Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 11 de 11
Filtrar
1.
Viruses ; 15(3)2023 02 25.
Artigo em Inglês | MEDLINE | ID: covidwho-2255562

RESUMO

In the summer of 2020, it became clear that the genetic composition of SARS-CoV-2 was changing rapidly. This was highlighted by the rapid emergence of the D614G mutation at that time. In the autumn of 2020, the project entitled "Agility" was initiated with funding from the Coalition for Epidemic Preparedness Innovations (CEPI) to assess new variants of SARS-CoV-2. The project was designed to reach out and intercept swabs containing live variant viruses in order to generate highly characterised master and working stocks, and to assess the biological consequences of the rapid genetic changes using both in vitro and in vivo approaches. Since November 2020, a total of 21 variants have been acquired and tested against either a panel of convalescent sera from early in the pandemic, and/or a panel of plasma from triple-vaccinated participants. A pattern of continuous evolution of SARS-CoV-2 has been revealed. Sequential characterisation of the most globally significant variants available to us, generated in real-time, indicated that the most recent Omicron variants appear to have evolved in a manner that avoids immunological recognition by convalescent plasma from the era of the ancestral virus when analysed in an authentic virus neutralisation assay.


Assuntos
COVID-19 , SARS-CoV-2 , Humanos , SARS-CoV-2/genética , COVID-19/prevenção & controle , Soroterapia para COVID-19 , Mutação , Pandemias , Anticorpos Neutralizantes , Anticorpos Antivirais , Glicoproteína da Espícula de Coronavírus
2.
Viruses ; 15(3)2023 03 21.
Artigo em Inglês | MEDLINE | ID: covidwho-2255076

RESUMO

Neutralizing antibody titers are an important measurement of the effectiveness of vaccination against SARS-CoV-2. Our laboratory has set out to further verify the functionality of these antibodies by measuring the neutralization capacity of patient samples against infectious SARS-CoV-2. Samples from patients from Western New York who had been vaccinated with the original Moderna and Pfizer vaccines (two doses) were tested for neutralization of both Delta (B.1.617.2) and Omicron (BA.5). Strong correlations between antibody levels and neutralization of the delta variant were attained; however, antibodies from the first two doses of the vaccines did not have good neutralization coverage of the subvariant omicron BA.5. Further studies are ongoing with local patient samples to determine correlation following updated booster administration.


Assuntos
COVID-19 , SARS-CoV-2 , Humanos , COVID-19/prevenção & controle , Anticorpos , Laboratórios , Anticorpos Neutralizantes , Anticorpos Antivirais
3.
J Sex Marital Ther ; : 1-24, 2022 May 04.
Artigo em Inglês | MEDLINE | ID: covidwho-2241016

RESUMO

The purpose of this study is to assess how the COVID-19 pandemic impacted various sexual behaviors and levels of sexual and relationship satisfaction by performing a content analysis of participants' (N = 1051 American adults) responses to open-ended survey questions. Results revealed a variety of impacts that increased, decreased, or otherwise qualitatively changed sexual behavior and satisfaction. Major themes included emotions and mental health, changes in routines, social distancing and fears related to COVID-19, and changes in romantic relationships. These findings are contextualized within the emerging quantitative research on COVID-19 and sexuality, and areas for future research based on these findings are discussed.

4.
Health Lit Res Pract ; 6(4): e310-e315, 2022 10.
Artigo em Inglês | MEDLINE | ID: covidwho-2155466

RESUMO

People who are deaf and hard-of-hearing (DHH) struggle with information marginalization and limited health literacy, challenging their ability to access information on preventing coronavirus disease 2019 (COVID-19). This study assessed the relationship between language preference, health literacy, and COVID-19 information barriers among parents who are DHH in the United States. Data were drawn from a larger study focused on individuals who are DHH who had given birth in the past 10 years. Respondents completed a web-based survey between March 2020 and July 2021. We segmented respondents by language preference [i.e., American Sign Language (ASL), English, or bilingual ASL/English] and used logistic regression models to test the hypothesis that language preference and health literacy were both associated with COVID-19 information marginalization. Of the total sample (N = 417), approximately 17% had limited health literacy, and 22% reported experiencing difficulty accessing information about COVID-19. In adjusted analyses, respondents with limited health literacy ([adjusted odds ratio] aOR = 2.245) and Hispanic ethnicity (aOR = 2.149) had higher risk of reporting information access barriers. There was no association between language preference and reporting COVID-19 information barriers. However, individuals who are DHH with limited health literacy were at higher risk of experiencing information marginalization during the ongoing COVID-19 pandemic, highlighting the need for tailored information based on access needs. [HLRP: Health Literacy Research and Practice. 2022;6(4):e310-e315.].


