Diagnosing Shosha: literature as a lens to view disease and history

In recent decades, physicians have diagnosed fictional and non-fictional characters through portraits, biographies and writing. We argue that such an exercise can be beneficial for a uniquely health humanities reason-better understanding of our current world and the social determinants of health. Drawing on the method of health and social justice studies, we explore the character of Shosha, who appears repeatedly in the writings of Nobel Prize winner Isaac Bashevis Singer. Singer's strong story-telling skill and commitment to writing about the Jewish communities of prewar Poland in vivid detail preserve a slice of history, ensure that future generations will better understand what was destroyed by Nazi extermination policies, and provide lessons for modern political, hunger and war threats to human health. Shosha suffers from a lifelong debilitating disease that neither Singer nor subsequent commentaries ever name. The authors focus first on diagnosing the disease by consulting medical literature and experts. They then examine the value and pitfalls of this exercise and suggest that the lessons of understanding the disease historically, for teaching physicians how to recognise diseases rooted in war and poverty, and for enlightening all of us to the risks faced in human health by a world increasingly taking up arms and sliding towards fascism make diagnosing Shosha necessary and meaningful.

Effects of Different Transitional Care Strategies on Outcomes after Hospital Discharge-Trust Matters, Too

BACKGROUND

As health systems shift toward value-based care, strategies to reduce readmissions and improve patient outcomes become increasingly important. Despite extensive research, the combinations of transitional care (TC) strategies associated with best patient-centered outcomes remain uncertain.

METHODS

Using an observational, prospective cohort study design, Project ACHIEVE sought to determine the association of different combinations of TC strategies with patient-reported and postdischarge health care utilization outcomes. Using purposive sampling, the research team recruited a diverse sample of short-term acute care and critical access hospitals in the United States (N = 42) and analyzed data on eligible Medicare beneficiaries (N = 7,939) discharged from their medical/surgical units. Using both hospital- and patient-reported TC strategy exposure data, the project compared patients "exposed" to each of five overlapping groups of TC strategies to their "control" counterparts. Primary outcomes included 30-day hospital readmissions, 7-day postdischarge emergency department (ED) visits and patient-reported physical and mental health, pain, and participation in daily activities.

RESULTS

Participants averaged 72.3 years old (standard deviation =10.1), 53.4% were female, and most were White (78.9%). Patients exposed to one TC group (Hospital-Based Trust, Plain Language, and Coordination) were less likely to have 30-day readmissions (risk ratio [RR], 0.72; 95% confidence interval [CI] = 0.57-0.92, p < 0.001) or 7-day ED visits (RR, 0.72; 95% CI, 0.55-0.93, p < 0.001) and more likely to report excellent physical and mental health, greater participation in daily activities, and less pain (RR ranged from 1.11 to 1.15, p < 0.01).

CONCLUSION

In concert with care coordination activities that bridge the transition from hospital to home, hospitals' clear communication and fostering of trust with patients were associated with better patient-reported outcomes and reduced health care utilization.

Development and psychometric properties of surveys to assess patient and family caregiver experience with care transitions

BACKGROUND

The purpose of this study was to develop and administer surveys that assess patient and family caregiver experiences with care transitions and examine the psychometric properties of the surveys. The surveys were designed to ask about 1) the transitional care services that matter most to patients and their caregivers and 2) care outcomes, including the overall quality of transitional care they received, patient self-reported health, and caregiver effort/stress.

METHODS

Survey items were developed based on a review of the literature, existing surveys, focus groups, site visits, stakeholder and expert input, and patient and caregiver cognitive interviews. We administered mail surveys with telephone follow up to patients recently discharged from 43 U.S. hospitals. Patients identified the caregivers who helped them during their hospital stay (Time 1 caregiver) and when they were home (Time 2 caregiver). Time 1 and Time 2 caregivers were surveyed by telephone only. The psychometric properties of the survey items and outcome composite measures were examined for each of the three surveys. Items that performed poorly across multiple analyses, including those with low variability and/or a high missing data, were dropped except when they were conceptually important.

RESULTS

The analysis datasets included responses from 9282 patients, 1245 Time 1 caregivers and 1749 Time 2 caregivers. The construct validity of the three proposed outcome composite measures-Overall Quality of Transitional Care (patient and caregiver surveys), Patient Overall Health (patient survey) and Caregiver Effort/Stress (caregiver surveys) -was supported by acceptable exploratory factor analysis results and acceptable internal consistency reliability. Site-level reliability was acceptable for the two patient outcome composite measures, but was low for Caregiver Effort/Stress (< 0.70). In all surveys, the Overall Quality of Transitional Care outcome composite measure was significantly correlated with other outcome composite measures and most of the single-item measures.

