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4.
Nat Commun ; 13(1): 7374, 2022 11 30.
Artigo em Inglês | MEDLINE | ID: mdl-36450726

RESUMO

The ability to identify the designer of engineered biological sequences-termed genetic engineering attribution (GEA)-would help ensure due credit for biotechnological innovation, while holding designers accountable to the communities they affect. Here, we present the results of the first Genetic Engineering Attribution Challenge, a public data-science competition to advance GEA techniques. Top-scoring teams dramatically outperformed previous models at identifying the true lab-of-origin of engineered plasmid sequences, including an increase in top-1 and top-10 accuracy of 10 percentage points. A simple ensemble of prizewinning models further increased performance. New metrics, designed to assess a model's ability to confidently exclude candidate labs, also showed major improvements, especially for the ensemble. Most winning teams adopted CNN-based machine-learning approaches; however, one team achieved very high accuracy with an extremely fast neural-network-free approach. Future work, including future competitions, should further explore a wide diversity of approaches for bringing GEA technology into practical use.


Assuntos
Biotecnologia , Engenharia Genética , Percepção Social , Clonagem Molecular , Técnicas Genéticas
7.
BMC Public Health ; 21(1): 2132, 2021 11 20.
Artigo em Inglês | MEDLINE | ID: mdl-34801014

RESUMO

BACKGROUND: The global spread of COVID-19 has shown that reliable forecasting of public health related outcomes is important but lacking. METHODS: We report the results of the first large-scale, long-term experiment in crowd-forecasting of infectious-disease outbreaks, where a total of 562 volunteer participants competed over 15 months to make forecasts on 61 questions with a total of 217 possible answers regarding 19 diseases. RESULTS: Consistent with the "wisdom of crowds" phenomenon, we found that crowd forecasts aggregated using best-practice adaptive algorithms are well-calibrated, accurate, timely, and outperform all individual forecasters. CONCLUSIONS: Crowd forecasting efforts in public health may be a useful addition to traditional disease surveillance, modeling, and other approaches to evidence-based decision making for infectious disease outbreaks.


Assuntos
COVID-19 , Surtos de Doenças , Previsões , Humanos , Inteligência , Modelos Estatísticos , SARS-CoV-2
8.
EMBO Rep ; 22(10): e53739, 2021 10 05.
Artigo em Inglês | MEDLINE | ID: mdl-34477287

RESUMO

The COVID-19 pandemic has rekindled debates about gain-of-function experiments. This is an opportunity to clearly define safety risks and appropriate countermeasures.


Assuntos
COVID-19 , Contenção de Riscos Biológicos , Mutação com Ganho de Função , Humanos , Pandemias , SARS-CoV-2
11.
Health Secur ; 18(6): 473-482, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33017195

RESUMO

Mass vaccination is a crucial public health intervention during outbreaks or pandemics for which vaccines are available. The US government has sponsored the development of medical countermeasures, including vaccines, for public health emergencies; however, federally supported programs, including the Public Health and Emergency Preparedness program and Cities Readiness Initiative, have historically emphasized antibiotic pill dispensing over mass vaccination. While mass vaccination and pill dispensing programs share similarities, they also have fundamental differences that require dedicated preparedness efforts to address. To date, only a limited number of public assessments of local mass vaccination operational capabilities have been conducted. To fill this gap, we interviewed 37 public health and preparedness officials representing 33 jurisdictions across the United States. We aimed to characterize their existing mass vaccination operational capacities and identify challenges and lessons learned in order to support the efforts of other jurisdictions to improve mass vaccination preparedness. We found that most jurisdictions were not capable of or had not planned for rapidly vaccinating their populations within a short period of time (eg, 1 to 2 weeks). Many also noted that their focus on pill dispensing was driven largely by federal funding requirements and that preparedness efforts for mass vaccination were often self-motivated. Barriers to implementing rapid mass vaccination operations included insufficient personnel qualified to administer vaccinations, increased patient load compared to pill-dispensing modalities, logistical challenges to maintaining cold chain, and operational challenges addressing high-risk populations, including children, pregnant women, and non-English-speaking populations. Considering the expected availability of a severe acute respiratory syndrome coronavirus 2 vaccine for distribution and dispensing to the public, our findings highlight critical considerations for planning possible future mass vaccination events, including during the novel coronavirus disease 2019 pandemic.