Assuntos
COVID-19 , Letramento em Saúde , Pessoas com Deficiência Auditiva , Humanos , Pandemias/prevenção & controle , Acesso à Informação
5.
JMIR Med Educ ; 8(2): e38050, 2022 Jun 30.
Artigo em Inglês | MEDLINE | ID: covidwho-1923870

RESUMO

BACKGROUND: Anesthesiology education has undergone profound changes over the past century, from a pure clinical apprenticeship to novel comprehensive curricula based on andragogic learning theories. Combined with institutional and regulatory requirements, these new curricula have propagated professionalization of the clinician-educator role. A significant number of clinician-educator anesthesiologists, often with support from department chairs, pursue formal health professions education (HPE) training, yet there are no published data demonstrating the benefits or costs of these degrees to educational leaders. OBJECTIVE: This study aims to collect the experiences of anesthesiologists who have pursued HPE degrees to understand the advantages and costs of HPE degrees to anesthesiologists. METHODS: Investigators performed a qualitative study of anesthesiologists with HPE degrees working at academic medical centers. Interviews were thematically analyzed via an iterative process. They were coded using a team-based approach, and representative themes and exemplary quotations were identified. RESULTS: Seven anesthesiologists were interviewed, representing diverse geographic regions, subspecialties, and medical institutions. Analyses of interview transcripts resulted in the following 6 core themes: outcomes, extrinsic motivators, intrinsic motivators, investment, experience, and recommendations. The interviewees noted the advantages of HPE training for those wishing to pursue leadership or scholarship in medical education; however, they also noted the costs and investment of time in addition to preexisting commitments. The interviewees also highlighted the issues faculty and chairs might consider for the optimal timing of HPE training. CONCLUSIONS: There are numerous professional and personal benefits to pursuing HPE degrees for faculty interested in education leadership or scholarship. Making an informed decision to pursue HPE training can be challenging when considering the competing pressures of clinical work and personal obligations. The experiences of the interviewed anesthesiologists offer direction to future anesthesiologists and chairs in their decision-making process of whether and when to pursue HPE training.

6.
J Expo Sci Environ Epidemiol ; 32(5): 751-758, 2022 09.
Artigo em Inglês | MEDLINE | ID: covidwho-1815512

RESUMO

BACKGROUND: Evidence is needed on the presence of SARS-CoV-2 in various types of environmental samples and on the estimated transmission risks in non-healthcare settings on campus. OBJECTIVES: The objective of this research was to collect data on SARS-CoV-2 viral load and to examine potential infection risks of people exposed to the virus in publicly accessible non-healthcare environments on a university campus. METHODS: Air and surface samples were collected using wetted wall cyclone bioaerosol samplers and swab kits, respectively, in a longitudinal environmental surveillance program from August 2020 until April 2021 on the University of Michigan Ann Arbor campus. Quantitative rRT-PCR with primers and probes targeting gene N1 were used for SARS-CoV-2 RNA quantification. The RNA concentrations were used to estimate the probability of infection by quantitative microbial risk assessment modeling and Monte-Carlo simulation. RESULTS: In total, 256 air samples and 517 surface samples were collected during the study period, among which positive rates were 1.6% and 1.4%, respectively. Point-biserial correlation showed that the total case number on campus was significantly higher in weeks with positive environmental samples than in non-positive weeks (p = 0.001). The estimated probability of infection was about 1 per 100 exposures to SARS-CoV-2-laden aerosols through inhalation and as high as 1 per 100,000 exposures from contacting contaminated surfaces in simulated scenarios. SIGNIFICANCE: Viral shedding was demonstrated by the detection of viral RNA in multiple air and surface samples on a university campus. The low overall positivity rate indicated that the risk of exposure to SARS-CoV-2 at monitored locations was low. Risk modeling results suggest that inhalation is the predominant route of exposure compared to surface contact, which emphasizes the importance of protecting individuals from airborne transmission of SARS-CoV-2 and potentially other respiratory infectious diseases. IMPACT: Given the reoccurring epidemics caused by highly infectious respiratory viruses in recent years, our manuscript reinforces the importance of monitoring environmental transmission by the simultaneous sampling and integration of multiple environmental surveillance matrices for modeling and risk assessment.


Assuntos
COVID-19 , SARS-CoV-2 , Humanos , Veículos Automotores , RNA Viral/análise , Aerossóis e Gotículas Respiratórios , Universidades
7.
Human Organization ; 81(1):71, 2022.
Artigo em Inglês | ProQuest Central | ID: covidwho-1738424

RESUMO

Smith revisits her work entitled "The Cultural Conceptions of Dengue Fever in the Cayo District of Belize." This work was not only transformative for the Cayo community but also for her. The overarching purpose behind this study is as relevant today as ever as we continue to navigate the COVID-19 pandemic. Due to modern technology, we have all had the opportunity to witness how COVID-19 has affected us all from a global standpoint. With dengue fever in the Cayo District, community education was an integral aspect of changing the community conceptions to improve disease control and prevention. This also holds true with COVID-19 as we continue to bear witness to the influence of misinformation and lack of adequate community education on the perceptions and response to COVID-19 in our communities. Community education efforts are being battled by the "individual"--a new concept given birth largely by the rise and accessibility of social media. This shift in the culture of communication has vastly influenced how we as humans understand and respond to COVID-19.

