HIV/AIDS

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avril 10, 2026

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avril 10, 2026

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"Uganda’s success in reducing HIV prevalence and improving reproductive-health status compared with neighbouring countries has been attributed to the selective emphasis on the abstinence and being faithful strands of the ABC strategy in the country’s HIV programmes. The suggestion has been made that later onset of sexual activity and a reduction in non-regular sexual partners (a 65% reduction from 1991 to 1998) have been more important than condom use in curbing the HIV epidemic. These conclusions have been interpreted as providing evidence of the merit of abstinence-based approaches to HIV prevention generally. Several features of Uganda’s epidemiological situation and social-context suggest that Uganda’s success should not be attributed to a few specific interventions. The first feature relates to the timing of events. The fall in prevalence of HIV corresponds to a drop in incidence from the beginning of 1985, when Uganda did not have public national HIV-prevention programmes in place. Furthermore, as our data show, the trend towards older age at first intercourse occurred gradually for women from the 1970s to the present—i.e., before the start of HIV-prevention programmes—for men remarkably little change in age at first intercourse has taken place in recent decades. However, evidence shows that other changes in behaviour have taken place. Condoms were cautiously and gradually introduced in Uganda and were largely unavailable to the general population during the 1980s, but rates of condom use were high in high-risk groups, such as sex workers."

- HIV/AIDS

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"Although it is true that condoms are not 100-percent effective in preventing HIV infection, they do reduce the risk of transmission significantly. Comparing condom use to a suicidal dare, as Cardinal Trujillo does, is scientifically inaccurate and socially irresponsible. A preponderance of medical research demonstrates that condoms help prevent the spread of HIV. For example, the European Study Group on Heterosexual Transmission of HIV followed 124 discordant couples (in which only one of the pair is infected with HIV) who consistently used condoms. Over a two-year period and roughly fifteen thousand sexual acts, none of the HIV-negative partners contracted the virus. Thai investigators examining the impact of condom use among the military reported that new infections dropped from 12.5 percent in 1993 to 6.7 percent in 1995. The number of new HIV infections in Thailand plummeted after the introduction of a “100-percent condom use” program. Uganda earned its reputation as a paragon of HIV prevention for its now-famous ABC program: Abstain, Be faithful, and Consistent, Correct use of Condoms. Following the implementation of ABC, HIV infection in Uganda decreased from between 15 and 20 percent of the population in the early 1990s to 5 percent in 2003. A comparative analysis of Ugandan population-based surveys in 1989 and 1995 concluded that delaying the age of first sexual encounters, decreasing the number of casual partners, and increasing condom use all contributed to Uganda’s success."

- HIV/AIDS

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"By the time AIDS was identified, its mode of transmission via sexual intercourse documented, and tests for HIV infection developed, the disease was already widespread among the gay population, especially in San Francisco and New York City. Combined efforts by gay community organizations and public health officials led to the rapid dissemination of knowledge about AIDS and the adoption of safer sex practices by gays. The result was "a dramatic decline in risk practices for HIV transmission...gay men have reduced the number of sex partners, have fewer anonymous sexual encounters, have switched from shorter to longer term relationships, and engaged in less anal intercourse or consistently used condoms (Ehrhardt, Yingling, and Warne, 1991)." More recently however, there has been little further increase in safe sex practices among homosexuals and even some back sliding among some who have tired of the diligence and restrictions required by safer sexual practices, among some minority groups, and among younger gays who did not experience the initial onslaught of the epidemic (Catania, Stone, Binson, and Dolcini, 1995; Ehrhardt, 1992; Ehrhardt, Yingling, and Warne, 1991; Goldbaum, Yu, and Wood, 1996; Kalichman, 1996; Osmond, et al., 1994; Ostrow, Beltran, and Joseph, 1994; Carballo-Dieguez and Dolezal, 1996; and Ostrow, Difranceisco, and Kalichman, n.d.). As a result, same gender sexual intercourse among men remains the most frequent mode for the transmission of AIDS ("Update," 1995; Levin, 1995; and State and Local, 1997; CDC, 2002).17"