Assuntos
COVID-19 , Defesa Civil/tendências , Vacinação em Massa/tendências , Contramedidas Médicas , Saúde Pública , Populações Vulneráveis/etnologia , Planejamento em Desastres/tendências , Humanos , Vacinação em Massa/organização & administração , Vacinação
12.
BMJ Glob Health ; 5(10)2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-33033053

RESUMO

Infectious disease outbreaks pose major threats to human health and security. Countries with robust capacities for preventing, detecting and responding to outbreaks can avert many of the social, political, economic and health system costs of such crises. The Global Health Security Index (GHS Index)-the first comprehensive assessment and benchmarking of health security and related capabilities across 195 countries-recently found that no country is sufficiently prepared for epidemics or pandemics. The GHS Index can help health security stakeholders identify areas of weakness, as well as opportunities to collaborate across sectors, collectively strengthen health systems and achieve shared public health goals. Some scholars have recently offered constructive critiques of the GHS Index's approach to scoring and ranking countries; its weighting of select indicators; its emphasis on transparency; its focus on biosecurity and biosafety capacities; and divergence between select country scores and corresponding COVID-19-associated caseloads, morbidity, and mortality. Here, we (1) describe the practical value of the GHS Index; (2) present potential use cases to help policymakers and practitioners maximise the utility of the tool; (3) discuss the importance of scoring and ranking; (4) describe the robust methodology underpinning country scores and ranks; (5) highlight the GHS Index's emphasis on transparency and (6) articulate caveats for users wishing to use GHS Index data in health security research, policymaking and practice.


Assuntos
Saúde Global , Medidas de Segurança/organização & administração , Benchmarking/organização & administração , Betacoronavirus , COVID-19 , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/mortalidade , Infecções por Coronavirus/prevenção & controle , Humanos , Liderança , Pandemias/prevenção & controle , Pneumonia Viral/epidemiologia , Pneumonia Viral/mortalidade , Pneumonia Viral/prevenção & controle , SARS-CoV-2
13.
Health Secur ; 18(4): 303-309, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32816589

RESUMO

An important factor in growing the US bioeconomy is recruiting and training its future workforce. Other science, technology, engineering, and math (STEM) fields have relied on diverse educational opportunities for recruitment, including prestigious high school and collegiate competitions. For genetic engineering and synthetic biology, there are very few competitions; they include the Biodesign Competition and the much larger and scientifically focused International Genetically Engineered Machine (iGEM) competition. iGEM, run by an independent nonprofit organization, is often cited as a measure of progress in developing the synthetic biology workforce. Starting in 2021, iGEM will move its main competitive event, the "Giant Jamboree," from its long-standing home in Boston to Paris, which is likely to negatively affect participation by the US team. In this article, we describe the value of iGEM to the bioeconomy and its upcoming challenges through a review of available literature, observation of the iGEM Jamboree, and interviews with 10 US-based iGEM team coaches. The coaches expressed positive views about the iGEM process for their students in providing a hands-on biotechnology experience, but they were concerned about the funding US students received to participate in iGEM compared with teams from other countries. They were also concerned that the relocation to Paris would negatively affect or preclude their participation. Possible options to continue the benefits of experiential learning in synthetic biology are discussed, including alternative funding for iGEM teams through a grant process and the need for additional biology competitions.


Assuntos
Biotecnologia/educação , Engenharia Genética , Biologia Sintética/educação , Humanos , Estudantes , Estados Unidos , Recursos Humanos/tendências
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