IMMUNOLOGY

OVERVIEW OF THE IMMUNE SYSTEM

IMMUNITY INNATE AND ADAPTIVE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
what does HIV do to our immune system?
A
It makes our immune system more stronger
B
It attacks red blood cells
C
It attacks our brain to stop working
D
It attacks our Helper T cells and weakens our immune system to the point where our body cannot fight pathogens
Explanation: 

Detailed explanation-1: -HIV infects white blood cells of your immune system called CD4 cells, or helper T cells. It destroys CD4 cells, causing your white blood cell count to drop. This leaves you with an immune system that can’t fight off infections, even those that wouldn’t normally make you sick.

Detailed explanation-2: -HIV finds the white blood cells, called CD4 cells. HIV gets inside the CD4 cell and makes copies of itself. Then, HIV kills the CD4 cell and the new HIV copies find other CD4 cells to get inside and start the cycle again. HIV kills immune system cells that help the body fight infections and diseases.

Detailed explanation-3: -White blood cells are an important part of the immune system. HIV infects and destroys certain white blood cells called CD4+ cells. If too many CD4+ cells are destroyed, the body can no longer defend itself against infection. The last stage of HIV infection is AIDS (acquired immunodeficiency syndrome).

Detailed explanation-4: -HIV enters its genetic information into helper T cells to make copies of itself. When this happens, the helper T cells die. This severely disrupts the immune response. Low levels of helper T cells mean killer T cells and other white blood cells do not receive as much information about pathogens in the body.

Detailed explanation-5: -HIV is a virus that targets the protein CD4 type T-cells of the body’s immune system. The T-cells are responsible for triggering an immune response to infections. HIV destroys the CD4 T-cells, reducing their overall number and ultimately limiting the body’s ability to fight off infections and certain types of cancers.

Detailed explanation-6: -Adaptive immune response Helper T cells can stimulate another group of white blood cells called B cells to produce antibodies that bind that specific antigen and immobilize it, preventing it from causing infection.

Detailed explanation-7: -This is because HIV hides from the body’s immune system in a group of immune cells called CD4 lymphocytes, also known as the HIV reservoir. While HIV is latent in the reservoir, meaning it doesn’t replicate, it can wake up, causing viral load to increase and making a cure elusive. In their new research, Dr.

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