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Publications

Our publications keep professionals informed on the most important developments and issues in health security and biosecurity.

Showing 141 - 160 of 470 results

Safety and security concerns regarding transmissible vaccines

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Nature Ecology & Evolution
Publication Type
Letter

Nuismer and Bull1 argue for the development of self-disseminating vaccines for cost-effective immunization of animal reservoirs to prevent zoonotic spillovers. The authors suggest two approaches: ‘transferable’ vaccines, non-contagious vaccines applied to animals and spread through behaviour such as grooming, and ‘transmissible’ vaccines, replication-competent virally vectored vaccines with potential for indefinite transmission across populations.

Authors
Jonas B. Sandbrink
Matthew Watson
Andrew M. Hebbeler
Kevin M. Esvelt

Identification and evaluation of epidemic prediction and forecasting reporting guidelines: A systematic review and a call for action

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Epidemics
Publication Type
Article

High quality epidemic forecasting and prediction are critical to support response to local, regional and global infectious disease threats. Other fields of biomedical research use consensus reporting guidelines to ensure standardization and quality of research practice among researchers, and to provide a framework for end-users to interpret the validity of study results. The purpose of this study was to determine whether guidelines exist specifically for epidemic forecast and prediction publications.

Authors
Simon Pollett
Michael A. Johansson
Matthew Biggerstaff
Lindsay C. Morton
Sara L. Bazacod
David Brett-Major
Cecile Viboud
et al.

The opportunities and challenges of an Ebola modeling research coordination group

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PLOS Neglected Tropical Diseases
Publication Type
Commentary

In response to the protracted Ebola virus outbreak in the Democratic Republic of Congo, the international public health community called for increased attention, coordination, and resources to support the response. The use of real-time modeling and analytics to support public health decision-making (also known as “outbreak science”) has been an important capability that has grown during previous outbreaks [1–3]. Despite the informative role that infectious disease models played in the recent DRC outbreak [4–7], cross-talk within the infectious disease modeling community and between infectious disease modelers and model stakeholders, such as health agencies, may be limited. Lack of communication can reduce the potential use of modeling capability to inform outbreak prevention and mitigation strategies. For example, mathematical modelers may not be aware of questions that would be particularly useful for guiding the response, such as the location and staffing of Ebola treatment units. On the other end, public health teams may not be aware of outbreak features that may signal improvement or worsening of incidence or increased potential for spatial spread.

Authors
Simon Pollett
Cecile Viboud

Social Media and the New World of Scientific Communication During the COVID-19 Pandemic

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Clinical Infectious Diseases
Publication Type
Commentary

The human and social toll of the coronavirus disease 2019 (COVID-19) pandemic has already spurred several major public health “lessons learned,” and the theme of effective and responsible scientific communication is among them. We propose that Twitter has played a fundamental—but often precarious—role in permitting real-time global communication between scientists during the COVID-19 epidemic, on a scale not seen before. Here, we discuss 3 key facets to Twitter-enabled scientific exchange during public health emergencies, including some major drawbacks. This discussion also serves as a succinct primer on some of the pivotal epidemiological analyses (and their communication) during the early phases of the COVID-19 outbreak, as seen through the lens of a Twitter feed.

Authors
Simon Pollett

A risk-based approach is best for decision making on holding mass gathering events

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Lancet. 2020 Apr 18;395(10232):1256-1257
Publication Type
Letter

Memish and colleagues,1in their response to our Comment,2 perceive conflict between the current best-practice risk management advice on physical distancing and the scientific evaluation of cancelling or continuing mass gathering events during the coronavirus disease 2019 (COVID-19) pandemic. Although we have already acknowledged the need to balance these two considerations in order to maintain public understanding and trust, we do not accept that conflict is inevitable as our approach requires all mass gatherings to be considered in context, including the prevailing advice on physical distancing and movement restrictions. An open and transparent process to explicitly consider the risks of a mass gathering can, in fact, promote public confidence in the decision.

Authors
Brian McCloskey
Alimuddin Zumla
Poh Lian Lim
Tina Endericks
Paul Arbon
et al.

