Displaying publications 1 - 20 of 189 in total

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  1. Apenteng OO, Ismail NA
    PLoS One, 2015;10(7):e0131950.
    PMID: 26147199 DOI: 10.1371/journal.pone.0131950
    The spread of human immunodeficiency virus (HIV) infection and the resulting acquired immune deficiency syndrome (AIDS) is a major health concern in many parts of the world, and mathematical models are commonly applied to understand the spread of the HIV epidemic. To understand the spread of HIV and AIDS cases and their parameters in a given population, it is necessary to develop a theoretical framework that takes into account realistic factors. The current study used this framework to assess the interaction between individuals who developed AIDS after HIV infection and individuals who did not develop AIDS after HIV infection (pre-AIDS). We first investigated how probabilistic parameters affect the model in terms of the HIV and AIDS population over a period of time. We observed that there is a critical threshold parameter, R0, which determines the behavior of the model. If R0 ≤ 1, there is a unique disease-free equilibrium; if R0 < 1, the disease dies out; and if R0 > 1, the disease-free equilibrium is unstable. We also show how a Markov chain Monte Carlo (MCMC) approach could be used as a supplement to forecast the numbers of reported HIV and AIDS cases. An approach using a Monte Carlo analysis is illustrated to understand the impact of model-based predictions in light of uncertain parameters on the spread of HIV. Finally, to examine this framework and demonstrate how it works, a case study was performed of reported HIV and AIDS cases from an annual data set in Malaysia, and then we compared how these approaches complement each other. We conclude that HIV disease in Malaysia shows epidemic behavior, especially in the context of understanding and predicting emerging cases of HIV and AIDS.
    Matched MeSH terms: HIV Infections/epidemiology*
  2. Shrestha R, Copenhaver M, Bazazi AR, Huedo-Medina TB, Krishnan A, Altice FL
    AIDS Behav, 2017 Apr;21(4):1059-1069.
    PMID: 28108877 DOI: 10.1007/s10461-017-1693-x
    Although it is well established that HIV-related stigma, depression, and lack of social support are negatively associated with health-related quality of life (HRQoL) among people living with HIV (PLH), no studies to date have examined how these psychosocial factors interact with each other and affect HRQoL among incarcerated PLH. We, therefore, incorporated a moderated mediation model (MMM) to explore whether depression mediates the effect of HIV-related stigma on HRQoL as a function of the underlying level of social support. Incarcerated HIV-infected men with opioid dependence (N = 301) were recruited from the HIV units in Kajang prison in Malaysia. Participants completed surveys assessing demographic characteristics, HIV-related stigma, depression, social support, and HRQoL. Results showed that the effect of HIV-related stigma on HRQoL was mediated via depression (a1:β = 0.1463, p HIV-related stigma and depression was negatively associated with HRQOL (β = -0.0317, p = 0.0133). This indicated that the predicted influence of HIV-related stigma on HRQoL via depression had negative effect on HRQoL for individuals with low social support. The results suggest that social support can buffer the negative impact of depression on HRQoL and highlights the need for future interventions to target these psychosocial factors in order to improve HRQoL among incarcerated PLH.
    Matched MeSH terms: HIV Infections/epidemiology
  3. Burch WJ, Hart GJ, Lim SH
    AIDS Educ Prev, 2018 04;30(2):85-95.
    PMID: 29688771 DOI: 10.1521/aeap.2018.30.2.85
    Young men who have sex with men (YMSM) are a group at high risk for HIV infection, yet no research has been conducted to understand this population in Malaysia. Semistructured interviews from a combination of YMSM aged 18-25 (n = 20) and local service providers of sexual health services (n = 4) were conducted from May to June 2015. Thematic analysis was used to identify common themes in participant responses from transcripts. Participants reported societal and internalized homophobia, an absence of sex education and difficulty accessing confidential HIV testing. This study provides insights into how homophobia in Malaysian society influences individual risk behavior for HIV in Malaysian YMSM, and makes practical suggestions for more effective HIV prevention in this population.
    Matched MeSH terms: HIV Infections/epidemiology
  4. Mapanga KG, Mapanga MB
    Clin Nurse Spec, 2008 Sep-Oct;22(5):226-30.
    PMID: 18753880 DOI: 10.1097/01.NUR.0000325367.54044.d5
    In Africa, there is an overwhelming and increasing prevalence of illnesses such as HIV and AIDS, tuberculosis, and malaria. This constitutes a "burden of disease" facing Africa. Nursing must evolve accordingly to the changing needs of clients, many of whom have chronic illnesses. In achieving desirable outcomes, it is essential to adopt and adapt the clinical nurse specialist (CNS) role so that expert and specialist practice is available to clients in a cost-effective manner. The role of the CNS singles out clinical responsibilities in a hospital setting so that nurse administrators can concentrate on the provision of resources. A CNS position in the hospital structure would offer a clinical career pathway for advanced practice nurses who wish to remain "by-the-bedside." Regional initiatives are already beginning to show a need for master's-prepared, advanced practice nurses in the clinical areas so as to reduce maternal mortality.
    Matched MeSH terms: HIV Infections/epidemiology
  5. Chow WZ, Takebe Y, Syafina NE, Prakasa MS, Chan KG, Al-Darraji HA, et al.
    PLoS One, 2014;9(1):e85250.
    PMID: 24465513 DOI: 10.1371/journal.pone.0085250
    The HIV epidemic is primarily characterised by the circulation of HIV-1 group M (main) comprising of 11 subtypes and sub-subtypes (A1, A2, B-D, F1, F2, G, H, J, and K) and to date 55 circulating recombinant forms (CRFs). In Southeast Asia, active inter-subtype recombination involving three main circulating genotypes--subtype B (including subtype B', the Thai variant of subtype B), CRF01_AE, and CRF33_01B--have contributed to the emergence of novel unique recombinant forms. In the present study, we conducted the molecular epidemiological surveillance of HIV-1 gag-RT genes among 258 people who inject drugs (PWIDs) in Kuala Lumpur, Malaysia, between 2009 and 2011 whereby a novel CRF candidate was recently identified. The near full-length genome sequences obtained from six epidemiologically unlinked individuals showed identical mosaic structures consisting of subtype B' and CRF01_AE, with six unique recombination breakpoints in the gag-RT, pol, and env regions. Among the high-risk population of PWIDs in Malaysia, which was predominantly infected by CRF33_01B (>70%), CRF58_01B circulated at a low but significant prevalence (2.3%, 6/258). Interestingly, the CRF58_01B shared two unique recombination breakpoints with other established CRFs in the region: CRF33_01B, CRF48_01B, and CRF53_01B in the gag gene, and CRF15_01B (from Thailand) in the env gene. Extended Bayesian Markov chain Monte Carlo sampling analysis showed that CRF58_01B and other recently discovered CRFs were most likely to have originated in Malaysia, and that the recent spread of recombinant lineages in the country had little influence from neighbouring countries. The isolation, genetic characterization, and evolutionary features of CRF58_01B among PWIDs in Malaysia signify the increasingly complex HIV-1 diversity in Southeast Asia that may hold an implication on disease treatment, control, and prevention.
    Matched MeSH terms: HIV Infections/epidemiology
  6. Meng Li C, Jie Ying F, Raj D, Pui Li W, Kukreja A, Omar SF, et al.
    J Int AIDS Soc, 2020 11;23(11):e25638.
    PMID: 33206473 DOI: 10.1002/jia2.25638
    INTRODUCTION: The rapidly growing epidemic of non-communicable diseases (NCDs) including mental health among aging people living with HIV (PLWH) has put a significant strain on the provision of health services in many HIV clinics globally. We constructed care cascades for specific NCDs and mental health among PLWH attending our centre to identify potential areas for programmatic improvement.

