Blood in saliva of patients with acquired immunodeficiency syndrome: Possible implication in sexual transmission of the disease

1994 ◽  
Vol 42 (1) ◽  
pp. 38-41 ◽  
Author(s):  
Marcello Piazza ◽  
Antonio Chirianni ◽  
Ludovico Picciotto ◽  
Pietro Tullio Cataldo ◽  
Guglielmo Borgia ◽  
...  
2021 ◽  
pp. 197-212
Author(s):  
Quarraisha Abdool Karim ◽  
Urisha Singh ◽  
Cheryl Baxter ◽  
Salim S. Abdool Karim

This chapter traces the history of human immunodeficiency virus (HIV) from its origins, remarkable scientific advances, and unprecedented global responses through to the current state of the epidemic, progress towards ending acquired immunodeficiency syndrome (AIDS) and remaining challenges. It explains the origins of HIV-1 and HIV-2, the development of a surveillance system, and the viral structure. It outlines different antiretroviral drugs used in the treatment of HIV infections, and current drug research. The prevention of both mother-to-child transmission and sexual transmission is outlined, including pre-exposure prophylaxis (PrEP) use. The development of modern technologies and social media to help people living with HIV is covered. Programmes to modify behaviour and reduce risk from injecting drug use are explained.


Author(s):  
G.I. Mavrov ◽  
Y.V. Scherbakova ◽  
K. Ye. Ishcheikin ◽  
V.I. Kameniev ◽  
Ya. A. Yemchenko

Prevention of human immunodeficiency virus transmission through intercourse consists in combining highly effective biomedical, behavioural, and structural interventions. The purpose of this review was to summarize our own and global studies on the sexual transmission of human immunodeficiency virus through the mucous membranes of the genital organs. Global reports of the United Nations agency on the fight against acquired immunodeficiency syndrome, statistical reports of individual countries (in particular, Ukraine), materials of the World Health Organization for the period from 2000 to 2018 were analyzed. Improving and implementing measures to prevent the sexual transmission of human immunodeficiency virus are extremely necessary to halt the global epidemic of acquired immunodeficiency syndrome and to finally overcome it. Studies on animal models and the investigation of acute infection pathogenesis in humans have revealed vulnerabilities in the behaviour of the virus during penetration through the mucous membrane of the genital organs in the very early stages of infection. The data obtained open up new directions for the use of prophylactic vaccines and antiretroviral drugs to prevent the development of systemic infection, with the depletion of CD4 T cells. These studies enabled us to conclude that prevention strategies should target the earliest stages of infection for the following reasons: the vulnerability of the virus, which at an early stage is located in small populations of the founding cells at the site of entry for the infection; in order to develop as a systemic infection, the local spread of the virus is first necessary; the adverse effects that develop rapidly are associated only with a systemic infection. Thus, in near future, the effectiveness of the prevention of human immunodeficiency virus transmitted through sexual intercourse will depend on the solution of scientific and practical issues of immunology.


1994 ◽  
Vol 3 (2) ◽  
pp. 113-136 ◽  
Author(s):  
Pamela Stratton ◽  
Nancy J Alexander

Sexual transmission is the most common route of spread of human immunodeficiency virus (HIV), with heterosexual transmission of HIV infection accounting for 90% of those infected in 1992 and over 75% of the 10–12 million of those infected to date worldwide. Yet, heterosexual transmission is poorly understood. Since HIV can be transmitted from HIV-infected people who are asymptomatic as well as from those who have the acquired immunodeficiency syndrome (AIDS), we must better define the potential for transmission of HIV from HIV-infected individuals as well as the factors which influence the susceptibility of HIV-uninfected individuals.


1989 ◽  
Vol 19 (1) ◽  
pp. 75-92 ◽  
Author(s):  
Sandra K. Schwarcz ◽  
George W. Rutherford

The acquired immunodeficiency syndrome (AIDS) was first described as a disease of homosexual men. The first cases of AIDS in children were reported in 1982 and involved a transfusion recipient and four infants born to women at increased risk for AIDS. Infants may acquire their infection perinatally or possibly postnatally through infected breast milk. Parenterally acquired infection, through transfusion of blood or blood products, occurs in infants, children, and adolescents. Adolescents are also at risk for infection through sexual transmission and through shared needles among intravenous drug users. By January 1987, 1.4% of the AIDS cases were in children less than 13 years old, and 0.4% were in adolescents 13 to 19 years old. Additionally, 4.4% of the total AIDS cases were reported in 20 to 24 year olds, which most likely reflects infection which occured during adolescence. In children less than 13 years old, infection occurred primarily thorugh perinatal transmission from mothers who were intravenous drug users or sexual partners of intravenous drug users. Adolescent cases of AIDS have followed adult patterns of transmission with most cases resulting from sexual transmission. As the prevalence of infection with the human immunodeficiency virus increases, increases in drug-use-associated transmission in women followed by perinatal transmission to infants and sexual transmission in adolescents seems likely to occur. To prevent further spread, health agencies must develop and target extensive AIDS prevention campaigns at adolescents, young adults, and sexually active women.


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