- HIV/AIDS

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"Undoubtedly because of the advent of AIDS and the dissemination of safer sex messages, condom use doubled from the late 1970s/early 1980s to the late 1980s (Table 18)(see also Anderson, 2003; Anderson, et al., 1999; Bankole, Darrocht, and Singh, 1999; Cates, 2001; Douglas, et al., 1997; Graham et al., 2005; Moran et al., 1990; Murphy and Boggess, 1998; and Ringheim, 1993). From the mid-1960s to the mid-1970s just over a fifth of women used a condom at the time of their first intercourse. By the mid-1980s this had almost doubled to 42%. Similarly, in 1979 21% of teenage males reported using a condom at the time of their most recent intercourse and in 1988 the level increased to 57.5%.22 Condom use has continued to increase since then (Beckman, Harvey, and Tiersky, 1996; Catania, Binson, Dolcini, Stall, Choi, Pollack, Hudes, Canchola, Phillips, Moskowitz, and Coates, 1995; Catania, Coates, Peterson, Dolcini, Kegles, Siegel, Golden, and Fullilove, 1993; Catania, Stone, Binson, and Dolcini, 1995; Ford and Norris, 1995; Ku, Sonenstein, and Pleck, 1994; Moore, et al., 1992; Division of Epidemiology and Prevention Research, et al., 1992; Pleck, Sonenstein, and Ku, 1993; Ku, Sonenstein, and Pleck, 1993; Strunin and Hingson, 1992; Piccinino and Mosher, 1998; and Peipert, Domagalski, Boardman, Daamen, McCormack, and Zinner, 1997; Manlove, Ryan, and Franzetta, 2004; Mosher et al., 2005). For example, the YRBS shows that condom use increased for both males and females in the 1990s through 2003 and condom use at last intercourse among never married males 15-19 grew by 10 percentage points from 1988 to 1995 (Table 18). However, while condom use has grown appreciably, it is still far below the general and consistent use called for by safer sex practices (Kost and Forrest, 1992; Pleck, Sonenstein, and Ku, 1991; Potter and Anderson, 1993; Leigh, Morrison, Trocki, and Temple, 1994; Peterson, Catania, Dolcini, and Faigeles, 1993; Sabogal, Faigeles, and Catania, 1993; Grinstead, Faigeles, Binson, and Eversley, 1993; Catania, Coates, Golden, Dolcini, Peterson, Kegeles, Siegel, and Fullilove, 1994; Nguyet, Maheux, Beland, and Pica, 1994; Binson, Dolcini, Pollack, and Catania, 1993 and Douglas, et al., 1997). Among sexually experienced college students in 1995 only 38% reported always using a condom (Douglas, Collins, et al., 1997). Likewise, a 1991 national survey of men 20-39 found that only 26.5% of sexually active men had used a condom during the last four weeks and even among unmarried men with no regular sexual partner only 46% had used a condom during the prior month (Tanfer, Grady, Klepinger, and Billy, 1993, see also, Grady, Klepinger, Billy, and Tanfer, 1993 and Catania, et al, 1992). Similarly, among unmarried women 15-44 in 1990 with 2+ partners in the last 3 months only 16% always used condoms and 39% never did (Mosher and Pratt, 1993). Also, among both men and women 18-24 in 1996 whose most recent sexual partner was not someone they were in an ongoing relationship with only 56% had used a condom (Smith, 1998)."

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"HIV/AIDS is a threat that is still invisible to the Malaysian public but it is nevertheless there. Already we have lost many citizens to an otherwise preventable disease because we have not been able to see the enemy. The enemy in this case is a tiny virus whose sole survival is dependent on the ignorance and denial by many that such a virus exists. HIV has been able to take advantage of all of man's weaknesses, but specifically man's unwillingness to accept the existence of what it cannot and does not want to see. And in so doing has wreaked devastation and suffering far beyond what man has ever been able to do by himself. Consider this: in 1999, 200,000 Africans were killed due to conflict. But two million Africans died of AIDS. We may be able to see a human enemy, we may equip ourselves with expensive guns in order to fight that enemy but we cannot inflict the sort of suffering that a tiny virus can inflict. This suffering is not limited to those who have been infected. 13.2 million children around the world have become orphans because of AIDS. In some countries in Africa, life expectancies have been shortened by some 20 years and the entire demographic picture of those countries have changed. A generation, those in the young productive ages have been lost and the impact on countries cannot be easily rectified. Essentially, AIDS is an impoverishing disease for countries because it strikes at the very people who can help to develop a country. In addition, AIDS is altering the global economic scenario, perhaps in a more unfair way than globalisation itself. It is clear from the global AIDS pandemic that the countries that are suffering most from AIDS are those that are the poorest, the ones most crippled by debt, the ones least stable. In addition AIDS makes them even poorer because these countries have the least capability to provide treatment for those who have become infected. The net result is that the gap between the rich and the poor, the North and the South, becomes even wider."

