The use of back projection to estimate HIV prevalence among pregnant women in Australia

A statistical method similar to back projection was used to estimate the number of children infected with HIV perinatally from the number of children with AIDS due to perinatal HIV infection. By 31 December 1994 there were 18 children born in Australia and reported to have AIDS due to perinatal HIV infection. Based on these 18 AIDS cases, it was estimated that to the end of 1994 there were between 35 and 57 children born in Australia and infected with HIV perinatally, with a preferred estimate of 43 children. Assuming that the transmission rate of HIV from infected mothers to their babies was in the range 15 to 35%, it was estimated that the prevalence of HIV infection among women giving birth in Australia had increased from 0.03 per 1000 (range 0.02-0.07 per 1000) in 1983-1985 to 0.09 per 1000 (range 0.05-0.20 per 1000) in 1992-1994. This range for the prevalence of HIV infection among pregnant women in 1992-1994 was consistent with estimates of the prevalence from screening studies, and suggests that the prevalence of HIV infection in pregnant women in Australia remains low.     

HIV in adolescents

Adolescence is a time of dramatic physical, emotional, cognitive, and social change that brings new vulnerabilities. Youth represent half of all new HIV infections in the United States and the rest of the world. The number of newly infected adolescents who acquire the disease behaviorally and the number of perinatally infected children surviving into adolescence have both contributed to this growth. This article reviews the most recent epidemiology of HIV/AIDS in adolescents, gives guidance on clinical practice, including medical and psychosocial care, and examines prevention issues, including counseling and testing, which are needed to make programs effective for youth.     

Paediatric HIV/AIDS disclosure: towards a developmental and process-oriented approach

As antiretroviral therapy becomes more widely available in low-resource settings and children with HIV/AIDS live for longer periods, disclosure of HIV diagnosis to infected children is becoming increasingly important. This article reviews the current literature on HIV-related disclosure in light of theories of cognitive development, and argues for the adoption of a process-oriented approach to discussing HIV with infected children. Disclosure presents unique challenges to healthcare workers and caregivers of children with HIV/AIDS that include controlling the flow of information about the child's HIV status to him/her and deciding on what is in his/her best interest. Health care workers' and caregivers' views regarding disclosure to children may often be contradictory, with healthcare workers likely to support disclosing the diagnosis of HIV/AIDS to children and caregivers more reluctant to discuss the disease with them. There is a clear need for practical interventions to support paediatric HIV disclosure which provide children with age-appropriate information about the disease.     

HIV/AIDS and family support systems: A situation analysis of people living with HIV/AIDS in Lagos State

Current statistics about the HIV/AIDS epidemic in Nigeria do not reveal the broader social and economic impacts of the disease on the family. The study therefore primarily aimed to address the socio-economic effects of HIV infection on individuals and their families. The study was carried out in Lagos State. In-depth interviews were employed to collect information from 188 people living with HIV/AIDS through support groups in the state, while four focus group discussions were conducted to elicit information from people affected by AIDS about the socio-economic impacts of HIV/AIDS on families in Nigeria. From the survey, among people living with HIV/AIDS, 66% of females and males were in the age group 21–40 years, while 10% were older people above 60 years of age. Findings revealed that as HIV/AIDS strikes at parents, grand parents are assuming responsibility for bringing up the children of the infected persons and the orphans of those killed by the virus. It was striking that some of the older caregivers could not meet the requirement of these children. They are often forced to work more than they would have, or borrow in order to cope with the needs of these extra mouths. Some of the infected people have sold their properties to enable them to cope with the economic effects of the virus, while their children have had to drop out of school, since they could not afford the school fees and other related expenses. It was suggested that PLWHA should be economically empowered with adequate medical treatment, in order to reduce the impact of the disease on the family.     

Italian consensus statement on paediatric HIV infection

The objective of this document is to identify and reinforce current recommendations concerning the management of HIV infection in infants and children in the context of good resource availability. All recommendations were graded according to the strength and quality of the evidence and were voted on by the 57 participants attending the first Italian Consensus on Paediatric HIV, held in Siracusa in 2008. Paediatricians and HIV/AIDS care specialists were requested to agree on different statements summarizing key issues in the management of paediatric HIV. The comprehensive approach on preventing mother-to-child transmission (PMTCT) has clearly reduced the number of children acquiring the infection in Italy. Although further reduction of MTCT should be attempted, efforts to personalize intervention to specific cases are now required in order to optimise the treatment and care of HIV-infected children. The prompt initiation of treatment and careful selection of first-line regimen, taking into consideration potency and tolerance, remain central. In addition, opportunistic infection prevention, adherence to treatment, and long-term psychosocial consequences are becoming increasingly relevant in the era of effective antiretroviral combination therapies (ART). The increasing proportion of infected children achieving adulthood highlights the need for multidisciplinary strategies to facilitate transition to adult care and maintain strategies specific to perinatally acquired HIV infection.     