    METHODS: This was a follow-up study of participants recruited in the Malaysian HIV & Aging study (MHIVA) from 2014 to 2016 at the University Malaya Medical Centre (n = 336). PLWH on suppressive antiretroviral therapy (ART) for a minimum of 12 months were invited to participate. At study entry, all participants underwent screening for diabetes (DM), hypertension (HTN) and dyslipidaemia; and completed assessments using the depression, anxiety and stress scale (DASS-21). Screening results were recorded in medical charts and clinical management provided as per standard of care. A subsequent review of medical records was performed at 24 months following study completion among participants who remained on active follow-up. Treatment pathways for NCD treatment and psychiatric referrals were assessed based on local practice guidelines to construct the care cascade.

    RESULTS: A total of 329 participants (median age = 43 years, 83% male, 100% on ART) completed follow-up at 24 months. The prevalence of diabetes was 13%, dyslipidaemia 88% and hypertension 44%, whereas 23% presented with severe/extremely severe symptoms of depression, anxiety and/or stress. More than 50% of participants with dyslipidaemia and hypertension were not diagnosed until study screening, whereas over 80% with prevalent psychiatric symptoms were not previously recognized clinically. Suboptimal control of fasting lipids, sugar and blood pressure were found in the majority of participants despite optimal HIV treatment outcomes maintained over this same period. Only 32% of participants with severe/extremely severe mental health symptoms received psychiatric referrals and 83% of these attended their psychiatry clinic appointments.

    CONCLUSIONS: Systematic screening must be introduced to identify NCDs and mental health issues among PLWH followed by proper linkage and referrals for management of screen-positive cases. Assessment of factors associated with attrition at each step of the care cascade is critically needed to improve health outcomes in our aging patients.

    Matched MeSH terms: HIV Infections/epidemiology*
  7. Jing W
    J Dermatol, 2000 Apr;27(4):225-32.
    PMID: 10824485
    A retrospective analysis of 182 HIV positive Malaysians was done in two centers, the University Hospital Kuala Lumpur (UHKL) and the General Hospital Kuala Lumpur (GHKL) from March 1997 to February 1998. Demographic and clinical data were analyzed. The analysis showed that 130 out of 182 patients had mucocutaneous disorders (71.4%). In the study there were 125 males (96.2%) and 5 females (3.8%). The majority of the patients were in the age group from 20 to 50 years. The patients who presented with mucocutaneous disease also had low CD4+ T lymphocyte counts, and most of them had AIDS defining illnesses. The number of cases with generalized hyperpigmentation was very high (35.7%), followed by papular eruptions (29.1%) and xerosis (27.5%). Seborrheic dermatitis was seen in 19.2% of the cases and psoriasis in 7.7%. The most common infections were oral candida 35.7%, tinea corporis and onychomycosis 9.9%, and herpes infection 4.3%. However, mucocutaneous manifestations of Kaposi's sarcoma were rare. The results suggested that mucocutaneous findings are useful clinical predictors of HIV infection or a sign of the presence of advanced HIV infection.
    Matched MeSH terms: HIV Infections/epidemiology
  8. Singh J, Che'Rus S, Chong S, Chong YK, Crofts N
    AIDS, 1994;8 Suppl 2:S99-103.
    PMID: 7857575
    Matched MeSH terms: HIV Infections/epidemiology*
  9. AIDS, 1999 Jul 30;13(11):UNAIDS 1-UNAIDS 13.
    PMID: 10449273
    A meeting was organized by the Joint United Nations Programme on HIV/AIDS (UNAIDS), the World Health Organisation (WHO) and the Japanese National Institute of Infectious Diseases (NIID) with the following objectives: (i) to discuss public health and economic rationale to accelerate the development and evaluation of HIV vaccines suitable for use in Asia; (ii) to review ongoing preclinical HIV vaccine research in Asia; (iii) to review the Asian experience in conducting clinical trials of HIV candidate vaccines; (iv) to explore possibilities for international collaboration between countries in the region and with other countries and institutions; and (v) to discuss issues related to availability of future effective HIV vaccines. The meeting was attended by participants from Australia, China, France, Germany, India, Japan, Malaysia, Myanmar, South Korea, Thailand, United Kingdom, and the United States of America. The HIV epidemic in Asia is rapidly spreading and has already resulted in a total of 7 million HIV infections in the region. The epidemic already has a significant public health and economic impact, which may be worse in the future, unless effective intervention programmes are successfully implemented. A safe, effective, and affordable vaccine should be considered as the best hope for a long-term solution to the HIV epidemic in Asia. Asian scientists and institutions have established a number of international collaborations to isolate and characterize prevalent HIV-1 strains (mostly belonging to subtypes C and E) and are developing candidate vaccines based on these subtypes. In the region, phase I/II clinical trials of preventative HIV candidate vaccines have been conducted in Australia, China and Thailand. Since 1993, a comprehensive National AIDS Vaccine Plan has allowed Thailand to conduct phase I/II trials of six different preventative or therapeutic candidate vaccines, and the first phase III preventative efficacy trial has been approved. The meeting identified both the needs and the opportunities to intensify international collaboration to accelerate the development of HIV vaccines in Asia.
    Matched MeSH terms: HIV Infections/epidemiology
  10. Lemoh C, Ryan CE, Sekawi Z, Hearps AC, Aleksic E, Chibo D, et al.
    PLoS One, 2013;8(12):e84008.
    PMID: 24391866 DOI: 10.1371/journal.pone.0084008
    African-born Australians are a recognised "priority population" in Australia's Sixth National HIV/AIDS Strategy. We compared exposure location and route for African-born people living with HIV (PLHIV) in Victoria, Australia, with HIV-1 pol subtype from drug resistance assays and geographical origin suggested by phylogenetic analysis of env gene. Twenty adult HIV positive African-born Victorian residents were recruited via treating doctors. HIV exposure details were obtained from interviews and case notes. Viral RNA was extracted from participant stored plasma or whole blood. The env V3 region was sequenced and compared to globally representative reference HIV-1 sequences in the Los Alamos National Library HIV Database. Twelve participants reported exposure via heterosexual sex and two via iatrogenic blood exposures; four were men having sex with men (MSM); two were exposed via unknown routes. Eight participants reported exposure in their countries of birth, seven in Australia, three in other countries and two in unknown locations. Genotype results (pol) were available for ten participants. HIV env amplification was successful in eighteen cases. HIV-1 subtype was identified in all participants: eight both pol and env; ten env alone and two pol alone. Twelve were subtype C, four subtype B, three subtype A and one subtype CRF02_AG. Reported exposure location was consistent with the phylogenetic clustering of env sequences. African Australians are members of multiple transnational social and sexual networks influencing their exposure to HIV. Phylogenetic analysis may complement traditional surveillance to discern patterns of HIV exposure, providing focus for HIV prevention programs in mobile populations.