- HIV/AIDS

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"In 2003 the Methodist Conference adopted a resolution, Notice of Motion 18, which read: “AIDS is the new apartheid. In the name of Christ the healer, who reached out to touch and comfort the marginalised of his day, Conference stands alongside all who are suffering from the HIV/AIDS pandemic in the world today. We are one body in Christ; when one suffers, we all suffer. To this end: 1. We urge the churches to speak openly and courageously about HIV/AIDS: *to embrace – and not reject – afflicted family members *to encourage persons to confesstheir HIV/AIDS positive status *to uphold sufferers in our worship, liturgy and songs *to speak openly about preventative measures including safe sex practices *to advocate for the free distribution of condoms, which save lives. 2. We urge all governments to fight HIV/AIDS: *to acknowledge the extent of HIV/AIDS in their countries * to fund education, health care, and nutrition programmes to combat the spread of the disease and to provide life-saving drugs to all persons regardless of their ability to pay, especially pregnant women and those marginalised by war, poverty, gender or age. * to pressurise pharmaceutical companies and multi-national corporations to release cheap generic drugs to the millions suffering from HIV/AIDS * to promote legislation and judicial practices that protect women and children from sexual violence and domestic abuse. 3. Conference resolves to learn from and work with our overseas partner churches.”"

- HIV/AIDS

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"In 1984, the US Secretary of Health and Human Services Margaret Heckler announced at a press conference in Washington, DC, that scientists had successfully identified the virus that later became known as HIV -- and predicted that a preventative vaccine would be ready for testing in two years. Nearly four decades and 32 million deaths later, the world is still waiting for an HIV vaccine. Instead of a breakthrough, Heckler's claim was followed by the loss of much of a generation of gay men and the painful shunning of their community in Western countries. For many years, a positive diagnosis was not only a death sentence; it ensured a person would spend their final months abandoned by their communities, while doctors debated in medical journals whether HIV patients were even worth saving. The search didn't end in the 1980s. In 1997, President Bill Clinton challenged the US to come up with a vaccine within a decade. Fourteen years ago, scientists said we were still about 10 years away. The difficulties in finding a vaccine began with the very nature of HIV/AIDS itself. "Influenza is able to change itself from one year to the next so the natural infection or immunization the previous year doesn't infect you the following year. HIV does that during a single infection," explains Paul Offit, a pediatrician and infectious disease specialist who co-invented the rotavirus vaccine. "It continues to mutate in you, so it's like you're infected with a thousand different HIV strands," Offit tells CNN. "(And) while it is mutating, it's also crippling your immune system.""

- HIV/AIDS

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"AIDS was diagnosed and recognized as a new disease in 1981 in the USA with the subsequent discovery of HIV-1 as the causative agent in 1983. The two types of HIV identified to date, HIV-1 and HIV-2, display similar morphology, tropism, and modes of transmission; however, they are genetically and antigenically divergent. HIV-1 is responsible for over 95% infections worldwide, and the different strains of HIV-1 are classified into four groups: major (M), non-outlier (N), outlier (O), and P. The group M HIV-1 is the predominant circulating strain responsible for >90% infections worldwide, and hence, for the global HIV/AIDS epidemic; viruses belonging to the other three groups are endemic in certain African countries and cause fewer infections. HIV arose from cross-species zoonotic transmissions of simian immunodeficiency viruses (SIV) from monkeys to great apes and ultimately to humans. Four independent cross-species transmissions of SIV from chimpanzees (SIVcpz) or gorillas (SIVgor) to humans gave rise to the four HIV-1 groups: M and N from SIVcpz, and O and P from SIVgor. Notably, the pandemic HIV-1 group M strain arose in Cameroon almost a century ago from a single transmission event involving an SIVcpz-infected chimpanzee and a human. The group M strains are further classified into nine subtypes (A, B, C, D, F, G, H, J, and K); each subtype is genetically distinct but phylogenetically equidistant from each other. Two or more of these subtypes can further recombine their genetic material to generate mosaic strains known as circulating recombinant forms (CRFs); around 97 CRFs have been reported to date. The globally dominant HIV-1 subtype C accounts for nearly 50% infections worldwide and is concentrated in Southern Africa and India. The HIV-1 subtype B is dominant in the Americas, Western Europe, and Australasia, and accounts for around 10% global infections. Unlike HIV-1, HIV-2 is largely endemic in West Africa, although the virus has spread to other parts of world in the past decade. Approximately 1-2 million of the PLHIV are infected with HIV-2. The different strains of HIV-2 are classified into nine different groups-A to I, which arose from nine independent cross-species transmission events involving the SIV from sooty mangabey monkeys (SIVsmm). Relative to HIV-1 infection, HIV-2 infection is generally marked by lower viral load, longer asymptomatic period, slower target cell depletion and disease progression, and lower transmission rates. However, in the absence of cART, HIV-2 infection eventually leads to AIDS and, ultimately, death."

