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Estimating total infection levels, including unreported and asymptomatic infections, is important for understanding community disease transmission. Wastewater can provide a pooled community sample to estimate total infections that is independent of case reporting biases toward individuals with moderate to severe symptoms and by test-seeking behavior and access. We derive three mechanistic models for estimating community infection levels from wastewater measurements based on a description of the processes that generate SARS-CoV-2 RNA signals in wastewater and accounting for the fecal strength of wastewater through endogenous microbial markers, daily flow, and per-capita wastewater generation estimates. The models are illustrated through two case studies of wastewater data collected during 2020–2021 in Virginia Beach, VA, and Santa Clara County, CA. Median simulated infection levels generally were higher than reported cases, but at times, were lower, suggesting a discrepancy between the reported cases and wastewater data, or inaccurate modeling results. Daily simulated infection estimates showed large ranges, in part due to dependence on highly variable clinical viral fecal shedding data. Overall, the wastewater-based mechanistic models are useful for normalization of wastewater measurements and for understanding wastewater-based surveillance data for public health decision-making but are currently limited by lack of robust SARS-CoV-2 fecal shedding data.

Beaches often receive fecal contamination from more than one source. Human sources include untreated sewage as well as treated wastewater effluent, and animal sources include wildlife such as gulls. Different contamination sources are expected to pose different health risks to swimmers. Genetic microbial source tracking (MST) markers can be used to detect bacteria that are associated with different animal sources, but the health risks associated with a mixture of MST markers are unknown. This study presents a method for predicting these health risks, using human- and gull-associated markers as an example. Quantitative Microbial Risk Assessment (QMRA) is conducted with MST markers as indicators. We find that risks associated with exposure to a specific concentration of a human-associated MST marker (HF) are greater if the HF source is untreated sewage rather than treated wastewater effluent. We also provide a risk-based threshold of HF from untreated sewage at a beach, to stay below a predicted illness risk of 3 per 100 swimmers, that is a function of gull-associated MST marker (CAT) concentration.

A record review was used to examine case management services provided to 36 workers who sustained a catastrophic or medically complex injury, and who were referred to a case management program. The aims of this phase of the evaluation were to identify and describe: • Workers' demographics and personal attributes, • The structures and processes that affected the course of these cases, and • The role of the nurse case manager (NCM). A data collection instrument was developed to collect quantitative and qualitative information. Structural factors that emerged as most consequential included the quality and quantity of the injured worker's social support and the employment situation, including the availability of a job post-injury, employer support, and worker motivation. Process variables identified included the interactions of service providers including communication, and collaboration. The NCM was described as a monitor, coordinator, supporter, and advocate for the worker. Additionally, the NCM served as a consultant to other service providers and played a key role in the implementation of cost containment strategies.

The perceptions of service providers involved in case management services are described here. The service providers included claims managers, occupational nurse consultants, attending physicians, and nurse case managers. The purposes of this phase of the study were to describe these providers' perceptions about the case management program; to organize findings according to the quality assessment model that guided this study (including structure, function, and outcomes); and to identify barriers and facilitators to satisfaction with case management services. Structural factors that affected services included the workers' compensation system, construction of the service team, roles within the program, and individual attributes of service providers. Process factors were conflicts among parties, role of communication, and interaction with workers. Outcomes were described in terms of program efficiency and effectiveness. Data are used to illustrate and explain each of these themes.

1. Occupational health nurses can advocate for fair and equitable policies for both workers and employers. Assisting workers to understand and negotiate through the workers compensation system can minimize suspicion among workers and service providers, and can increase the effectiveness and efficiency of service provision. 2. Occupational health nurses can work with the team of service providers and the injured worker to develop appropriate and realistic goals for service provision. Make sure there is clarity related to the roles and responsibilities of all persons on the team (including the injured worker) is essential. Consistency and continuity of services throughout the life of the case is crucial. 3. The injury and its sequelae have personal meaning to the worker that may profoundly affect the outcome of their case. The OHN/CM must be sensitive and responsive to the worker's issues and concerns, and respectful of their views. Workers must be assisted to identify and tap into their social support systems. 4. Occupational health nurse/case managers should take an active role in developing and advocating for strategies that will assure effective and meaningful communication among all parties involved in a case.

A major goal of case management programs is the worker's timely return to work. Few studies have examined return to work from the perspective of the injured worker. This article describes the findings from the case management evaluation that describe the return to work experience of workers who sustained catastrophic injuries, or who had secondary conditions or complications following the injury occurrence. Among the factors determined to affect the return to work experience were structural factors (i.e., psychosocial variables including job satisfaction and relationship with employer and coworkers, financial pressures, and system issues such as securing benefits) and process factors (i.e., interaction with service providers and with the workers' compensation system). Outcomes are described in terms of satisfaction with services and return to work.

An increasing number of employers and third party administrators are choosing case management as a strategy to coordinate services for workers who sustain an occupational injury or illness. The successful delivery of case management services requires the service provider possess special skills and knowledge. Occupational health nurses are uniquely qualified to provide case management services to injured and ill workers. The effectiveness of case management services is generally described in terms of costs and quality of services; thus, determining the effectiveness of a case management program requires an evaluation of costs and service quality. Language: en

This article describes the findings from a study of injured workers conducted as part of a multifaceted evaluation study of a case management program. The sample consisted of workers who filed a workers' compensation claim between January 1 and September 30, 1995. Data collection consisted of written surveys (n = 45), personal interviews (n = 27), and telephone interviews (n = 16). The findings from this study provided many insights into the injured workers' personal and work experiences, and, in particular, their perceptions of their experience with the nurse case management program. Workers satisfied with services described the nurse case manager (NCM) as having the ability to see the "big picture," to develop appropriate goals, and to anticipate client needs. Dissatisfied workers reported feeling unimportant in terms of service provision. They reported feeling that "the system" did not respond to their needs, and that the NCM was uninterested and disrespectful. This vivid portrayal of workers' experiences and perceptions of case management services provides valuable information about the world view of the injured worker. Language: en

An adaptation process involving three cognitive themes provides the framework for community nursing model for prenatal care on the island of Hawaii. The themes are based on the cognitive adaptation model developed by Taylor (1983) and include search for meaning, sense of mastery, and self-esteem. Each theme is used to guide public health nurses and is identified during designated encounters between the nurse and woman throughout the duration of prenatal care. A focus on adaptation themes for each trimester of pregnancy expands on the medical model of prenatal care to highlight developmental processes of childbearing and broaden the scope of practice for public health nurses responsible for assessment and intervention in the community.