HIV and AIDS in Haiti: recent developments

Both the seroprevalence and epidemiology of human immunodeficiency virus (HIV) infection have demonstrated substantial changes in Haiti since the beginning of the epidemic in the early 1980s. Although seroprevalence rates vary greatly according to the population group tested, surveys of healthy urban adults have indicated an increase in HIV infection from about 8% in 1986 to 11% in 1991. The rate in rural areas remains at about 3%. Tuberculosis, herpes zoster, malignant prurigo, and weight loss are the most common signs of HIV infection before the virus progresses to acquired immunodeficiency syndrome (AIDS). The most significant changes in the pattern of HIV transmission in Haiti have been a decline in the proportion of cases among bisexuals/homosexuals (from 50% in 1983 to 1% since 1987) or related to blood transfusion. Also striking has been a change in the geographic distribution of HIV. In 1982, 80% of those infected with HIV were from the capital Port-au-Prince, 10% were from other major cities, and 10% were from other countries. In 1990, only 65% of cases originated from the Port-au-Prince area. Finally, there has been a shift in the sex distribution of HIV, with women contributing 38% of cases in 1989-90 compared to only 15% in 1979-82. Disturbing are survey findings that HIV-infected women, or those with an infected partner, continue to have unprotected sexual intercourse and to take no steps to avoid pregnancy. As a result of the growing number of AIDS cases among women, children under 14 years of age now comprises 6.6% of all AIDS cases compared to 2.4% in 1988. Development of a form of contraception that is as effective against HIV transmission as the condom yet could be used without the consent of the male partner would be an important advance in AIDS prevention in Haiti.     

Combating HIV/AIDS in Mainland China: an epidemiological review of prevention and control measures

Two decades have already passed since the first HIV/AIDS case was described in 1981. Cumulatively, over 20 million people have unfortunately lost their lives, and more than 40 million people are now living with HIV, and most of them are from developing countries. China, as the biggest developing country, has an impact on the epidemic of HIV/AIDS. From the first case of AIDS diagnosed in Mainland China in 1985, the epidemic has spread at an alarming rate. The feature of HIV/AIDS spread in Mainland China concerns its geographical characteristics that can be described as occurring in three phases. According to data from World Health Organization (WHO), it was estimated that about 840,000 people are living with HIV/AIDS in China, and 80,000 of them have already developed AIDS. WHO warned that, if there were no effective preventive measures adopted, that the number of HIV/AIDS infected cases would reach 10 million in China by 2010.In this study, we described the current situation of the epidemic of HIV/AIDS, as well as an historic review. The development of policy-making and the control measures are also highlighted. The experience from China described in this study would hopefully be for more public awareness of this crisis that is threatening all the citizenry of China.     

Disclosure of the diagnosis of HIV/AIDS to children born of HIV-infected mothers

HIV disease in perinatally infected patients is now treated as a chronic illness of childhood. The effective use of highly active anti-retroviral therapy has contributed to the improvements in the prognosis of this illness. As this population matures, the issue of disclosure of diagnosis becomes more significant and part of their comprehensive medical care. The importance of disclosure relates directly to medication adherence, treatment compliance, sexual exploration, fears associated with premature death, and the child's developing autonomy. disclosure of HIV disease to an infected child poses complex issues, such as transmissibility, maternal guilt, more than one family member with the virus, and the potential for social stigma and isolation, among others. A change in perspectives is currently taking place regarding the process of disclosure, whereby it may be approached as a gradual discussion process over the life of the child. A method of gradual and partial disclosure to the child with consistent support by a multi-disciplinary team of providers has been a successful strategy for many children cared for at the New York Hospital-Cornell University Medical Center. Of 73 perinatally HIV-infected children who are 6 years of age or older, 41% have had complete disclosure and another 19% are partially disclosed. Continuous communication and negotiation among the members of the team, which includes the parents and caregivers, are vital to the gradual process leading to complete disclosure.     

