person goes into
anaphylactic shock then needles with adrenaline are injected into the body
MORE DISORDERS
2. Acquired immunodeficiency syndrome (AIDS)
Caused by the HIV virus which attacks and destroys helper T cells so other pathogens can enter the body
Mainly transmitted in body fluid (semen and blood)
TAKING CARE OF YOUR IMMUNE SYSTEM Eat a well balanced diet Maintain your personal hygiene Keep your home clean Avoid tobacco and other non-prescription
drugs Get plenty of rest and exercise Keep your vaccinations up to date Do not engage in activities that involve
sharing body fluids with others