Development of broadly reactive antibody therapeutics for SARS-CoV-2.

Various antibody therapeutics has been developed for the treatment and suppression of the 2019 outbreak of novel coronavirusSARS-CoV-2infection. A major limitation in the development DDS of SARS-CoV-2 neutralizing antibodies is the occurrence and spread of escape variants that have mutations in the spike glycoprotein. The coronaviruses are carried by various wild animals, domestic animals, and pets, and there have been cases of Severe acute respiratory syndrome coronavirus and Middle East respiratory syndrome coronavirus transmission from animals to people, resulting in a large spread of infection in people. There is also a possibility that cross-species transmission of SARS-CoV-2 may occur in the future. Considering these factors, the development of antibody therapeutics with broad cross-reactivity against SARS-CoV-2 variants and other coronaviruses is required.Copyright © 2022, Japan Society of Drug Delivery System. All rights reserved.

Development of broadly reactive antibody therapeutics for SARS-CoV-2.

Various antibody therapeutics has been developed for the treatment and suppression of the 2019 outbreak of novel coronavirus(SARS-CoV-2)infection. A major limitation in the development DDS of SARS-CoV-2 neutralizing antibodies is the occurrence and spread of escape variants that have mutations in the spike glycoprotein. The coronaviruses are carried by various wild animals, domestic animals, and pets, and there have been cases of Severe acute respiratory syndrome coronavirus and Middle East respiratory syndrome coronavirus transmission from animals to people, resulting in a large spread of infection in people. There is also a possibility that cross-species transmission of SARS-CoV-2 may occur in the future. Considering these factors, the development of antibody therapeutics with broad cross-reactivity against SARS-CoV-2 variants and other coronaviruses is required.Copyright © 2022, Japan Society of Drug Delivery System. All rights reserved.

Development of broadly reactive antibody therapeutics for SARS-CoV-2.

Various antibody therapeutics has been developed for the treatment and suppression of the 2019 outbreak of novel coronavirus(SARS-CoV-2)infection. A major limitation in the development DDS of SARS-CoV-2 neutralizing antibodies is the occurrence and spread of escape variants that have mutations in the spike glycoprotein. The coronaviruses are carried by various wild animals, domestic animals, and pets, and there have been cases of Severe acute respiratory syndrome coronavirus and Middle East respiratory syndrome coronavirus transmission from animals to people, resulting in a large spread of infection in people. There is also a possibility that cross-species transmission of SARS-CoV-2 may occur in the future. Considering these factors, the development of antibody therapeutics with broad cross-reactivity against SARS-CoV-2 variants and other coronaviruses is required.Copyright © 2022, Japan Society of Drug Delivery System. All rights reserved.

Animal Coronaviruses: A Brief Introduction

Coronaviruses (CoVs) are single-stranded positive-sense enveloped RNA viruses. Among RNA viruses, CoVs have the largest genome. CoVs infect diverse animal species including domestic and wild animals. In this chapter, we provide a brief review on animal CoVs by discussing their receptor, host specificity, reverse genetics, and emerging and re-emerging porcine CoVs. Copyright © Springer Science+Business Media New York 2016.

COVID-19 and zoonoses in Brazil: Environmental scan of one health preparedness and response.

The emergence of the COVID-19 pandemic reinforced the central role of the One Health (OH) approach, as a multisectoral and multidisciplinary perspective, to tackle health threats at the human-animal-environment interface. This study assessed Brazilian preparedness and response to COVID-19 and zoonoses with a focus on the OH approach and equity dimensions. We conducted an environmental scan using a protocol developed as part of a multi-country study. The article selection process resulted in 45 documents: 79 files and 112 references on OH; 41 files and 81 references on equity. The OH and equity aspects are poorly represented in the official documents regarding the COVID-19 response, either at the federal and state levels. Brazil has a governance infrastructure that allows for the response to infectious diseases, including zoonoses, as well as the fight against antimicrobial resistance through the OH approach. However, the response to the pandemic did not fully utilize the resources of the Brazilian state, due to the lack of central coordination and articulation among the sectors involved. Brazil is considered an area of high risk for emergence of zoonoses mainly due to climate change, large-scale deforestation and urbanization, high wildlife biodiversity, wide dry frontier, and poor control of wild animals' traffic. Therefore, encouraging existing mechanisms for collaboration across sectors and disciplines, with the inclusion of vulnerable populations, is required for making a multisectoral OH approach successful in the country.

THE EFFECT OF FOREST FIRES ON WILDLIFE AND HABITAT RESTORATION AFTER FIRE

Every year, forests are exposed to more fire risks with the effect of global climate change. The Covid-19 pandemic, which has been experienced in recent years, has changed the perspective of human beings towards nature, and the needs and demands of people living in cities to use nature have increased day by day. When these two elements come together, it is inevitable that the risk of fire will increase in fire-sensitive ecosystems. One of the living groups most affected by this situation is wild animals. In the burned areas, not only the tree communities but also the entire forest ecosystem has been damaged. In particular, wildlife is adversely affected by fires in the short term, and hundreds of wild animals die. Therefore, rehabilitation and restoration of forests after fire emerges as an element that should be planned together with wildlife in terms of the sustainability of forest ecosystems. For this reason, all burned areas should not be renewed with the same method and decision mechanism, and decisions specific to the wildlife and habitat should be taken.

