human immunodeficiency virus (HIV)

Outline HIV Definition HIV Structure HIV History HIV life cycle HIV Transmission AIDS (HIV Infection) AIDS Symptoms References

Outline HIV Definition HIV Structure HIV History HIV life cycle HIV Transmission AIDS (HIV Infection) AIDS Symptoms References

HIV Definition The human immunodeficiency virus (HIV) is a lentivirus (a subgroup of retrovirus) that causes HIV infection and over time acquired immunodeficiency syndrome

Outline HIV Definition HIV Structure HIV History HIV life cycle HIV Transmission AIDS (HIV Infection) AIDS Symptoms References

HIV Structure HIV is a round, ball-shaped virus. It has two single strands of RNA for its genome. The RNA is used to carry the genetic information that is passed on when new HIV particles are produced. The outermost layer of the HIV particle is the envelope

HIV Structure

Outline HIV Definition HIV Structure HIV History HIV life cycle HIV Transmission AIDS (HIV Infection) AIDS Symptoms References

HIV History A type of chimpanzee in West Africa is the source of HIV infection in humans. The chimpanzee version of the immunodeficiency virus was transmitted to humans and mutated into HIV when humans hunted these chimpanzees. Over decades, the virus slowly spread across Africa and later into other parts of the world.

HIV History The earliest known case of infection with HIV-1 in a human was detected in a blood sample collected in 1959 from a man in Kinshasa, Democratic Republic of the Congo. (How he became infected is not known.) Genetic analysis of this blood sample suggested that HIV-1 may have stemmed from a single virus in the late 1940s or early 1950s.

Outline HIV Definition HIV Structure HIV History HIV life cycle HIV Transmission AIDS (HIV Infection) AIDS Symptoms References

HIV life cycle The seven stages of the HIV life cycle are: 1) binding 2) fusion 3) reverse transcription 4) integration 5) replication 6) assembly 7) budding

HIV life cycle

Outline HIV Definition HIV Structure HIV History HIV life cycle HIV Transmission AIDS (HIV Infection) AIDS Symptoms References

HIV Transmission HIV transmission can occur by : HIV Sexually Transmission HIV Non-sexual Transmission

HIV Sexually Transmission HIV sexually transmission infection occurs by : Contact with pre-ejaculate  Contact with semen   Contact with vaginal fluids

HIV Non-sexual Transmission Non-sexual transmission can occur by : Transfer of blood From an infected mother to her infant through breast milk An HIV-positive mother can transmit HIV to her baby both during pregnancy and childbirth 

HIV Transmission

Outline HIV Definition HIV Structure HIV History HIV life cycle HIV Transmission AIDS (HIV Infection) AIDS Symptoms References

AIDS (HIV Infection) AIDS is a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. Without treatment, average survival time after infection with HIV is estimated to be 9 to 11 years, depending on the HIV subtype

Outline HIV Definition HIV Structure HIV History HIV life cycle HIV Transmission AIDS (HIV Infection) AIDS Symptoms References

AIDS Symptoms There are many AIDS symptoms and these include : Being tired all of the time Swollen lymph nodes in neck or groin Fever that lasts for more than 10 days Unexplained weight loss Yeast infections in  mouth, throat, or vagina Severe, long-lasting diarrhea Unexplained bleeding

AIDS Symptoms

Outline HIV Definition HIV Structure HIV History HIV life cycle HIV Transmission AIDS (HIV Infection) AIDS Symptoms References

References www.presentationszone.com www.wikibedia.org https://study.com https://aidsinfo.nih.gov www.theaidsinstitute.org www.webmd.com