In the last 15 years,
antiretroviral therapy (ART) has been the most globally impactful life-saving
development of medical research. Antiretrovirals (ARVs) are used with great
success for both the treatment and prevention of HIV infection. Despite these
remarkable advances, this epidemic grows relentlessly worldwide. Over 2.1
million new infections occur each year, two-thirds in women and 240,000 in
children. The widespread elimination of HIV will require the development of
new, more potent prevention tools. Such efforts are imperative on a global
scale. However, it must also be recognised that true containment of the
epidemic requires the development and widespread implementation of a scientific
advancement that has eluded us to date—a highly effective vaccine. Striving for
such medical advances is what is required to achieve the end of AIDS…
Even with all the biomedical
and behavioural tools available today, HIV continues to be a formidable
pathogen, altering the health economics and public health strategies of most
countries worldwide. Of the 35 million HIV-infected individuals worldwide in
2014, more than half did not know their HIV status, and over a third were not
receiving ARVs [1] despite the availability of affordable
point-of-care diagnostics and treatments. Adoption of “universal test and
treat” approaches, extension of medical male circumcision programs, universal
access to basic harm reduction services for people who inject drugs, and more
widespread use of PrEP in targeted populations can do much to “bend the curve”
and initiate a process to slow the rate of new HIV infections (Table 4). Such efforts are imperative on a global scale.
However, it must also be recognised that true containment of the epidemic
requires the development and widespread implementation of a scientific advance
that has eluded us to date—a highly effective vaccine. There are potential
synergies that will accrue from an integrated approach involving treatment,
microbicides, and HIV vaccines (Fig 2). Various mathematical models agree that
treatment roll-out on its own will decrease HIV incidence over time. However,
when a 30% preventative HIV vaccine was introduced to a model with expanding
treatment access in southern Africa, incidence was predicted to be 67% lower
over time compared to a scenario with no vaccine introduction [35].
Below: Medical interventions required to end the epidemic of HIV
Below: The spectrum of biomedical innovation required to end AIDS
By: Glenda E. Gray,1,2,* Fatima Laher,2 Tanya Doherty,1,3,4 Salim Abdool Karim,5,6 Scott Hammer,7 John Mascola,8 Chris Beyrer,9,10 and Larry Corey11
1South African Medical Research Council,
Cape Town, South Africa
2Perinatal HIV Research Unit, Faculty of
Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
3School of Public Health, University of
Western Cape, Bellville, South Africa
4School of Public Health, University of the
Witwatersrand, Johannesburg, South Africa
5Centre for the AIDS Programme of Research
in South Africa, University of KwaZulu-Natal, Durban, South Africa
6Mailman School of Public Health, Columbia
University, New York City, New York, United States of America
7Columbia University Medical Center, New
York City, New York, United States of America
8Vaccine Research Center, National
Institute of Allergy and Infectious Diseases, National Institutes of Health.
Bethesda, Maryland, United States of America
9Johns Hopkins Bloomberg School of Public
Health, Baltimore, Maryland, United States of America
10The International AIDS Society, Geneva,
Switzerland
11HIV Vaccine Trials Network, Vaccine and
Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle,
Washington
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