CONCLUSIONS

Overall, the final patient and caregiver surveys are psychometrically sound and can be used by health systems, hospitals, and researchers to assess the quality of care transitions and related outcomes. Results from these surveys can be used to improve care transitions, focusing on what matters most to patients and their family caregivers.

Use, re-use or discard? Quantitatively defined variance in the functional integrity of N95 respirators following vaporized hydrogen peroxide decontamination during the COVID-19 pandemic

BACKGROUND

Coronavirus disease 2019 has stretched the ability of many institutions to supply needed personal protective equipment, especially N95 respirators. N95 decontamination and re-use programmes provide one potential solution to this problem. Unfortunately, a comprehensive evaluation of the effects of decontamination on the fit of various N95 models using a quantitative fit test (QNFT) approach is lacking.

AIMS

To investigate the effects of up to eight rounds of vaporized hydrogen peroxide (VHP) decontamination on the fit of N95 respirators currently in use in a hospital setting, and to examine if N95 respirators worn by one user can adapt to the face shape of a second user with no compromise to fit following VHP decontamination.

METHODS

The PortaCount Pro+ Respirator Fit Tester Model 8038 was used to quantitatively define functional integrity, measured by fit, of N95 respirators following decontamination with VHP.

FINDINGS

There was an observable downward trend in the functional integrity of Halyard Fluidshield 46727 N95 respirators throughout eight cycles of decontamination with VHP. Functional integrity of 3M 1870 N95 respirators was reduced significantly after the respirator was worn, decontaminated with VHP, and then quantitatively fit tested on a second user. Furthermore, inconsistencies between qualitative fit test and QNFT results were uncovered that may have strong implications on the fit testing method used by institutions.

CONCLUSIONS

The data revealed variability in the functional integrity of different N95 models after VHP decontamination, and exposed potential limitations of N95 decontamination and re-use programmes.

Decontaminating N95 respirators during the COVID-19 pandemic: simple and practical approaches to increase decontamination capacity, speed, safety and ease of use

Background

The COVID-19 pandemic has caused a severe shortage of personal protective equipment (PPE), especially N95 respirators. Efficient, effective and economically feasible methods for large-scale PPE decontamination are urgently needed.

Aims

(1) to develop protocols for effectively decontaminating PPE using vaporized hydrogen peroxide (VHP); (2) to develop novel approaches that decrease set-up and take-down time while also increasing decontamination capacity; (3) to test decontamination efficiency for N95 respirators heavily contaminated by make-up or moisturizers.

Methods

We converted a decommissioned Biosafety Level 3 laboratory into a facility that could be used to decontaminate N95 respirators. N95 respirators were hung on metal racks, stacked in piles, placed in paper bags or covered with make-up or moisturizer. A VHP® VICTORY™ unit from STERIS was used to inject VHP into the facility. Biological and chemical indicators were used to validate the decontamination process. Findings: N95 respirators individually hung on metal racks were successfully decontaminated using VHP. N95 respirators were also successfully decontaminated when placed in closed paper bags or if stacked in piles of up to six. Stacking reduced the time needed to arrange N95 respirators for decontamination by approximately two-thirds while almost tripling facility capacity. Make-up and moisturizer creams did not interfere with the decontamination process.

Conclusions

Respirator stacking can reduce the hands-on time and increase decontamination capacity. When personalization is needed, respirators can be decontaminated in labelled paper bags. Make up or moisturizers do not appear to interfere with VHP decontamination.

Vulnerable Children in a Dual Epidemic

Two epidemics-Covid-19 and opioid use disorder (OUD) -are creating short- and long-term mental and physical health risks for vulnerable children and adolescents. Information about the risks to children from exposure to the coronavirus is still fragmentary, but even many healthy children are not getting appropriate health care, such as vaccinations or monitoring of developmental milestones during the Covid-19 pandemic. Children living in poverty are at heightened risk. Youngsters who are already dealing with OUD in their families-2.2 million as of 2017-face serious consequences stemming from trauma and stress. Although not officially designated by the Centers for Disease Control and Prevention as "adverse childhood experiences" ("ACEs"), these situations meet the CDC's criteria for inclusion, such as death or separation from a parent. It is important to recognize and meet the needs of all these children now and not just when the long-term consequences become apparent.