    Matched MeSH terms: HIV Infections/epidemiology*
  11. Ghajarieh AB, Kow KY
    Health Care Women Int, 2011 Apr;32(4):314-27.
    PMID: 21409664 DOI: 10.1080/07399332.2010.532577
    To date, researchers investigating gender in relation to social issues underscore women and appear to sideline men. Focusing on women in studies concerning sociogender issues may exclude not only men from mainstream research, but also those who do not fit into the binary gender system, including gay, lesbian, bisexual, and transgender (GLBT) people. One area closely related to gender issues is the HIV epidemic. Mainstream discussions of men and other versions of masculinity and femininity including GLBT people in the gender-related studies of the HIV epidemic can decrease the vulnerability of individuals against HIV infections regardless of their biological sex.
    Matched MeSH terms: HIV Infections/epidemiology*
  12. Shetty P
    Lancet, 2013 Jun 15;381(9883):2073.
    PMID: 23769222 DOI: 10.1016/S0140-6736(13)61231-3
    Matched MeSH terms: HIV Infections/epidemiology
  13. Culbert GJ, Waluyo A, Wang M, Putri TA, Bazazi AR, Altice FL
    AIDS Behav, 2019 Aug;23(8):2048-2058.
    PMID: 30465106 DOI: 10.1007/s10461-018-2344-6
    With adequate support, people with HIV (PWH) may achieve high levels of adherence to antiretroviral therapy (ART) during incarceration. We examined factors associated with ART utilization and adherence among incarcerated PWH (N = 150) in Indonesia. ART utilization was positively associated with HIV status disclosure (adjusted odds ratio [aOR] = 5.5, 95% CI 1.2-24.1, p = 0.023), drug dependency (aOR = 3.9, 95% CI 1.2-12.6, p = 0.022), health service satisfaction (aOR = 3.2, 95% CI 1.7-6.2, p 
    Matched MeSH terms: HIV Infections/epidemiology
  14. Islam R, Ahmad R, Ghailan K, Hoque KE
    J Relig Health, 2020 Jun;59(3):1327-1343.
    PMID: 31134517 DOI: 10.1007/s10943-019-00832-8
    People with HIV/AIDS (PLWHA) commonly pose problems to their family as well as to society because of their vulnerable health and economic conditions. Contrarily, PLWHA encounter social discrimination and adverse realities while finding it difficult to continue in their jobs. These complex phenomena interact to push them into a low economic status. A microfinance program can hopefully assist poor patients to cope with the negative economic consequences of this disease. But the conventional market-oriented microfinance institutions show reluctance to serve this group of people due to the possibilities of having credit risk. In this paper, we propose an alternative microfinancing technique that can provide a better economic life of the PLWHA while absorbing the credit risks. A comprehensive model is designed using specific Islamic financial instruments in conjugation with household economic portfolio theory. Critical realism method was adopted to construct this model. We concluded that the application of Islamic microfinance can enhance income of HIV patients while reducing the productivity-loss. This model can be useful to the microfinance practitioners and policymakers for addressing a different market segment, diversifying products, and formulating policy.
    Matched MeSH terms: HIV Infections/epidemiology
  15. Ong HC, Quah SH, Low HC
    Med J Malaysia, 1998 Dec;53(4):385-91.
    PMID: 10971982
    The method of backcalculation estimates past HIV infection rates from available AIDS incidence data and an estimate of the incubation period. The method is used on the Malaysian data to model the AIDS epidemic because it makes use of the Malaysian AIDS incidence data which is fairly reliable and is more reflective of the trend of the epidemic as compared to the HIV infection rate recorded. An application is made on the monthly AIDS incidence data in Malaysia from January 1995 until August 1996 released by the Ministry of Health, Malaysia using the backcalculation program from Bacchetti et al and the incubation period distribution from Brookmeyer to generate the current HIV infection rate for Malaysia (until August 1996).
    Matched MeSH terms: HIV Infections/epidemiology*
  16. Rozanova J, Zeziulin O, Rich KM, Altice FL, Kiriazova T, Zaviryukha I, et al.
    PLoS One, 2021;16(9):e0256627.
    PMID: 34591848 DOI: 10.1371/journal.pone.0256627
    INTRODUCTION: The Eastern Europe and Central Asian (EECA) region has the highest increase in HIV incidence and mortality globally, with suboptimal HIV treatment and prevention. All EECA countries (except Russia) are low and middle-income (LMIC). While LMIC are home to 80% of all older people living with HIV (OPWH), defined as ≥50 years, extant literature observed that newly diagnosed OPWH represent the lowest proportion in EECA relative to all other global regions. We examined HIV diagnoses in OPWH in Ukraine, a country emblematic of the EECA region.