8.
Environmental Research Letters ; 15(10), 2020.
Artigo em Inglês | Web of Science | ID: covidwho-894526

RESUMO

The COVID-19 pandemic has created substantial and dynamic disruptions in society, personal behavior, and potentially chronic sound exposures, which are associated with hearing loss, cardiovascular disease, and other health impacts. Leveraging preliminary data from our unique nationwide Apple Hearing Study, we explored changes in personal sound exposures resulting from COVID-19-related social distancing. Volunteer participants opted to share environmental sound data from their Apple Watch and headphone sound data from their iPhone. Participants for this analysis were chosen from four states which exhibited diverse responses to COVID-19. Equivalent continuous average sound exposures (in A-weighted decibels, dBA) were computed per person-day and normalized to 8 hour L(EX8h)exposures. Daily mean L(EX8h)exposures across two time periods, a baseline period (before the first known US COVID-19 death at the time of analysis) and an intervention period (starting with each state's first COVID-related public health social distancing announcement and ending on April 22, 2020) were defined to assess changes in sound exposure. We modeled sound levels across 5,894 participants and 516,729 monitored days using a linear mixed-effects model with random effects for participant. The overall reduction in LEX8h between baseline and intervention was 2.6 +/- 0.05 dBA (mean +/- SE). There was a significant day-of-week effect during the baseline period, with the lowest exposures on Monday and the highest on Saturday. This effect was not noted during the intervention period. COVID-19 social distancing measures were associated with an approximately 3 dBA reduction in personal environmental sound exposures;this represents a substantial and meaningful reduction in this harmful exposure. Our analysis demonstrates the utility of everyday use devices in detecting behavior and exposure changes associated with the COVID-19 pandemic, and the usefulness of longitudinal, large-scale characterization of personal exposures and health impacts using wearable technology.

9.
Int J Equity Health ; 19(1): 170, 2020 10 01.
Artigo em Inglês | MEDLINE | ID: covidwho-810403

RESUMO

With the threat of coronavirus disease 2019 (Covid-19) enduring in the United States, effectively and equitably implementing testing, tracing, and self-isolation as key prevention and detection strategies remain critical to safely re-opening communities. As testing and tracing capacities increase, frameworks are needed to inform design and delivery to ensure their effective implementation and equitable distribution, and to strengthen community engagement in slowing and eventually stopping Covid-19 transmission. In this commentary, we highlight opportunities for integrating implementation research into planned and employed strategies in the United States to accelerate reach and effectiveness of interventions to more safely relax social distancing policies and open economies, schools, and other institutions. Implementation strategies, such as adapting evidence-based interventions based on contextual factors, promoting community engagement, and providing data audit and feedback on implementation outcomes, can support the translation of policies on testing, tracing, social distancing, and public mask use into reality. These data can demonstrate how interventions are put into practice and where adaptation in policy or practice is needed to respond to the needs of specific communities and socially vulnerable populations. Incorporating implementation research into Covid-19 policy design and translation into practice is urgently needed to mitigate the worsening health inequities in the pandemic toll and response. Applying rigorous implementation research frameworks and evaluation systems to the implementation of evidence-based interventions which are adapted to contextual factors can promote effective and equitable pandemic response and accelerate learning both among local stakeholders as well as between states to further inform their varied experiences and responses to the pandemic.


Assuntos
Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/prevenção & controle , Disparidades nos Níveis de Saúde , Ciência da Implementação , Pandemias/prevenção & controle , Pneumonia Viral/epidemiologia , Pneumonia Viral/prevenção & controle , COVID-19 , Humanos , Política Pública , Estados Unidos/epidemiologia
10.
Am J Infect Control ; 49(4): 516-520, 2021 04.
Artigo em Inglês | MEDLINE | ID: covidwho-800031

RESUMO

A significant change for patients and families during SARs-CoV-2 has been the restriction of visitors for hospitalized patients. We analyzed SARs-CoV-2 hospital visitation policies and found widespread variation in both development and content. This variation has the potential to engender inequity in access. We propose guidance for hospital visitation policies for this pandemic to protect, respect, and support patients, visitors, clinicians, and communities.


Assuntos
COVID-19/epidemiologia , Administração Hospitalar , Política Organizacional , SARS-CoV-2 , Visitas a Pacientes , Família , Humanos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA