Some individuals remain uninfected with human immunodeficiency virus type-1 (HIV-1) despite multiple high-risk sexual exposures. We studied a cohort of 25 subjects with histories of multiple high-risk sexual exposures to HIV-1 and found that their CD8+ lymphocytes had greater anti-HIV-1 activity than did CD8+ lymphocytes from nonexposed controls. Further studies indicated that their purified CD4+ lymphocytes were less susceptible to infection with multiple primary isolates of HIV-1 than were CD4+ lymphocytes from the nonexposed controls. This relative resistance to HIV-1 infection did not extend to T-cell line-adapted strains, was restricted by the envelope glycoprotein, was not explained by the cell surface density of CD4 molecules, but was associated with the activity of the C-C chemokines RANTES, MIP-1alpha, and MIP-1beta. This relative resistance of CD4+ lymphocytes may contribute to protection from HIV-1 in multiply exposed persons.

Survival among perinatally infected children and youth with HIV has been greatly extended since the advent of highly active antiretroviral therapies. Yet, adherence to HIV medication regimens is suboptimal and decreases as children reach adolescence. This paper reports on a qualitative study examining psychosocial factors associated with adherence among perinatally infected youth ages 10-16 years. The study was based on in-depth interviews with a sample of 30 caregivers participating in a comprehensive health care program in New York City serving families with HIV. A subsample comprising 14 caregivers of children ages 10 and above is the focus of this paper. The analysis identified a number of themes associated with the psychosocial context of managing adherence among older children. Maintaining adherence was an ongoing challenge and strategies evolved as children matured. Regimen fatigue and resistance to taking the medications were major challenges to maintaining adherence among the oldest children. In other cases, caregivers developed a kind of partnership with their child for administering the medications. Disclosure to the child of his or her HIV status was used as a strategy to promote adherence but seemed to be effective only under certain circumstances. Social support appeared to have an indirect influence on adherence, primarily by providing caregivers with temporary help when needed. Health care professionals were an important source of disclosure and adherence support for parents. The study illustrates the interplay of maturational issues with other contextual psychosocial factors as influences on adherence among older children and adolescents.

Although interest in quitting was high, bootleggers created an environment in which reduced-price cigarettes were easier to access than cessation services. This activity continues to undermine the public health goals of the tax increase.

BackgroundServices to treat tobacco dependence are not readily available to smokers in low-middle income countries (LMICs) where smoking prevalence remains high. We are conducting a cluster randomized controlled trial comparing the effectiveness of two strategies for implementing tobacco use treatment guidelines in 26 community health centers (CHCs) in Viet Nam. Guided by the Consolidated Framework for Implementation Research (CFIR), prior to implementing the trial, we conducted formative research to (1) identify factors that may influence guideline implementation and (2) inform further modifications to the intervention that may be necessary to translate a model of care delivery from a high-income country (HIC) to the local context of a LMIC.MethodsWe conducted semi-structured qualitative interviews with CHC medical directors, health care providers, and village health workers (VHWs) in eight CHCs (n = 40). Interviews were transcribed verbatim and translated into English. Two qualitative researchers used both deductive (CFIR theory driven) and inductive (open coding) approaches to analysis developed codes and themes relevant to the aims of this study.ResultsThe interviews explored four out of five CFIR domains (i.e., intervention characteristics, outer setting, inner setting, and individual characteristics) that were relevant to the analysis. Potential facilitators of the intervention included the relative advantage of the intervention compared with current practice (intervention characteristics), awareness of the burden of tobacco use in the population (outer setting), tension for change due to a lack of training and need for skill building and leadership engagement (inner setting), and a strong sense of collective efficacy to provide tobacco cessation services (individual characteristics). Potential barriers included the perception that the intervention was more complex (intervention characteristic) and not necessarily compatible (inner setting) with current workflows and staffing historically designed to address infectious disease prevention and control rather than chronic disease prevention and competing priorities that are determined by the MOH (outer setting).ConclusionsIn this study, CFIR provided a valuable framework for evaluating factors that may influence implementation of a systems-level intervention for tobacco control in a LMIC and understand what adaptations may be needed to translate a model of care delivery from a HIC to a LMIC.Trial registration NCT02564653. Registered September 2015

Nurses play a critical role in responding to disasters. Learning from their disaster experience can inform approaches to nursing education and preparation.