EVERYDAY SCIENCE

SCIENCE

VIRUS AND BACTERIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
HIV attacks cells in the
A
circulatory system
B
respiratory system
C
immune system
D
skeletal system
Explanation: 

Detailed explanation-1: -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-2: -CD4+ T cells Given that CD4+ memory T cells are the primary target of HIV-1 in the blood (Brenchley et al.

Detailed explanation-3: -After infecting dendritic cells, HIV then hitches a ride into the lymphoid tissues, where the virus proceeds to infect the rest of the immune system. We’ve had a reasonably good understanding of the molecules involved in allowing the virus to enter the cell.

Detailed explanation-4: -HIV infection causes an acquired immunodeficiency, principally because of depletion of CD4 lymphocytes. The mechanism by which the virus depletes these cells, however, is not clearly understood.

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