COVID-19 has quickly spread throughout the world, necessitating assessment of effective containment methods. The purpose of this study was to examine the impact of government mandated school ...closures, stay at home orders and mask requirements
Cumulative incidence rates were calculated at 14-day intervals until the day of the first vaccine administration in the country. Rate ratios were calculated using negative binomial regression while investigating the effects of adjusting for several sociodemographic and medical factors
Faster implementation of mask mandates was consistently shown to be protective. States with mask mandates made at three to six months had a 1.61 times higher rate than those who implemented within one month (adjusted rate ratio = 1.61, 95% confidence interval: 1.23-2.10, P = .001). States with mask mandates made after 6 months or with no mandate had a 2.16 times higher rate than those who implemented within 1 month (adjusted rate ratio = 2.16, 95% confidence interval: 1.64-2.88, P < .0001). In contrast, both stay at home orders and school closures had no significant influence on disease trajectory.
The benefits of mask mandates are apparent, especially when mandates were issued within a month. The impact of school closing and stay at home orders were less clear.
Our results suggest that of the different physical distancing measures implemented by the government, mask mandates are the most important.
Objective: Offering comprehensive lesbian, gay, bisexual, transgender, queer/questioning, intersex, asexual (LGBTQIA+) friendly and sex-positive student health centers are central to institutions of ...higher education being able to retain and support students. Positive sexual experiences for LGBTQIA + students can have an impact on academic success but many LGBTQIA + students are discriminated against and are often victims of microaggressions. Participants: Twenty undergraduate students enrolled in a LGBTQIA+ health course. Methods: Students in an LGBTQIA + Health undergraduate course at a private Northeastern university assessed what mattered most to them when it came to creating a sex-positive healthcare environment that promotes LGBTQIA + inclusiveness and removes perceived barriers. Results: The themes included expanding mental health care, greater involvement of culturally-competent provider, establishing a stigma-free clinical environment, re-imagining the clinic waiting room, and facilitating sexual health advocacy. Conclusion: Re-envisioning the role of student health centers is critical for ensuring every student has a fair and just opportunity to achieve their full health potential.
The incidence of nasopharyngeal cancer (NPC) has been declining in the United States (US) in recent years. However, little is known about the latest trends in NPC mortality in the US population. This ...study aimed to examine the trends in NPC mortality rate by age, sex, race and ethnicity and US Census Region from 1999 to 2020.
Mortality data were extracted from the Centers for Disease Control and Prevention's Wide-ranging Online Data for Epidemiologic Research (WONDER) database. Decedents whose cause of death was NPC were identified using the International Classification of Diseases Codes, 10th Revision: C11.0-C11.9. Trends in age adjusted mortality rates (AAMR) from NPC were assessed using a joinpoint regression model. Annual Percentage Changes (APC) and Average Annual Percentage Changes were examined overall and by age, sex, race and ethnicity and census region.
From 1999 through 2020, a total of 14 534 NPC deaths were recorded in the US (AAMR = 0.2 per 100 000; 95% CI: 0.2, 0.2). Overall trends remained stationary throughout the study period. Since 2006, recent trends declined by 6.1% per year (95% CI: -8.4, -3.7) among Non-Hispanic Whites, and by 2.7% per year among Non-Hispanic Blacks, Asians/Pacific Islanders and Hispanics. Trends either stabilized or declined by sex, age and US Census Region. Similar results were obtained when the analysis was restricted to decedents aged 65 years and above.
Stationary or declining trends in NPC mortality could be due to the falling incidence of the disease and/or advances in medical diagnosis and treatment. Considering the enigmatic nature of NPC, future studies should explore the genetic and sociodemographic factors associated with the trends reported in this study.
HIV testing is an important strategy for controlling and ultimately ending the global pandemic. Oral rapid HIV testing (ORHT) is an evidence-based strategy and the evidence-based shows is favored ...over traditional blood tests in many key populations. The dental setting has been found to be a trusted, convenient, and yet untapped venue to conduct ORHT. This study assessed the HIV testing behaviors and willingness to receive ORHT among dental patients in Xi'an, China.
A cross-sectional survey of dental patients from Xi'an was conducted from August to September 2017. Dental patients were recruited using a stratified cluster sampling. A 44-item survey was used to measure HIV/AIDS knowledge, HIV testing behaviors, and willingness to receive ORHT.
