The Role of NS1 Protein in the Diagnosis of Flavivirus Infections.

Nonstructural protein 1 (NS1) is a glycoprotein among the flavivirus genus. It is found in both membrane-associated and soluble secreted forms, has an essential role in viral replication, and modulates the host immune response. NS1 is secreted from infected cells within hours after viral infection, and thus immunodetection of NS1 can be used for early serum diagnosis of dengue fever infections instead of real-time (RT)-PCR. This method is fast, simple, and affordable, and its availability could provide an easy point-of-care testing solution for developing countries. Early studies show that detecting NS1 in cerebrospinal fluid (CSF) samples is possible and can improve the surveillance of patients with dengue-associated neurological diseases. NS1 can be detected postmortem in tissue specimens. It can also be identified using noninvasive methods in urine, saliva, and dried blood spots, extending the availability and effective detection period. Recently, an enzyme-linked immunosorbent assay (ELISA) assay for detecting antibodies directed against Zika virus NS1 has been developed and used for diagnosing Zika infection. This NS1-based assay was significantly more specific than envelope protein-based assays, suggesting that similar assays might be more specific for other flaviviruses as well. This review summarizes the knowledge on flaviviruses' NS1's potential role in antigen and antibody diagnosis.

Multisystem inflammatory syndrome in children associated with COVID-19 presenting as cervical inflammation.

AIM: The major clinical manifestations multisystem inflammatory syndrome in children (MIS-C) are fever, gastrointestinal and cardiac. The aim of this study was to describe MIS-C in a series of patients who presented primarily with cervical manifestations. METHODS: We retrospectively reviewed medical records of all patients who met the Centers for Disease Control and Prevention and World Health Organization MIS-C diagnostic criteria treated at Hadassah-Hebrew University Medical Center between April 2020 and September 2021. RESULTS: Of 37 children diagnosed with MIS-C (median age: 10.2 years, range 1.5-18 years, 20 male) five, 13.5% (median age: 14.4 years, range 9.2-17.5 years) presented with cervical symptoms mimicking neck infections. One was hospitalised with a working diagnosis of retropharyngeal abscess, and four with acute cervical lymphadenitis that did not respond to early antibiotic treatment. All developed full MIS-C phenotype. CONCLUSION: MIS-C may present as cervical inflammation. An ill-appearing child with symptoms and/or signs of cervical inflammation should be evaluated for clinical and laboratory features of MIS-C, thereby facilitating prompt treatment of this potentially fatal disorder.

The association between cognitive impairment and community service use patterns in older people living in Australia.

Family plays a vital role in supporting individuals with dementia to reside in the community, thus delaying institutionalisation. Existing research indicates that the burden of care-giving is particularly high for those caring for a person with dementia. Yet, little is known about the uptake of community services by people with a diagnosis of dementia. Therefore, this study aims to better understand the relationship between cognitive impairment and the receipt of community care services. In order to examine the relationship, secondary data collected across Queensland, Australia, from 59,352 home-care clients aged 65 and over during 2007-2008 are analysed. This cross-sectional study uses regression analyses to estimate the relationship between cognitive impairment and service mix, while controlling for socio-demographic characteristics. The dependent variables include formal services, informal care and total home-care service hours during a 12-month period. The findings of this study demonstrate that cognitive impairment is associated with accessing more hours of respite and day centre care but fewer hours of other formal care services. Additionally, the likelihood of support from an informal caregiver increases when a client becomes cognitively impaired. Therefore, this study demonstrates that there is an increased need for respite programmes to support informal caregivers in the future, as the population of people living with dementia increases. These findings support the need for investigations of new and innovative respite models in the future.

Hospital employees' perceptions of fairness and job satisfaction at a time of transformational change.