Current State of Mass Vaccination Preparedness and Operational Challenges in the United States, 2018-2019

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Health Security
Publication Type
Article

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.

Authors
Divya Hosangadi
Lane Warmbrod
Lilly Kan
Michelle Cantu

A Public Health Systems View of Risk Communication About Zika

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Public Health Reports
Publication Type
Article

The spread of Zika virus throughout Latin America and parts of the United States in 2016 and 2017 presented a challenge to public health communicators. The objective of our study was to describe emergency risk communication practices during the 2016-2017 Zika outbreak to inform future infectious disease communication efforts.

Authors
Laura E. Pechta
Dale A. Rose
Keri M. Lubell
Michelle N. Podgornik
School Ventilation: A Vital Tool to Reduce COVID-19 Spread | report cover

School Ventilation: A Vital Tool to Reduce COVID-19 Spread

Publication Type
Report

Many kindergarten through 12th grade (K-12) schools in the United States do not have good ventilation. This is a longstanding problem with demonstrably negative effects on student learning. We can and should act to fix this to ensure good indoor air quality for all students, educators, and school staff. During the COVID-19 pandemic, it is even more important that ventilation problems in K-12 schools be addressed now. Along with other mitigation measures, improvements in ventilation in K-12 schools can decrease the risk of SARS-CoV-2 spread.

Authors

Operational Recommendations for Scarce Resource Allocation in a Public Health Crisis

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Chest
Publication Type
Article

The coronavirus disease 2019 pandemic may require rationing of various medical resources if demand exceeds supply. Theoretical frameworks for resource allocation have provided much needed ethical guidance, but hospitals still need to address objective practicalities and legal vetting to operationalize scarce resource allocation schemata. To develop operational scarce resource allocation processes for public health catastrophes, including the coronavirus disease 2019 pandemic, five health systems in Maryland formed a consortium—with diverse expertise and representation—representing more than half of all hospitals in the state. Our efforts built on a prior statewide community engagement process that determined the values and moral reference points of citizens and health-care professionals regarding the allocation of ventilators during a public health catastrophe. Through a partnership of health systems, we developed a scarce resource allocation framework informed by citizens’ values and by general expert consensus. Allocation schema for mechanical ventilators, ICU resources, blood components, novel therapeutics, extracorporeal membrane oxygenation, and renal replacement therapies were developed. Creating operational algorithms for each resource posed unique challenges; each resource’s varying nature and underlying data on benefit prevented any single algorithm from being universally applicable. The development of scarce resource allocation processes must be iterative, legally vetted, and tested. We offer our processes to assist other regions that may be faced with the challenge of rationing health-care resources during public health catastrophes.

Authors
Michael R. Ehmann
Elizabeth K. Zink
Amanda B. Levin
Jose I. Suarez
Elizabeth L Daugherty-Biddison
et al.
CommuniVax Implementation Toolkit

CommuniVax Implementation Toolkit

Publication Type
Report

The CommuniVax Implementation Toolkit is a guide to help state and local jurisdictions set health equity efforts rapidly in motion, starting with a COVID-19 vaccination campaign that delivers systemic benefits to communities of Black, Indigenous, and People of Color (BIPOC). The toolkit is a product of CommuniVax, a coalition of community advocates, health experts, social scientists, and public sector leaders working together to strengthen state and local COVID-19 vaccination campaigns.

Authors
Arrietta Chakos
Madison Taylor
Ray Bonilla
on behalf of the CommuniVax Coalition

Health systems for health security – Strengthening prevention, preparedness and response to health emergencies

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Weekly epidemiological record
Publication Type
Article

Continuing outbreaks, disasters and active conflict are all evidence that the world remains vulnerable to health emer-gencies with significant health, social, economic and political impacts.1 During the COVID-19 pandemic, even countries considered to have strong health security and strong health systems, as measured by conventional metrics, are struggling to provide routine essential health services. The costs related to the pandemic continue to accumulate, and the world has witnessed excess morbidity and mortality from non-COVID-19 conditions. On stimulus pack-ages alone, countries have spent US$ 15 trillion to mitigate the economic and opportunity costs and reduce the impacts on lives and livelihoods.2