    METHODS: We analysed incident HIV diagnoses from 2015-2018 and mortality trends from 2016-2018 for three age groups: 1) 15-24 years; 2) 25-49 years; and 3) ≥50 years. AIDS was defined as CD4<200cells/mL. Mortality was defined as deaths per 1000 patients newly diagnosed with HIV within the same calendar year. Mortality rates were calculated for 2016, 2017, and 2018, compared to age-matched general population rates, and all-cause standardized mortality ratios (SMRs) were calculated.

    RESULTS: From 2015-2018, the proportion of OPWH annually diagnosed with HIV increased from 11.2% to 14.9% (p<0.01). At the time of diagnosis, OPWH were also significantly (p<0.01) more likely to have AIDS (43.8%) than those aged 25-49 years (29.5%) and 15-24 years (13.3%). Newly diagnosed OPWH had the same-year mortality ranging from 3 to 8 times higher than age-matched groups in the Ukrainian general population.

    CONCLUSIONS: These findings suggest a reassessment of HIV testing, prevention and treatment strategies in Ukraine is needed to bring OPWH into focus. OPWH are more likely to present with late-stage HIV and have higher mortality rates. Re-designing testing practices is especially crucial since OPWH are absent from targeted testing programs and are increasingly diagnosed as they present with AIDS-defining symptoms. New strategies for linkage and treatment programs should reflect the distinct needs of this target population.

    Matched MeSH terms: HIV Infections/epidemiology*
  17. Ariffin TA, Mohamad S, Yusuf WN, Shueb RH
    J Infect Dev Ctries, 2014 Aug;8(8):1063-7.
    PMID: 25116676 DOI: 10.3855/jidc.4095
    INTRODUCTION: The widespread use of highly active antiretroviral therapy (HAART) and continuous reports of HIV-1 strains developing resistance to these drugs is rather alarming, as transmission of resistant viruses to newly infected persons is possible. This study aimed to determine HIV-1 subtypes and the prevalence of primary mutations associated with antiretroviral (ARV) resistance among treatment-naive prisoners on the east coast of Malaysia.
    METHODOLOGY: Viral RNA was extracted from plasma samples of 21 treatment-naive prisoners. Protease (PR) and reverse transcriptase (RT) regions were amplified and sequenced. Stanford HIV database algorithms were used for interpretation of resistance, and phylogenetic analysis was performed for subtype assignment.
    RESULTS: In the PR gene, no antiviral resistance-associated mutation was detected. For RT-associated mutations, K103N was the most prevalent in sequenced samples (14.3%). Genetic subtyping on the pol gene revealed that the majority of the prisoners were infected with subtype CRF33_01B (52.4%).
    CONCLUSION: Continuous surveillance of newly infected individuals is required to help strategize the best antiviral treatment for these patients.
    Matched MeSH terms: HIV Infections/epidemiology*
  18. Ullah I, Hassan W, Tahir MJ, Ahmed A
    J Med Virol, 2021 Oct;93(10):5689-5690.
    PMID: 34143897 DOI: 10.1002/jmv.27134
    Matched MeSH terms: HIV Infections/epidemiology
  19. Brown T
    AIDS Care, 1997 Feb;9(1):43-9.
    PMID: 9155914
    Matched MeSH terms: HIV Infections/epidemiology*
  20. Ng RX, Guadamuz TE, Akbar M, Kamarulzaman A, Lim SH
    Int J STD AIDS, 2020 05;31(6):568-578.
    PMID: 32299293 DOI: 10.1177/0956462420913444
    Matched MeSH terms: HIV Infections/epidemiology*
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