Question

How does AIDs virus enter the human body? Describe its life cycle. Why does this infection shatter Immunity of the victim?

Answer 1

Hint: HIV is a human immunodeficiency virus. Retrovirus enters the cell of the victim via fusion with the cell membrane. Through replication of this virus, it shatters the immunity of the victim.

Complete answer:
Human immunodeficiency virus type 1(HIV-1) is transmitted in body fluids (blood, seminal fluid, vaginal secretions, amniotic fluid, and breast milk) that contain free virions and infected CD4+T cells. Mother-to-child transmission of HIV-1 may occur in utero, at the time of delivery, or through breastfeeding, but most perinatal infections are thought to occur after exposure during delivery. HIV is not transmitted through casual contact. Blood and its products can transmit HIV to recipients.

Life cycle: The life cycle of HIV-1: Attachment of HIV to a CD4+receptor.
Immersion and uncoating of the virus with viral RNA and Reverse Transcriptase.
(i) Reverse transcription, double-strand DNA produces the RNA. which produces a mirror image. Thus call viral RNA. The RNA contains a deoxyribonucleic acid molecule.
(ii) Immersion of viral DNA into host DNA using the integrase enzyme.
(iii) Transcription of the enter to viral DNA to produce viral Messenger RNA.
(iv) Translating of viral Messenger RNA to create viral polyprotein.
(v) Cleavage of viral polyprotein into individual viral proteins that makes up the new virus.

The infection shutter immunity of the victim:
It is a very small infectious organism it can replicate only in the other organism, inside of the living cell; in the case of only in HIV human immune cells. To understand more about HIV and AIDs how they are connected we need to go closer and understand how the immune system works. Your immune system is white blood cells which are a complex network of organs, tissues, and cells. These white blood cells are produced in the bone marrow, it migrates to various parts of the immune system such as the lymph nodes, spleen, and thymus, and this floats around in the bloodstream. The components which are produced in our immune system work together to prevent the entering of germs and also help to prevent the growing and multiplying of germs inside our body.

Note: Human immunodeficiency virus infection/ acquired immunodeficiency virus infection/acquired immunodeficiency syndrome (HIV/AIDs) is a disease of the human immune system caused by infection with human immunodeficiency virus i.e., HIV. HIV causes AIDS by destroying T4 cells. Hence, this weakens the immune system and allows opportunistic infections. When the person is infected by HIV his immune system becomes too weak to fight any kind of infection or disease. When the person gets severe infection it may cause death.