The psychosocial issues of children with perinatally acquired HIV disease becoming adolescents: a growing challenge for providers

Today, providers caring for children who have perinatally acquired HIV disease treat them differently than they did less than a decade ago. As our knowledge of HIV and its treatment have grown, so have we and so have our children. We are seeing the first wave of adolescents with perinatally acquired HIV disease. This increased longevity has given new meaning to past challenges such as treatment regimens, medication adherence, disclosure, and permanency planning previously faced by providers, children, and their families. New challenges, such as adolescent treatment decisions, relationships, intimacy, college, and careers have been added to the list. As a prediatric nurse practitioner having "grown up" with perinatally acquired HIV disease in the last decade, I reflect on past challenges and offer a perspective on those that lie ahead. A multidisciplinary, family-centered support group intervention that was developed at our AIDS Center Program to assist families, older children, adolescents, and providers in facing these challenges is described.     

Household displacement and health risk behaviors among HIV/AIDS-affected children in rural China

When parents die of or are infected with HIV, children might have to leave their own household and be displaced to other living arrangements and some may even be displaced multiple times. The objective of this study is to examine the association between household displacement and health risk behaviors among AIDS orphans (children who have lost one or both of their parents to HIV/AIDS) and vulnerable children (children living with HIV-infected parents) in rural China. The sample consisted of 1015 children (549 AIDS orphans, 466 vulnerable children) in family-based care. The children were assigned to three displacement groups according to the number of household displacement (i.e., none, once, at least twice) after their parents became ill or died of HIV/AIDS. Cigarette smoking, alcohol use, violence, public property destruction, suicidal ideation, and suicide attempt were used to assess the health risk behaviors of these children. Both bivariate and multivariate tests were used to assess the differences in health risk behaviors among displacement groups. The findings indicated that children who were displaced at least twice were more likely to report a higher frequency of public property destruction and suicide ideation than those who were never displaced or displaced once. Multivariate analysis revealed that public property destruction, suicide ideation and suicide attempt were significantly associated with the household displacement among these children, controlling for gender, age, child status (AIDS orphans vs. vulnerable children), and the duration of household displacement. Results in the current study suggest that a stable living environment was important for both AIDS orphans and vulnerable children in communities with a high prevalence of HIV/AIDS. The government, community, and other agencies need to make efforts to avoid frequent household displacement among these children after the HIV-related infection or death of their parents.     

Neurologic disorders associated with AIDS retroviral infection

Neurologic disease occurs frequently in patients infected with the human immunodeficiency virus (HIV), and a large body of literature now exists detailing the various infections, neoplasms, and other conditions that can affect the central nervous system (CNS) or the peripheral nervous system in children and adults with AIDS, persistent generalized lymphadenopathy, or (in some cases) only serologic evidence of retroviral infection. Although certain opportunistic infections (toxoplasmosis, cryptococcosis, progressive multifocal leukoencephalopathy, and herpesviral infections) and CNS lymphomas often produce CNS disease in patients with AIDS, it is now clear that many cases of neurologic disease are caused by a group of disorders thought to be related to direct CNS infection by the AIDS retrovirus. Disease of the peripheral nervous system is also being increasingly recognized; some cases probably have an autoimmune basis.     

Assessing the risks for perinatal infection

The Centers for Disease Control and Prevention (CDC) recently conducted a review of 5,554 cases of children with perinatally acquired AIDS through December 1994 in order to determine the risks of perinatally acquired AIDS. CDC epidemiologist Teresa Hammett reported at the HIV Infection in Women: Setting A New Agenda conference in Washington, DC, that the data showed a significant risk of perinatal infection from women who were injection drug users or had heterosexual contact with a known drug user. Hammett also said that a maternal risk study currently is under way that evaluates information on the mother's medical record and/or information obtained through discussion with the mother. Programs that target mothers and their partners at high risk must be culturally and linguistically appropriate. The CDC, as part of its AIDS surveillance data analysis, also plans to implement studies of HIV risk behaviors among more recently infected women, and women with sexually transmitted diseases.     

Perinatal HIV: special considerations

The percentage of AIDS cases among women--particularly women of color--in the United States is increasing yearly. Despite this increase, there has been a relatively steady decline in the number of AIDS cases occurring perinatally. Regardless of the reasons HIV-infected couples choose to become pregnant, studies indicate that providing support, such as contraceptive counseling and assisted reproduction techniques, can improve the health outcome in the face of HIV-related challenges. Issues specific to antiretroviral therapy, including viral resistance, pregnancy outcomes, and adverse fetal effects, complicate the treatment of perinatal HIV. Postpartum case is yet another area that requires special consideration when supporting HIV-infected parents and children. The growing body of data on pregnancy and HIV may indicate a rising commitment to research of and support for the unique challenges HIV-infected families face. This article was adapted from an IAS-USA interactive case-based program, Cases on the Web, in November 2003.     

Mental health functioning among children and adolescents with perinatal HIV infection and perinatal HIV exposure

Mental health problems (MHPs) among children with perinatal HIV infection have been described prior to and during the highly active antiretroviral therapy (HAART) era. Yet child, caregiver and socio-demographic factors associated with MHPs are not fully understood. We examined the prevalence of MHPs among older children and adolescents with perinatal HIV exposure, including both perinatally HIV-infected (PHIV +) and perinatally HIV-exposed but uninfected (PHEU) youth. Our aims were to identify the impact of HIV infection by comparing PHIV + and PHEU youth and to delineate risk factors associated with MHPs, in order to inform development of appropriate prevention and intervention strategies. Youth and their caregivers were interviewed with the Behavior Assessment System for Children, 2nd edition (BASC-2) to estimate rates of at-risk and clinically significant MHPs, including caregiver-reported behavioral problems and youth-reported emotional problems. The prevalence of MHPs at the time of study entry was calculated for the group overall, as well as by HIV status and by demographic, child health, and caregiver characteristics. Logistic regression models were used to identify factors associated with youth MHPs. Among 416 youth enrolled between March 2007 and July 2009 (295 PHIV +, 121 PHEU), the overall prevalence of MHPs at entry was 29% and greater than expected based on recent national surveys of the general population. MHPs were more likely among PHEU than among PHIV + children (38% versus 25%, p < 0.01). Factors associated with higher odds of MHPs at p < 0.10 included caregiver characteristics (psychiatric disorder, limit-setting problems, health-related functional limitations) and child characteristics (younger age and lower IQ). These findings suggest that PHEU children are at high risk for MHPs, yet current models of care for these youth may not support early diagnosis and treatment. Family-based prevention and intervention programs for HIV affected youth and their caregivers may minimize long-term consequences of MHPs.     

An overview of the global HIV/AIDS epidemic, with a focus on the United States

The HIV/AIDS epidemic is a global human tragedy, especially in sub-Saharan Africa. The pandemic affects people in the primer of their lives moving from at-risk populations to broader cross-sections of society. There have been more than 47 million adults and children infected since the beginning of the epidemic, and more than 18.8 million people have died. Over 95% of the global total of all AIDS cases are in the developing world, with prevalence among adults at less than 1% in India and Europe, to more than 10% in several African countries. The overwhelming majority of all infections globally are acquired through unprotected sexual intercourse, with at least 70% resulting from heterosexual intercourse. There have been more than 733,374 AIDS cases reported to the Centers for Disease Control and Prevention (CDC) in the US since the beginning of the epidemic, and more than 430,000 deaths. The largest number and proportion of AIDS cases reported have occurred among gay and bisexual men. This trend continues today, although racial and ethnic minorities, women, and youth are becoming infected in increasing proportions. The south has the most people living with AIDS, followed by the north-east. The global situation is improving in some areas, but even if all HIV transmission could be completely stopped tomorrow, the long-term health, social and economic consequences will be devastating well into the 21st century. The magnitude of the epidemic and the continuing explosive risk of infection, coupled with the economic and infrastructural realities of the regions of the world, make prevention the only realistic approach.     

The Plight of Older Persons as Caregivers to People Infected/Affected by HIV/AIDS: Evidence from Uganda

This paper describes the challenges faced by elderly persons (50 years and above) in Uganda, as parents and/or relatives of persons infected by HIV and as caregivers of the infected relatives and their uninfected children. Little is known regarding these indirect impacts of HIV/AIDS on the elderly in sub-Saharan Africa. Yet, the elderly are most often the main caregivers of HIV-infected persons and their families. Data used in this study were obtained from focus group discussions and in-depth interviews conducted among elderly respondents in 10 rural and urban communities within two Ugandan districts, Luwero and Kamuli. Findings indicate that the elderly do provide care to patients with AIDS at the terminal stage of the illness-when patients most need constant care. In most cases, the challenge of caring for the sick patients is compounded by the responsibility to care for the children affected by HIV/AIDS, which also starts when their parents are still living, not when the children become orphans. This demanding work was reported to negatively affect the elderly in various dimensions (economic, emotional, physical, and nutritional), all of which impacts their health and well-being. The responsibility for day-to-day patient care is borne primarily by elderly females, who reported a higher rate of physical ailments than male respondents-perhaps an indication of their disproportionate contribution to the care responsibilities. Most of the elderly respondents interviewed have a lot of anxiety about their future health and well-being, which they attributed in most part to the HIV/AIDS epidemic. These challenges do appear to exacerbate the aging process of the elderly whose health and well-being are already affected by the poor resource base and weak health infrastructure in this setting.     