Patience, Presence, and Persistence: What It Takes to Be an Alzheimer's Caregiver

These stories convey the diversity of AD caregivers but also the similarities of the difficulties they experience over years of adjusting to the increasing challenges of the tasks. The authors vividly express both the toll caregiving takes; many also derive positive feelings from the experience. Among the bioethical issues raised in the stories are the failure of professionals to utilize caregivers' intimate knowledge of the person, the tension between lying to and comforting the person, choices at the end of life, and the still-emerging impact of genetic and biomarker information about the caregiver's own susceptibility to the disease. It is common for caregivers and professionals to characterize the relationship of caregiver and parent as "role reversal." This commentary calls for a new look at that framework, which fails to recognize the many differences between caregiving for a child and for a person with AD.

Care Transitions From Patient and Caregiver Perspectives

PURPOSE

Despite concerted actions to streamline care transitions, the journey from hospital to home remains hazardous for patients and caregivers. Remarkably little is known about the patient and caregiver experience during care transitions, the services they need, or the outcomes they value. The aims of this study were to (1) describe patient and caregiver experiences during care transitions and (2) characterize patient and caregiver desired outcomes of care transitions and the health services associated with them.

METHODS

We interviewed 138 patients and 110 family caregivers recruited from 6 health networks across the United States. We conducted 34 homogenous focus groups (103 patients, 65 caregivers) and 80 key informant interviews (35 patients, 45 caregivers). Audio recordings were transcribed and analyzed using principles of grounded theory to identify themes and the relationship between them.

RESULTS

Patients and caregivers identified 3 desired outcomes of care transition services: (1) to feel cared for and cared about by medical providers, (2) to have unambiguous accountability from the health care system, and (3) to feel prepared and capable of implementing care plans. Five care transition services or provider behaviors were linked to achieving these outcomes: (1) using empathic language and gestures, (2) anticipating the patient's needs to support self-care at home, (3) collaborative discharge planning, (4) providing actionable information, and (5) providing uninterrupted care with minimal handoffs.

CONCLUSIONS

Clear accountability, care continuity, and caring attitudes across the care continuum are important outcomes for patients and caregivers. When these outcomes are achieved, care is perceived as excellent and trustworthy. Otherwise, the care transition is experienced as transactional and unsafe, and leaves patients and caregivers feeling abandoned by the health care system.

Components of Comprehensive and Effective Transitional Care

Transitional care (TC) has received widespread attention from researchers, health system leaders, clinicians, and policy makers as they attempt to improve health outcomes and reduce preventable hospital readmissions, yet little is known about the critical elements of effective TC and how they relate to patients' and caregivers' needs and experiences. To address this gap, the Patient-Centered Outcomes Research Institute (PCORI) funded a national study, Achieving patient-centered Care and optimized Health In care transitions by Evaluating the Value of Evidence (Project ACHIEVE). A primary aim of the study is the identification of TC components that yield desired patient and caregiver outcomes. Project ACHIEVE established a multistakeholder workgroup to recommend essential TC components for vulnerable Medicare beneficiaries. Guided by a review of published evidence, the workgroup identified and defined a preliminary set of components and then analyzed how well the set aligned with real-world patients' and caregivers' experiences. Through this process, the workgroup identified eight TC components: patient engagement, caregiver engagement, complexity and medication management, patient education, caregiver education, patients' and caregivers' well-being, care continuity, and accountability. Although the degree of attention given to each component will vary based on the specific needs of patients and caregivers, workgroup members agree that health systems need to address all components to ensure optimal TC for all Medicare beneficiaries.

Closing the Home Care Case: Clinicians’ Perspectives on Family Caregiving

Focus groups revealed five inherent conflicts that affect home health care clinicians’ interactions with family caregivers: (a) Services often depend on caregivers’ participation, but the home care system does not give them formal status or consideration; (b) clinicians must balance competing priorities within a short time frame; (c) clinicians recognize that families have unmet emotional and training needs, but benefits are not designed to address them; (d) clinicians face conflicting professional roles as patient advocates and service gatekeepers; and (e) agencies reserve social work services, a key to caregiver access to community resources, for their most difficult cases. Building a more rational system will involve raising awareness about the system’s limitation, providing more training and support for caregivers and the professionals who interact with them, and aligning financial incentives with the realities of what it takes to prepare caregivers to care for patients with complex needs when formal services end.