Authors
Stella Chungong
Luc B Tsachoua Choupe
Marc Z. J. Ho
Garrett W. Brown
Nirmal Kandela

Antibody (Serology) Tests for COVID-19: a Case Study

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mSphere
Publication Type
Article

Serology (antibody) tests to detect previous SARS-CoV-2 infection have been in high demand from the beginning of the COVID-19 pandemic. The initial shortage of diagnostic tests coupled with asymptomatic infections led to a significant demand for serology tests to identify past infections. Despite serious limitations on the interpretation of a positive antibody test in terms of immunity to SARS-CoV-2, antibody testing was initially considered for release from social distancing, return to employment, and “immunity passports.” The regulatory approach to antibody tests was limited; manufacturers were encouraged to develop and market antibody tests without submitting validation data to the FDA. FDA guidance grew more stringent, but many poor-quality tests were already on the market—potentially inappropriately used for individual decision-making. This is a case study describing COVID-19 serology tests and the U.S. market and describes lessons learned for a future health security crisis.

Authors
Rachel West
Nancy Connell

Critical Capability Needs for Reduction of Transmission of SARS-CoV-2 Indoors

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Frontiers in Bioengineering and Biotechnology
Publication Type
Article

Coordination of efforts to assess the challenges and pain points felt by industries from around the globe working to reduce COVID-19 transmission in the indoor environment as well as innovative solutions applied to meet these challenges is mandatory. Indoor infectious viral disease transmission (such as coronavirus, norovirus, influenza) is a complex problem that needs better integration of knowledge. Critical to providing a reduction in transmission is to map the four core technical areas of environmental microbiology, transmission science, building science, and social science. To that end a three-stage science and innovation Summit was held to gather information on current standards, policies and procedures applied to reduce transmission in built spaces, as well as the technical challenges, science needs, and research priorities. The Summit elucidated steps than can be taken to reduce transmission of SARS-CoV-2 indoors and calls for significant investments in research to develop knowledge of viral pathogen persistence and transport in the built environment, risk assessment and mitigation strategy considerations including such as processes and procedures to reduce the risk of exposure and infection including building systems operations, biosurveillance capacity, communication, leadership, and stakeholder engagement for optimal response. The findings reflect the effective application of existing knowledge and standards, emerging science, and lessons-learned from current efforts to confront SARS-CoV-2.

Authors
Jayne B. Morrow
Aaron Packman
Kenneth Martinez
Kevin Van Den Wymelenberg
Darla M. Goeres
Delphine Farmer
Jade Mitchell
Lisa Ng
Yair Hazi
Sandra C. Quinn
William P. Bahnfleth

Lives and Costs Saved by Expanding and Expediting COVID-19 Vaccination

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The Journal of Infectious Diseases
Publication Type
Article

With multiple COVID-19 vaccines available, understanding the epidemiologic, clinical, and economic value of increasing coverage levels and expediting vaccination is important.

Authors
Sarah M. Bartsch
Patrick T. Wedlock
Kelly J. O’Shea
Sarah N. Cox
lrich Strych
Marie C. Ferguson
Maria Elena Bottazzi
Sheryl S. Siegmund
Peter J. Hotez
Bruce Y. Lee

Utility of Rapid Antigen Tests in Nursing Homes

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Annals of Internal Medicine
Publication Type
Editorial

Few populations have experienced greater harms during the COVID-19 pandemic than residents of nursing homes. Before the introduction of SARS-CoV-2 vaccines, nursing homes accounted for just over 5% of all U.S. COVID-19 cases but represented more than a third of all deaths1. Not all nursing home facilities have been equally affected; an analysis found that death rates were more than 3 times higher in facilities with the highest proportions of non-White residents than in facilities with the highest proportions of White residents2.