Nine hundred and nine dental patients completed the survey with a mean HIV/AIDS knowledge score of 10.7/15 (SD 2.8). Eighty-four participants (9.2%) had previously received an HIV test. Participants would have a high rate of HIV testing if they had higher monthly income (OR = 1.982, 95% CI: 1.251-3.140) and a higher HIV/AIDS knowledge score (OR = 1.137, 95% CI: 1.032-1.252). Five hundred and eighty-two participants (64.0%) were willing to receive ORHT before a dental treatment, 198 (21.8%) were not sure, and 129 (14.2%) were unwilling. Logistic regression showed that age (OR = 0.970, 95% CI: 0.959-0.982), HIV/AIDS knowledge score (OR = 1.087, 95% CI: 1.031-1.145), previous HIV test (OR = 2.057, 95% CI: 1.136-3.723), having advanced HIV testing knowledge (OR = 1.570, 95% CI: 1.158-2.128), and having advanced ORHT knowledge (OR = 2.074, 95%: CI 1.469-2.928) were the factors affecting the willingness to receive ORHT.
The majority of dental patients had not previously received an HIV test, although many were receptive to being tested in the dental setting. The dental setting as a venue to screen people for HIV needs further exploration, particularly because many people do not associate dentistry with chairside screenings. Increasing awareness of ORHT and reducing testing price can further improve the patient's willingness to receive ORHT.
Abstract
Despite the adoption of pre-exposure prophylaxis (PrEP) as a crucial HIV intervention, uptake remains suboptimal among men who have sex with men, a sexual minority group, due to barriers ...like cost and stigma. Peer change agents (PCAs) disseminate PrEP information within their social networks. This study explores the reciprocal effects of an online community-based participatory intervention on PCAs, focusing on their transformed PrEP uptake perceptions—leadership efficacy, social network dynamics, attitudes, perceived benefits and barriers and self-efficacy. Leveraging insights from the PrEP Chicago Study, our research addresses a key gap in community-based participatory interventions for PrEP uptake: the transformative experiences and perception shifts of PCAs involved in these interventions. We engaged 20 men who have sex with men, aged 18–45, as PCAs in a one-group pretest–posttest design intervention, which disseminated PrEP communications within their preferred online networks. We utilized the PrEP Chicago Study’s 45 Likert items, tailored to reveal the PCAs’ transformative potential. Data on PrEP uptake perceptions, sociodemographics and social media use were captured and analyzed using the Wilcoxon matched-pairs signed-rank test, a nonparametric method. PCAs demonstrated significant changes in their PrEP uptake perceptions, including leadership capacity, social network dynamics, attitudes toward PrEP, perceived benefits, barriers and self-efficacy. Our intervention highlights the reciprocal transformation PCAs undergo when disseminating PrEP information. This study adds a new dimension to community-based PrEP interventions and underscores the need for continued refinement of peer-led strategies to optimize the transformative potential of PCAs.
The Caenorhabditis elegans embryo is a powerful model for studying neural development, but conventional imaging methods are either too slow or phototoxic to take full advantage of this system. To ...solve these problems, we developed an inverted selective plane illumination microscopy (iSPIM) module for noninvasive high-speed volumetric imaging of living samples. iSPIM is designed as a straightforward add-on to an inverted microscope, permitting conventional mounting of specimens and facilitating SPIM use by development and neurobiology laboratories. iSPIM offers a volumetric imaging rate 30x faster than currently used technologies, such as spinning-disk confocal microscopy, at comparable signal-to-noise ratio. This increased imaging speed allows us to continuously monitor the development of C, elegans embryos, scanning volumes every 2 s for the 14-h period of embryogenesis with no detectable phototoxicity. Collecting ∼25,000 volumes over the entirety of embryogenesis enabled in toto visualization of positions and identities of cell nuclei. By merging two-color iSPIM with automated lineaging techniques we realized two goals: (i) identification of neurons expressing the transcription factor CEH-10/Chx10 and (ii) visualization of their neurodevelopmental dynamics. We found that canal-associated neurons use somal translocation and amoeboid movement as they migrate to their final position in the embryo. We also visualized axon guidance and growth cone dynamics as neurons circumnavigate the nerve ring and reach their targets in the embryo. The high-speed volumetric imaging rate of iSPIM effectively eliminates motion blur from embryo movement inside the egg case, allowing characterization of dynamic neurodevelopmental events that were previously inaccessible.
HIV and stigma in the healthcare setting Yuvaraj, Anandi; Mahendra, Vaishali S.; Chakrapani, Venkatesan ...