Closing the Home Care Case: Home Health Aides’ Perspectives on Family Caregiving

A series of focus groups with home health aides experienced in caring for patients with stroke or brain injury provided insight into how they experience their work and their relationship to family caregivers. Two issues merit more attention. First, aides reported that they do not always have all of the information, including diagnosis or previous history, which they need to provide appropriate care. Second, aides said they often receive little advance notice about when the case would close. Abrupt transitions are hard for aides, families, and patients who have often built up a good relationship. Agencies should establish better lines of communication for relevant information, correct misunderstandings about privacy rules, provide additional guidance about how to respond to caregivers’ questions, and provide adequate time for closure.

Plasma chemistry before and after two consecutive days of racing in sled dogs: associations between muscle damage and electrolyte status

Exercising long distance endurance sled dogs display plasma biochemistry changes characterised by elevations in creatine kinase (CK) and aspartate aminotransferase (AST), hypoproteinemia, hypoglobulinemia and decreases in sodium and potassium. The aim of this study was to compare resting to day 2 racing plasma biochemistry and associations between electrolytes and markers of muscle damage in well-conditioned sled dogs during a stage-stop race. Blood samples were obtained from 23 dogs prior to the start and on day 2, immediately after racing. Results showed significant decreases in potassium (day 0 – 4.7±0.3 and day 2 – 4.2±0.3 mEq/l), total protein (day 0 – 6.0±0.3 and day 2 – 5.5±0.4 g/dl) and albumin concentrations (day 0 – 3.9±0.2 and day 2 – 3.6±0.3 g/dl). Increases in AST (day 0 – 24±7 and day 2 – 137±97 U/l) and CK activities (day 0 – 129±39 and day 2 – 2,047±2,021 U/l) were also observed. Plasma sodium concentrations were not significantly different after day 2 of racing (day 0 – 153±5.2 and day 2 – 151±4.1). Alterations in plasma electrolytes, and increases in AST, CK, alanine aminotransferase and urea nitrogen were similar to those observed in long distance endurance sled dogs. A strong negative association was observed between plasma potassium and increases in plasma CK activity on day 2 (R2=0.69). The maintenance of sodium concentrations with a concurrent potassium decline, suggests sodium conservation via the renin-angiotensin-aldosterone pathway as previously shown in endurance sled dogs. The negative correlation between muscle damage and plasma potassium warrants further investigation regarding its relationship to rhabdomyolysis.

Public health imperative of the 21st century: innovations in palliative care systems, services, and supports to improve health and well-being of older americans

A primary aim of federal aging and health policy must be promoting innovations in palliative care systems, services, and supports that improve the experience of growing old in America. Older adults must contend today with increasing burden over the life course often as the result of life-limiting chronic pain and chronic illnesses as well as social and economic factors beyond their control. These burdens are frequently shared with unpaid family caregivers who provide significant uncompensated medical care and social support to their loved ones. Enjoyment of the highest attainable standard of physical and mental health, recognized as a fundamental human right under international law, remains a goal for all older adults and encompasses the right to palliative care. For many older Americans, especially vulnerable subgroups who face health and pain disparities, however, this goal remains elusive. A public health strategy for implementing palliative care policy interventions will help to build age-friendly environments, assure the availability and accessibility of palliative systems of care, essential medicines, and an adequate generalist-level workforce, and sustain diffusion of innovation across all levels of health and social provision. The 2015 White House Conference on Aging must make these realignments a policy priority in order to foster social and economic development for all older Americans.

Bridging troubled waters: family caregivers, transitions, and long-term care

Families are the bedrock of long-term care, but policymakers have traditionally considered them "informal" caregivers, as they are not part of the formal paid caregiving workforce. As chronic and long-term care systems have become more complex and as more demanding tasks have been shifted to families, this view is no longer sustainable. The care transition process offers a critical opportunity to treat family caregivers as important care partners. Enhancing their involvement, training, and support will contribute to reducing unnecessary rehospitalizations and improving patient outcomes. The contributions and experiences of family caregivers should be considered in gathering information to shape policies and practice; training health care professionals; developing programs; and reforming financing.

