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Global progress in both preventing and treating HIV emphasizes the benefits of sustaining investment in HIV/AIDS over the longer term. The latest report by the World Health Organization (WHO), UNICEF and UNAIDS Report on the global HIV/AIDS response indicates that increased access to HIV services resulted in a 15 percentÂ reduction of new infections over the past decade and a 22 percentÂ decline in AIDS-related deaths in the last five years.
"It has taken the worldÂ 10 years to achieve this level of momentum," says Gottfried Hirnschall, director of WHO's HIV Department. "There is now a very real possibility of getting ahead of the epidemic. But this can only be achieved by both sustaining and accelerating this momentum over the next decade and beyond."
Hope for future progress
Advances in HIV science and programme innovations over the past year add hope for future progress. In times of economic austerity it will be essential to rapidly apply new science, technologies and approaches to improve the efficiency and effectiveness of HIV programs in countries.
What is already working
The report highlights what is already working.
- Improved access to HIV testing services enabled 61 percentÂ of pregnant women in eastern and southern Africa to receive testing and counseling for HIV - up from 14 percentÂ in 2005.
- Close to half (48 percent) of pregnant women in need receive effective medicines to prevent mother-to-child transmission of HIV (PMTCT) in 2010.
- Antiretroviral therapy (ART), which not only improves the health and well-being of the infected people but also stops further HIV transmission, is available now for 6.65 million people in low- and middle-income countries, accounting for 47 percentÂ of the 14.2 million people eligible to receive it.
- Investment in HIV services could lead to billions in increased economic activity
When people are healthier, they are better able to cope financially. The report acknowledges that investment in HIV services could lead to total gains of up to US$34 billion by 2020 in increased economic activity and productivity, more than offsetting the costs of ART programmes.
2011 a game changing year
2011 has been a game changing year. With new science, unprecedented political leadership and continued progress in the AIDS response, countries have a window of opportunity to seize this momentum and take their responses to the next level, says Paul De Lay, deputy executive director of programs forÂ UNAIDS. By investing wisely, countries can increase efficiencies, reduce costs and improve on results. However, gains made to date are being threatened by a decline in resources for AIDS.
What still needs to be done
The report also points to what still needs to be done.
- More than half of the people who need antiretroviral therapy in low- and middle-income countries are still unable to access it. Many of them do not even know that they have HIV.
- Despite the growing body of evidence as to what countries need to focus on to make a real impact on their epidemics, some are still not tailoring their programmes for those who are most at risk and in need. In many cases, groups including adolescent girls, people who inject drugs, men who have sex with men, transgender people, sex workers, prisoners and migrants remain unable to access HIV prevention and treatment services.
- Worldwide, the vast majority (64 percent) of people aged 15-24 living with HIV today are female. The rate is even higher in sub-Saharan Africa where girls and young women make up 71 percentÂ of all young people living with HIV - essentially because prevention strategies are not reaching them.
Populations still marginalized
Key populations are continually marginalized. In Eastern Europe and Central Asia, more than 60 percentÂ of those living with HIV are people who inject drugs. But injecting drug users account for only 22 percentÂ of those receiving ART.
Although better services to prevent mother to child transmission of HIV have averted some 350 000 new infections among children, some 3.4 million children are living with HIV - many of whom lack HIV treatment. Only about one in four children in need of HIV treatment in low- and middle-income countries received it in 2010, as compared to 1 in 2 adults.
Progress for children is slower
"While there have been gains in treatment, care and support available to adults, we note that progress for children is slower," says Leila Pakkala, director of the UNICEF Office in Geneva. The coverage of HIV interventions for children remains alarmingly low. Through concerted action and equity-focused strategies, we must make sure that global efforts are working for children as well as adults.
HIV in regions and countries
In 2010, HIV epidemics and responses in different parts of the world vary with shifting trends, progress rates and outcomes.
Sub-Saharan Africa recorded the biggest overall annual increase - 30 percentÂ - in the number of people accessing ART. Three countries (Botswana, Namibia and Rwanda) have achieved universal coverage (80 percent) for HIV prevention, treatment and care services. The regional ART coverage rate stood at 49% at the end of 2010. Approximately 50 percentÂ of pregnant women living with HIV receive treatment to prevent mother-to child transmission of HIV. And 21 percentÂ of children in need are able to get paediatric HIV treatments. There were 1.9 million new infections in the region, where 22.9 million people are living with HIV. There are some major disparities in progress between different parts of the region. Countries in Eastern and Southern Africa have reached much higher coverage rates for ART (56 percent) and PMTCT (64 percent) than countries in Western and Central Africa (30 percentÂ and 18 percentÂ respectively).
Asia shows a stabilizing epidemic overall, but new infections are very high in some communities. Of the 4.8 million people living with HIV in Asia, nearly half (49 percent) are in India. Antiretroviral treatment coverage is increasing with 39 percentÂ of adults and children in need of HIV treatment having access. Coverage of PMTCT services is relatively low at 16 percent.
Eastern Europe and Central Asia presents a dramatic growth in HIV, with new infections increasing by 250 percentÂ in the past decade. Over 90 percentÂ of these infections occur in just two countries: Russia and Ukraine. The region demonstrates high coverage rates for PMTCT and paediatric HIV treatment (with 78 percentÂ and 65 percentÂ coverage rates respectively). However, ART coverage is very low at 23 percent, particularly among the most affected people - the ones who inject drugs.
Middle East and North Africa records the highest number of HIV infections ever in the region (59 000) in 2010, which represents a 36 percentÂ increase over the past year. Coverage of HIV services are very low in the region: 10 percentÂ for ART, 5 percentÂ for pediatric treatment and 4 percentÂ for PMTCT.
Latin America and the Caribbean have a stabilizing epidemic with 1.5 million living with HIV in Latin America and 200 000 in the Caribbean. HIV is predominantly among networks of men who have sex with men in Latin America. In the Caribbean though, women are the more affected group accounting for 53 percentÂ of people living with HIV. The region has ART coverage of 63 percentÂ for adults and 39 percentÂ for children. Coverage for effective PMTCT regimen is relatively high at 74 percent.
Countries are already showing marked efficiency gains in HIV programs: South Africa reduced HIV drug costs by more than 50 percentÂ over a two-year period by implementing a new tendering strategy for procurement. Uganda saved US$2 million by shifting to simpler paediatric regimens. Such efficiencies are promoted through Treatment 2.0 - an initiative launched by WHO and UNAIDS in 2010 to promote simpler, cheaper and easier-to-deliver HIV treatment and diagnostic tools, combined with decentralized services that are supported by communities.
A WHO, UNAIDS, UNICEF "Elimination Initiative" aims to eliminate new HIV infections among children by 2015 and keep their mothers alive.
WHO is developing new guidance on the strategic use of antiretroviral drugs for both prevention and treatment.
WHO's "Global Health Sector Strategy on HIV/AIDS, 2011-2015," endorsed by the World Health Assembly in May 2011 highlights the importance of continuing efforts to optimize HIV treatment and "combination" prevention - the use of a range of different approaches to reduce people's risk of infection.
The 2011 Report on the global HIV/AIDS response is the comprehensive report on both the epidemiology and progress rates in access to HIV services globally and in regions and countries. It has been jointly developed by WHO, UNICEF, UNAIDS, in collaboration with national and international partners.