Oral diseases,
September 2020, 2020-09-00, 20200901, Letnik:
26, Številka:
S1
Journal Article
Recenzirano
People living with HIV (PLHIV) continue to endure stigma and discrimination in the context of health care despite global improvements in health outcomes. HIV stigma persists within healthcare ...settings, including dental settings, manifesting itself in myriad, intersecting ways, and has been shown to be damaging in the healthcare setting. Stigmatising practices may include excessive personal protective equipment, delaying the provision of care or unnecessary referral of PLHIV to specialist services in order to access care. The workshop entitled “HIV and Stigma in the Healthcare Setting” provided an overview of the concept and manifestation of HIV stigma and explored the disproportionate burden it places on groups that face additional disadvantages in accessing care. The final part of the workshop concluded with a review of institutional and community‐based interventions that worked to reduce HIV stigma and group discussion of the ways in which these strategies might be adapted to the dental workforce.
AceTree, a software application first released in 2006, facilitates exploration, curation and editing of tracked C. elegans nuclei in 4-dimensional (4D) fluorescence microscopy datasets. Since its ...initial release, AceTree has been continuously used to interact with, edit and interpret C. elegans lineage data. In its 11 year lifetime, AceTree has been periodically updated to meet the technical and research demands of its community of users. This paper presents the newest iteration of AceTree which contains extensive updates, demonstrates the new applicability of AceTree in other developmental contexts, and presents its evolutionary software development paradigm as a viable model for maintaining scientific software.
Large scale updates have been made to the user interface for an improved user experience. Tools have been grouped according to functionality and obsolete methods have been removed. Internal requirements have been changed that enable greater flexibility of use both in C. elegans contexts and in other model organisms. Additionally, the original 3-dimensional (3D) viewing window has been completely reimplemented. The new window provides a new suite of tools for data exploration.
By responding to technical advancements and research demands, AceTree has remained a useful tool for scientific research for over a decade. The updates made to the codebase have extended AceTree's applicability beyond its initial use in C. elegans and enabled its usage with other model organisms. The evolution of AceTree demonstrates a viable model for maintaining scientific software over long periods of time.
To exploit the flood of data from advances in high throughput imaging of optically sectioned nuclei, image analysis methods need to correctly detect thousands of nuclei, ideally in real time. ...Variability in nuclear appearance and undersampled volumetric data make this a challenge.
We present a novel 3D nuclear identification method, which subdivides the problem, first segmenting nuclear slices within each 2D image plane, then using a shape model to assemble these slices into 3D nuclei. This hybrid 2D/3D approach allows accurate accounting for nuclear shape but exploits the clear 2D nuclear boundaries that are present in sectional slices to avoid the computational burden of fitting a complex shape model to volume data. When tested over C. elegans, Drosophila, zebrafish and mouse data, our method yielded 0 to 3.7% error, up to six times more accurate as well as being 30 times faster than published performances. We demonstrate our method's potential by reconstructing the morphogenesis of the C. elegans pharynx. This is an important and much studied developmental process that could not previously be followed at this single cell level of detail.
Because our approach is specialized for the characteristics of optically sectioned nuclear images, it can achieve superior accuracy in significantly less time than other approaches. Both of these characteristics are necessary for practical analysis of overwhelmingly large data sets where processing must be scalable to hundreds of thousands of cells and where the time cost of manual error correction makes it impossible to use data with high error rates. Our approach is fast, accurate, available as open source software and its learned shape model is easy to retrain. As our pharynx development example shows, these characteristics make single cell analysis relatively easy and will enable novel experimental methods utilizing complex data sets.
HIV testing: What, where and how? Santella, Anthony J.; Majam, Mohammed; Van Ngo, Huu ...
Oral diseases,
September 2020, 2020-09-00, 20200901, Letnik:
26, Številka:
S1
Journal Article
Recenzirano
Globally, one in four people living with HIV are unaware of their status. Current HIV testing services’ strategies are falling short of reaching all, and thus, HIV testing should be offered in more ...decentralized and non‐traditional settings such as the dental and community settings. The workshop titled “HIV Testing: What, Where, and How?” provided an overview of concepts and advances in HIV point of care and self‐testing diagnostics and a discussion on the implementation of HIV self‐test interventions in different healthcare settings and its impact thereof. We also described how to build layperson capacity to deliver HIV testing in community settings. Additionally, we discussed what we have learned from expanding HIV testing beyond the specialist setting. We also noted considerations (i.e. provider willingness, test selection, training and preparing testing environment) dentists and other non‐specialist providers need to account for if they are planning to conduct HIV testing. Finally, we highlighted facilitators and barriers to implementing HIV testing in the dental setting on a global scale. These considerations are critical to meeting the UNAIDS 90–90–90 target to help end the HIV/AIDS epidemic.
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