Dealing with the long-term social implications of research

Biomedical and behavioral research may affect strongly held social values and thereby create significant controversy over whether such research should be permitted in the first place. Institutional review boards (IRBs) responsible for protecting the rights and welfare of participants in research are sometimes faced with review of protocols that have significant implications for social policy and the potential for negative social consequences. Although IRB members often raise concerns about potential long-term social implications in protocol review, federal regulations strongly discourage IRBs from considering them in their decisions. Yet IRBs often do consider the social implications of research protocols and sometimes create significant delays in initiating or even prevent such research. The social implications of research are important topics for public scrutiny and professional discussion. This article examines the reasons that the federal regulations preclude IRBs from assessing the social risks of research, and examines alternative approaches that have been used with varying success by national advisory groups to provide such guidance. The article concludes with recommendations for characteristics of a national advisory group that could successfully fulfill this need, including sustainability, independence, diverse and relevant expertise, and public transparency.

HIPAA and talking with family caregivers: what does the law really say?

The Health Insurance Portability and Accountability Act of 1996 (PL 104-191), known as HIPAA, has confused and unnecessarily alarmed many conscientious health care providers. Nurses in particular are likely to be on the front line of family caregivers' inquiries, because physicians are often difficult to reach and because family caregivers look to nurses as sources of reliable information. A major retraining of health care providers at all levels is needed to dampen the "HIPAA scare" and clarify what HIPAA does and does not say about communication with family caregivers.

"This case is closed": family caregivers and the termination of home health care services for stroke patients

Policies promoting home- and community-based services and disease management models implicitly rely on family care, still the bedrock of long-term and chronic care in the United States. The United Hospital Fund studied family caregivers of stroke and brain injury patients when home care cases were opened and closed and found that even with short-term formal services, family caregivers provided three-quarters of the care. Patients' mobility impairments and Medicaid eligibility were the main factors in determining the amount and duration of formal services. Between one-third and one-half of family caregivers reported being inadequately prepared for the case closing. At all stages, family caregivers expressed significant isolation, anxiety, and depression. Therefore, home care agency practice and public policies should provide better education, support, and services for family caregivers.

Acceptance, avoidance, and ambiguity: conflicting social values about childhood disability

Advances in medical technology now permit children who need ventilator assistance to live at home rather than in hospitals or institutions. What does this ventilator-dependent life mean to children and their families? The impetus for this essay comes from a study of the moral experience of 12 Canadian families--parents, ventilator-dependent child, and well siblings. These families express great love for their children, take on enormous responsibilities for care, live with uncertainty, and attempt to create "normal" home environments. Nevertheless, they experience social isolation, sometimes even from their extended families and health care providers. Their lives are constrained in many ways. The challenges faced by parents of technology-dependent children raise questions of justice within society and within families.

Family caregiver research and the HIPAA factor

Research in family caregiving recently has become more challenging because of the strict protection of privacy mandated in the Health Insurance Portability and Accountability Act (HIPAA) of 1996. We ask when should Institutional Review Boards (IRBs) follow HIPAA rules to the letter and when might they use the waiver option? What is the appropriate balance between the goals of protecting the privacy of patients' personal health information and facilitating family-caregiver research that may benefit them and others? More particularly, should patients be gatekeepers for caregiver participation in minimal-risk research? We describe one approach that successfully met HIPAA criteria and also allowed high-quality research. In developing protocols and applying for IRB approval, researchers must be as familiar with HIPAA regulations as they are with IRB standards. Finally, we recommend changes in the review process that may facilitate research efforts with family caregivers while protecting important privacy interests.

Young adult caregivers: a first look at an unstudied population

OBJECTIVES

We examined the prevalence, characteristics, and responsibilities of young adults aged 18 to 25 years who are caregivers for ill, elderly, or disabled family members or friends.

METHODS

We analyzed 2 previously published national studies (from 1998 and 2004) of adult caregivers.

RESULTS

Young adult caregivers make up between 12% and 18% of the total number of adult caregivers. Over half are male, and the average age is 21. Most young adults are caring for a female relative, most often a grandmother. Young adult caregivers identified a variety of unmet needs, including obtaining medical help, information, and help making end-of-life decisions.

CONCLUSIONS

Analysis of these 2 surveys broadens our understanding of the spectrum of family caregivers by focusing on caregivers between the ages of 18 and 25 years. The high proportion of young men raises questions about the appropriateness of current support services, which are typically used by older women. Concerted efforts are essential to ensure that young adults who become caregivers are not deterred from pursuing educational and career goals.