Perception of HIV/AIDS risk among urban, low-income senior-housing residents.

Despite the rising number of cases of HIV in adults over age 50, older persons rarely are considered to be at risk for HIV/AIDS, and even though they may be involved in risky behavior, such as unprotected penetrative sex, they may not consider themselves vulnerable to becoming infected. Informed awareness of risk is essential to making positive decisions about adopting preventive measures. We examined demographic, sociobehavioral, and contextual factors that predict urban, low-income older adults' perception of HIV/AIDS risk. Logistic regression results from 398 residents aged 50-93 living in six buildings in two American cities found that males, younger participants (aged 50-61), those living in higher risk buildings, and those who worried more about contracting HIV/AIDS were more likely to perceive themselves to be at HIV/AIDS risk. Findings accounted for 32% of the variance and the prediction success rate was 72%. Results point to the importance of considering sociodemographic characteristics and environmental (contextual) factors as they influence heuristic decision making in understanding HIV/AIDS risk perception among low-income urban older adults and when designing HIV/AIDS education and intervention strategies targeting this population.     

Maternally transmitted HIV infection in children

We evaluated 16 children at high risk for AIDS because of mothers infected with HIV. Two children were persistently seropositive and had laboratory and clinical evidence of HIV infection but had no detectable infectious HIV in their peripheral blood mononuclear cells (PBMC). Seven children, all of whom had clinical and laboratory evidence of HIV infection, were seropositive and virus culture-positive. One child who died at 10 months of age of candida septicemia was HIV antibody-negative but HIV was grown from cultures of his PBMC. Six children had no serologic or virologic evidence of HIV infection; of these, four who were asymptomatic with normal laboratory studies were HIV antibody-positive up to 12 months of age but became antibody-negative by 15 months of age. These observations indicate that: (1) as many as 60% of infants of infected mothers may be infected with HIV; (2) maternal antibody can result in a false-positive or false-negative diagnosis of HIV infection in infants exposed in utero or perinatally, and (3) the use of viral cultures for HIV is valuable for the early diagnosis of maternally transmitted HIV infection.     

Tuberculosis in HIV infection.

Persons with AIDS (PWAs) are 100 times more likely to develop tuberculosis (TB) than the general population. The TB incidence rates in PWAs in the US range from 4-21%, especially among intravenous drug users and Haitians. In Florida, 60% of Haitian AIDS patients also had TB compared to 2.7% of non-Haitian AIDS patients. At a hospital in London, England, 25% of PWAs also had TB and 42% of all AIDS patients at this hospital were members of racial groups with a high prevalence of TB. In developed countries, reactivation of a latent TB infection is generally what occurs in AIDS patients. The absolute number of AIDS patients with TB in these countries is low and unlikely that it will spread to non-HIV seropositive patients. On the other hand, 30-60% of adults have been infected with Mycobacterium tuberculosis in central Africa and HIV seroprevalence is also high. So many AIDS patients here can develop TB through reactivation or exogenous primary infection. This situation significantly increases the risk of TB for HIV seronegative persons. In fact, TB is 1 of the most frequent opportunistic infections in PWAs in developing countries, such as central Africa. In patients at an early stage of HIV infection, TB manifests itself classically. The clinical presentation in patients in the late stages includes fever, weight loss, malaise, productive cough accompanied with labored breathing, an atypical chest radiograph, and extrapulmonary TB. This atypical pattern often results in delays of diagnosis and treatment. Many sputum samples do not test positive for M. tuberculosis therefore if a physician suspects TB, treatment should begin immediately. Some studies demonstrate that isoniazid prophylaxis substantially decreases the incidence of TB in HIV seropositive patients in Zambia. There is no conclusive evidence of the harm or effectiveness of the BCG vaccine in HIV children and adults.     

New AIDS estimates show demographic changes

According to the Centers for Disease Control and Prevention (CDC), the HIV epidemic's rate of increase has slowed to about three percent per year, with the incidence of AIDS cases estimated to have decreased in the West. The latest epidemic figures, reported through 1994 in the CDC's HIV/AIDS Surveillance Report, puts the total of reported AIDS cases in the United States at 441,528. The implementation of the new AIDS definition in 1993 has distorted surveillance trends--six out of ten AIDS cases are now reported using the new CD4 criterion instead of the pre-1993 case definitions. An unpublished analysis of the epidemic shows a shift toward fewer gay men, more injection drug users, and more women becoming infected. However, the CDC contends that more heterosexuals are being infected and more racial and ethnic minorities are being infected.