Download App
Google Android
Apple iOS
Huawei
English
English
Malay
Guest
Login
Register
Home
Quiz
Battle
Practice
Class
Classes List
Timetable
Assignments
Learn
Learning Hub
Quick Notes
Videos
Experiments
Textbooks
Login
Register
Download App
Google Android
Apple iOS
Huawei
EN
MS
Learn
Quick Notes
List
Health Issues Related to Immunity
Health Issues Related to The Human Immune System
11.4
Health Issues Related to The Human Immune System
HIV
HIV or human immunodeficiency virus is the virus that can cause AIDS.
HIV virus infection will trigger the immune system of individuals to produce HIV antibodies against the antigen of pathogens.
Unfortunately, the antibodies produced by the immune system in humans are unable to kill the virus.
This virus always changes the shape of the antigen so that it will not be recognized by the antibodies.
HIV virus weakened and destroys the immune system of humans by attacking the lymphocyte T.
This virus incorporates its own RNA into the lymphocyte T and uses the lymphocyte's DNA to replicate and produce more HIV virus.
This process will destroy almost all lymphocyte T in the body.
Lymphocyte T is unable to trigger the lymphocyte B to produce antibodies and this weakens the immune system.
This virus can be transferred from one individual to another through blood or body fluids.
Systemic Lupus Erythematosus (SLE)
A chronic autoimmune disease.
The body of SLE patients produces many antibodies that attack its own tissues.
SLE can occur in anybody of all ages but it usually occurs in women compared to men.
This disease can be controlled through medication.
The symptoms of SME are rashes, mouth ulcers, hair fall, inflammation in the blood vessels and joints and the skin becomes sensitive towards the sunlight.
SLE can spread to organs that can cause organ failure especially kidney failure.
Allergies
Allergies are the body's hypersensitivity reactions that occur due to the body’s immune system reacting to allergens that enter the body.
The body’s immune system produces antibodies to attack allergens that are considered harmful, even though the allergens are actually harmless.
An allergen is a foreign substance, usually a protein that triggers a hypersensitive reaction.
Health Issues Related to The Human Immune System
11.4
Health Issues Related to The Human Immune System
HIV
HIV or human immunodeficiency virus is the virus that can cause AIDS.
HIV virus infection will trigger the immune system of individuals to produce HIV antibodies against the antigen of pathogens.
Unfortunately, the antibodies produced by the immune system in humans are unable to kill the virus.
This virus always changes the shape of the antigen so that it will not be recognized by the antibodies.
HIV virus weakened and destroys the immune system of humans by attacking the lymphocyte T.
This virus incorporates its own RNA into the lymphocyte T and uses the lymphocyte's DNA to replicate and produce more HIV virus.
This process will destroy almost all lymphocyte T in the body.
Lymphocyte T is unable to trigger the lymphocyte B to produce antibodies and this weakens the immune system.
This virus can be transferred from one individual to another through blood or body fluids.
Systemic Lupus Erythematosus (SLE)
A chronic autoimmune disease.
The body of SLE patients produces many antibodies that attack its own tissues.
SLE can occur in anybody of all ages but it usually occurs in women compared to men.
This disease can be controlled through medication.
The symptoms of SME are rashes, mouth ulcers, hair fall, inflammation in the blood vessels and joints and the skin becomes sensitive towards the sunlight.
SLE can spread to organs that can cause organ failure especially kidney failure.
Allergies
Allergies are the body's hypersensitivity reactions that occur due to the body’s immune system reacting to allergens that enter the body.
The body’s immune system produces antibodies to attack allergens that are considered harmful, even though the allergens are actually harmless.
An allergen is a foreign substance, usually a protein that triggers a hypersensitive reaction.
Chapter : Human Immunity
Topic : Health Issues Related to Immunity
Form 4
Biology
View all notes for Biology Form 4
Related notes
Body Defence
Actions of Antibodies
Types of Immunity
Biological Field and Career
Safety and Rules in Biological Laboratory
Communication in Biology
Scientific Investigation in Biology
Cell Structure and Cell Function
Living Processes in Unicellular Organisms
Living Processes of Multicellular Organisms
Report this note
Quiz Battle
Challenge your friend in timed Quiz battle
Learn more
Register for a free Pandai account now
Edit content
×
Loading...
Quiz
Videos
Notes
Account