The concept of vulnerability in disaster research

The concept of vulnerability in research derives from a specific set of historical circumstances relating to abuses in biomedical research. Now so many people and groups have been labeled vulnerable that the concept has lost much of its force. In disaster research, participants should not be automatically considered vulnerable unless they are legally designated as such, for example, children. Instead specific aspects of the research should be thoroughly examined. Examples are the potential for the participants to be pressured to participate in several protocols, political or social turmoil surrounding the disaster, and cognitive impairments or mental health problems. In addition to a careful consent process, there should be procedures in place to provide assistance to participants who experience serious distress.

Oversight of human participants research: identifying problems to evaluate reform proposals

The oversight of research involving human participants is widely believed to be inadequate. The U.S. Congress, national commissions, the Department of Health and Human Services, the Institute of Medicine, numerous professional societies, and others are proposing remedies based on the assumption that the main problems are researchers' conflict of interest, lack of institutional review board (IRB) resources, and the volume and complexity of clinical research. Developing appropriate reform proposals requires carefully delineating the problems of the current system to know what reforms are needed. To stimulate a more informed and meaningful debate, we delineate 15 current problems into 3 broad categories. First, structural problems encompass 8 specific problems related to the way the research oversight system is organized. Second, procedural problems constitute 5 specific problems related to the operations of IRB review. Finally, performance assessment problems include 2 problems related to absence of systematic assessment of the outcomes of the oversight system. We critically assess proposed reforms, such as accreditation and central IRBs, according to how well they address these 15 problems. None of the reforms addresses all 15 problems. Indeed, most focus on the procedural problems, failing to address either the structure or the performance assessment problems. Finally, on the basis of the delineation of problems, we outline components of a more effective reform proposal, including bringing all research under federal oversight, a permanent advisory committee to address recurrent ethical issues in clinical research, mandatory single-time review for multicenter research protocols, additional financial support for IRB functions, and a standardized system for collecting and disseminating data on both adverse events and the performance assessment of IRBs.

The good doctor: the carer's perspective

Carers are family members, friends, and neighbours who perform medical tasks and personal care, manage housekeeping and financial affairs, and provide emotional support to people who are ill, disabled, or elderly. From a carer's perspective, the primary requisite for a good doctor is competence. Assuming equal technical skills and knowledge, the difference between 'good' and 'bad' doctors comes down to attitudes and behaviour-communication. An important aspect of communication is what doctors say to carers, and how they interpret what carers say to them. Body language-stances, gestures and expression-communicates as well. Good doctors are surrounded by courteous, helpful and efficient assistants. Doctors can make two types of errors in dealing with carers. Type 1 errors occur when doctors exclude the carer from decision making and information. Type 2 errors occur when doctors speak only to the carer and ignore the patient. Good doctors, patients and carers confront the existential meaning of illness together.

"Special scrutiny": a targeted form of research protocol review

Research participants require ongoing protection of the kind already established in law and regulation. However, "special scrutiny" for certain types of research is also needed. Three criteria for special scrutiny are 1) research that involves initial experiences of translating new scientific advances into humans, especially when the intervention is novel, irreversible, or both; 2) research with a known or credible risk for significant harm (death or serious disability are the clearest examples) to research participants as a consequence of the experimental intervention and with no potential for offsetting direct medical benefit; or 3) research with a protocol that raises ethical questions about research design or implementation for which there is no consensus. Special scrutiny recognizes that not all research protocols are equally ethically challenging and aims to provide appropriate protection for all research participants.

The limitations of "vulnerability" as a protection for human research participants

Vulnerability is one of the least examined concepts in research ethics. Vulnerability was linked in the Belmont Report to questions of justice in the selection of subjects. Regulations and policy documents regarding the ethical conduct of research have focused on vulnerability in terms of limitations of the capacity to provide informed consent. Other interpretations of vulnerability have emphasized unequal power relationships between politically and economically disadvantaged groups and investigators or sponsors. So many groups are now considered to be vulnerable in the context of research, particularly international research, that the concept has lost force. In addition, classifying groups as vulnerable not only stereotypes them, but also may not reliably protect many individuals from harm. Certain individuals require ongoing protections of the kind already established in law and regulation, but attention must also be focused on characteristics of the research protocol and environment that present ethical challenges.