Risk and the Republican National Convention: Application of the Novel COVID-19 Operational Risk Assessment

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Disaster Medicine and Public Health Preparedness
Publication Type
Article

The United States Centers for Disease Control and Prevention and the World Health Organization broadly categorize mass gathering events as high risk for amplification of coronavirus disease 2019 (COVID-19) spread in a community due to the nature of respiratory diseases and the transmission dynamics. However, various measures and modifications can be put in place to limit or reduce the risk of further spread of COVID-19 for the mass gathering. During this pandemic, the Johns Hopkins University Center for Health Security produced a risk assessment and mitigation tool for decision-makers to assess SARS-CoV-2 transmission risks that may arise as organizations and businesses hold mass gatherings or increase business operations: The JHU Operational Toolkit for Businesses Considering Reopening or Expanding Operations in COVID-19 (Toolkit). This article describes the deployment of a data-informed, risk-reduction strategy that protects local communities, preserves local health-care capacity, and supports democratic processes through the safe execution of the Republican National Convention in Charlotte, North Carolina. The successful use of the Toolkit and the lessons learned from this experience are applicable in a wide range of public health settings, including school reopening, expansion of public services, and even resumption of health-care delivery.

Authors
David Callaway
Jeff Runge
Lisa Rentz
Kevin Staley
Michael Stanford
Cover: National Priorities to Combat Misinformation and Disinformation for COVID-19 and Future Public Health Threats: A Call for a National Strategy

National Priorities to Combat Misinformation and Disinformation for COVID-19 and Future Public Health Threats: A Call for a National Strategy

Publication Type
Report

The COVID-19 pandemic has shown that health-related misinformation and disinformation can dangerously undermine the response to a public health crisis. Contradictory messaging and active subversion have reduced trust in public health responders, increased belief in false medical cures, and politicized public health measures aimed at curbing transmission of the disease. Setbacks in the COVID-19 response have highlighted that health-related misinformation or disinformation can lead to more infections, deaths, disruption, and disorganization of the effort. The public health response and communication environment in the United States have been disrupted by significant distrust in government, exacerbated by confusing and conflicting messages from leaders. As a result, information voids have developed, easily filled by false or misleading information and directly targeted by perpetrators of disinformation. Taken together, the spread and consequence of public health misinformation and disinformation can lead to a range of outcomes that have national security implications and require effective response.

Authors
Divya Hosangadi
Elizabeth Smith
Marc Trotochaud
Prarthana Vasudevan
Yonaira Rivera
Jeannette Sutton
Alex Ruiz

Anthropological foundations of public health; the case of COVID 19

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Preventive Medicine Reports
Publication Type
Article

The complex societal spread of COVID-19 in the U.S. indicates a need to recognize sociocultural forces to best understand and respond to the pandemic. This essay describes four principles of anthropology and sister disciplines that underlie the theory and practice of public health.

Authors
Robert A. Hahn

United States–India Strategic Dialogue on Biosecurity - Report from the Seventh Dialogue Session, Focused on COVID-19 Responses in India and the United States: Lessons Learned and Path Forward

Publication Type
Meeting Report

On January 26 and 27, 2021, the Johns Hopkins Center for Health Security hosted a virtual dialogue discussion, focused on coronavirus disease 2019 (COVID-19) responses in India and the United States. The session explored lessons learned thus far and the path forward for both nations in responding to the pandemic. The meeting was held in collaboration with the Regional Centre for Biotechnology of the Department of Biotechnology in the Indian Ministry of Science and Technology.

Authors
Marc Trotochaud
Divya Hosangadi

Four Steps to Building the Public Health System Needed to Cope With the Next Pandemic

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Journal of Public Health Management and Practice
Publication Type
Commentary

COVID-19 has revealed what many public health practitioners have known for some time: our nation's disjointed and underfunded public health system lacks the ability to mount a coordinated response against novel epidemic threats. Our failure to invest in our nation's state and local governmental public health infrastructure, as well as key federal programs, risks a large loss of life from future infectious disease threats, and during crises, jeopardizes the economy and the normal functioning of society.

Authors
Brian Castrucci
Chrissie Juliano