- HIV/AIDS

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"Our more recent work (in progress) provides further evidence on the intricate development effects of the Christian influence in Africa (Cagé & Rueda 2016b). We study the role played by early missionary investments in sub-Saharan Africa to explain HIV/AIDS prevalence nowadays. On the one hand, missionaries were the first to invest in medicine in a number of countries. The history of modern medicine in sub-Saharan Africa is indeed closely linked to the development of missionary activity. According to the World Missionary Atlas (Beach and Fahs 1925), there were 150 missionary physicians in Africa in 1925, and more than 235 nurses working with nearly 500 trained native nurses in 116 hospitals and 366 dispensaries. Moreover, the early Christian provision of health care persisted after colonisation and is particularly influential in the design of health care in poor countries (Idler 2014). On the other hand, health investments are not the only way through which missionary activity may have affected the propagation of HIV/AIDS. Christian values also affect sexually transmitted diseases and there is quantitative and historical evidence that missionaries actively changed sexual behaviours (Vaughan 2007, Doyle 2013, Mantovanelli 2014). We show that the net effect of proximity to historical mission settlements on HIV prevalence is negative. As seen in Figure 4, regions far from missions tend to have less HIV prevalence today. This general correlation cannot be fully captured by the fact that missions tend to be located in what are today more densely populated areas, or by any other geographical determinant of missionary activity. However, this negative effect can be captured by negative perceptions of condom use and contraception. Among regions historically close to missionary settlements, proximity to a health investment is associated with lower prevalence rates, more acceptance of contraception, and lower exposure to risky behaviours, such as buying the services of sex workers."

- HIV/AIDS

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"Transmission of the human immunodeficiency virus (HIV) primarily occurs across mucosal surfaces. In particular, the rectum and colon mucosa are important as a portal of entry and during early disease progression, respectively. In the United States, 66% of all new HIV infections in 2017 were in men who have sex with men (MSM), with receptive anal intercourse being the main mode of transmission. Substantial gut microbiome compositional shifts have been previously described in HIV-infected populations; however, we now know the most prominent compositional changes are associated with sexual behavior. The MSM gut microbiome is dominated by Prevotella species compared with the Bacteroides-rich microbiome of culturally westernized men who have sex with women (MSW). Microbiome shifts associated with HIV infection are more subtle, typically require a large cohort to observe, and have been linked with low current and nadir CD4+ T cell counts and viremia. Our group investigated HIV-associated microbiome compositional effects on immune activation in vitro 9 and recently published an evaluation of the effects of human fecal microbiota transplant on immune activation in a gnotobiotic mouse model. These studies revealed the fecal microbiota of MSM, regardless of HIV status, elevates immune activation over that seen with the fecal microbiota of MSW. Additionally, we observed that the MSM microbiota enhanced in vitro HIV infection. Here, the discussion will focus on the question, can the microbiota of MSM influence HIV transmission? We provide additional data that suggests the unique gut microbiota in MSM drives the influx of a population of CD4+ T cells expressing the HIV co-receptor CCR5 into the gut, supporting a link between the gut microbiota in HIV-negative MSM, the mucosal immune environment, and HIV transmission."

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