Objective This study examines the relationships between job satisfaction and organisational justice during a time of transformational change. Methods Data collection occurred immediately before a major regional hospital's move to a greenfield site. Existing measures of job satisfaction and organisational justice were used. Data were analysed (n=316) using descriptive, correlation and regression methods together with interactions between predictor variables. Results Correlation coefficients for satisfaction and organisational justice variables were high and significant at the P<0.001 level. Results of a robust regression model (adjusted R(2)=0.568) showed all three components of organisational justice contributed significantly to employee job satisfaction. Interactions between the predictor variables showed that job satisfaction increased as the interactions between the predictor variables increased. Conclusions The finding that even at a time of transformational change staff perceptions of fair treatment will in the main result in high job satisfaction extends the literature in this area. In addition, it was found that increasing rewards for staff who perceive low levels of organisational justice does not increase satisfaction as much as for staff who perceive high levels of fairness. If people feel negative about their role, but feel they are well paid, they probably still have negative feelings overall. What is known about the topic? Despite much research highlighting the importance of job satisfaction and organisational justice in healthcare, no research has examined the influence of transformational change, such as a healthcare organisational relocation, on these factors. What does this paper add? The research adds to academic literature relating to job satisfaction and organisational justice. It highlights the importance of organisational justice in influencing the job satisfaction of staff. What are the implications for practitioners? Financial rewards do not necessarily motivate staff but low rewards do demotivate. Shortages of health professionals are often linked to a lack of job satisfaction, and recruitment and retention strategies are often based on salary.

How best practices are copied, transferred, or translated between health care facilities: A conceptual framework.

INTRODUCTION: In spite of significant investment in quality programs and activities, there is a persistent struggle to achieve quality outcomes and performance improvements within the constraints and support of sociopolitical parsimonies. Equally, such constraints have intensified the need to better understand the best practice methods for achieving quality improvements in health care organizations over time.This study proposes a conceptual framework to assist with strategies for the copying, transferring, and/or translation of best practice between different health care facilities. PURPOSE: Applying a deductive logic, the conceptual framework was developed by blending selected theoretical lenses drawn from the knowledge management and organizational learning literatures. FINDINGS: The proposed framework highlighted that (a) major constraints need to be addressed to turn best practices into everyday practices and (b) double-loop learning is an adequate learning mode to copy and to transfer best practices and deuteron learning mode is a more suitable learning mode for translating best practice. We also found that, in complex organizations, copying, transferring, and translating new knowledge is more difficult than in smaller, less complex organizations. We also posit that knowledge translation cannot happen without transfer and copy, and transfer cannot happen without copy of best practices. Hence, an integration of all three learning processes is required for knowledge translation (copy best practice-transfer knowledge about best practice-translation of best practice into new context). In addition, the higher the level of complexity of the organization, the more best practice is tacit oriented and, in this case, the higher the level of K&L capabilities are required to successfully copy, transfer, and/or translate best practices between organizations. PRACTICE IMPLICATIONS: The approach provides a framework for assessing organizational context and capabilities to guide copy/transfer/translation of best practices. A roadmap is provided to assist managers and practitioners to select appropriate learning modes for building success and positive systemic change.

Lymphoscintigraphy does not enhance sentinel node identification or alter management of patients with early breast cancer.

UNLABELLED: Lymphoscintigraphy (LS) is often performed before sentinel lymph node dissection (SLND) for breast cancer. The purpose of this study was to determine whether routine LS enhances rate of identification of sentinel nodes (SN), and if findings on LS alter either the SLND procedure or the subsequent patient management. METHODS: LS using technetium-99m sulfur colloid (99mTc) was performed in 136 consecutive patients undergoing SLND for invasive breast cancer. Three equal aliquots of 99mTc were injected peritumorally, and LS images were obtained at 60 to 120 min after 99mTc injection. Data were collected on the success of LS to visualize SN. Information regarding body mass index (BMI), biopsy type (core vs excisional), tumor location (medial vs lateral), and SN positivity were recorded and comparison was made with success of operative SN identification. In all SLND cases, 1% lymphazurin blue dye was used in addition to the 99mTc. RESULTS: LS failed to identify an SN in 9 of 136 cases (6.6%). Failed mappings did not correlate with biopsy type, tumor location, or SN positivity. There was a positive correlation between increased BMI and failed LS (p = <0.001). Failed LS did not predict operative SLND failure, as an SN was identified in 100% of cases (136/136), including the 9 with a failed LS. In 67% (6/9) of the failed LS, the SN was both hot and blue at operation. Internal mammary (IM) drainage was observed in 4% (6/136) of LS. Positive SN were found in 26% (35/136) of patients. Findings on LS did not affect adjuvant treatment decisions in any patient. CONCLUSIONS: There was a correlation between failed LS and BMI, but no correlation with biopsy type or tumor location. Drainage to extraaxillary sites was rare. LS findings did not enhance success of intraoperative identification of SN or alter the postoperative management of patients with early stage breast cancer.