Wild animal and zoonotic disease risk management and regulation in China: Examining gaps and One Health opportunities in scope, mandates, and monitoring systems.

Emerging diseases of zoonotic origin such as COVID-19 are a continuing public health threat in China that lead to a significant socioeconomic burden. This study reviewed the current laws and regulations, government reports and policy documents, and existing literature on zoonotic disease preparedness and prevention across the forestry, agriculture, and public health authorities in China, to articulate the current landscape of potential risks, existing mandates, and gaps. A total of 55 known zoonotic diseases (59 pathogens) are routinely monitored under a multi-sectoral system among humans and domestic and wild animals in China. These diseases have been detected in wild mammals, birds, reptiles, amphibians, and fish or other aquatic animals, the majority of which are transmitted between humans and animals via direct or indirect contact and vectors. However, this current monitoring system covers a limited scope of disease threats and animal host species, warranting expanded review for sources of disease and pathogen with zoonotic potential. In addition, the governance of wild animal protection and utilization and limited knowledge about wild animal trade value chains present challenges for zoonotic disease risk assessment and monitoring, and affect the completeness of mandates and enforcement. A coordinated and collaborative mechanism among different departments is required for the effective monitoring and management of disease emergence and transmission risks in the animal value chains. Moreover, pathogen surveillance among wild animal hosts and human populations outside of the routine monitoring system will fill the data gaps and improve our understanding of future emerging zoonotic threats to achieve disease prevention. The findings and recommendations will advance One Health collaboration across government and non-government stakeholders to optimize monitoring and surveillance, risk management, and emergency responses to known and novel zoonotic threats, and support COVID-19 recovery efforts.

Domestication of wild animals may provide a springboard for rapid variation of coronavirus.

Coronaviruses have spread widely among humans and other animals, but not all coronaviruses carried by specific animals can directly infect other kinds of animals. Viruses from most animal hosts need an intermediate host before they can spread widely among humans. Under natural conditions, coronaviruses do not rapidly change from infecting wild animals as intermediate hosts and to spreading widely among humans. The intermediate host might be the animals captured or bred for the purpose of cross-breeding with domesticated species for improvement of the breed. These animals differ from wild animals at the environmental and genetic levels. It is an important direction to study the semi-wild animals domesticated by humans in search for intermediate hosts of viruses widely spread among humans.

Legislation advancement of one health in China in the context of the COVID-19 pandemic: From the perspective of the wild animal conservation law.

The outbreak of COVID-19 epidemic is endangering the health of all humans and requires the urgent attention and active response of all countries and all areas of society. Existing studies have shown that wild animals are one of the sources of high-risk virus infection affecting human health, and human activities have largely shaped the routes of virus transmission. To protect wildlife is to protect human health. We should follow the concept of One Health to make corresponding legislation, so as to better coordinate the relationship among human health, animal health and environmental health. Since the outbreak of COVID-19 epidemic, China has taken many effective measures to prevent its spreading, including revision of the Wild Animal Conservation Law. All sectors of the Chinese society have issued a strong appeal to pursue One Health and even specific legislative proposals. Because the current Wild Animal Conservation Law fails to properly reflect the concept of One Health, which is the root cause of the imperfect design of the system and the key to the unsatisfactory effectiveness of the legal application. China's new Wild Animal Conservation Law is expected to make a large-scale and systematic revision, which should fully implement the concept of One Health.

Market characteristics and zoonotic disease risk perception in Cameroon bushmeat markets.

Behavioral practices are one of the key factors facilitating zoonotic disease transmission, especially in individuals who have frequent contact with wild animals, yet practices of those who work and live in high-risk animal-human interfaces, such as wild animal 'bushmeat' markets in the Congo Basin are not well documented in the social, health and medical sciences. This region, where hunting, butchering, and consumption of wild animal meat is frequent, represents a hotspot for disease emergence, and has experienced zoonotic disease spillover events, traced back to close human-animal contact with bats and non-human primates. Using a One Health approach, we conducted wildlife surveillance, human behavioral research, and concurrent human and animal biological sampling to identify and characterize factors associated with zoonotic disease emergence and transmission. Research was conducted through the USAID Emerging Pandemic Threats program between 2010 and 2019 including qualitative studies of bushmeat markets, with selected study sites prioritized based on proximity to bushmeat markets. Sites included two hospitals where we conducted surveillance of individuals with syndromes of acute febrile illness, community sites where we enrolled actors of the animal value chain (ie. hunters, middlemen, transporters), and bushmeat markets, where we enrolled bushmeat vendors, butchers, market managers, cleaners, and shoppers. Mixed methods research was undertaken at these sites and included investigation of bushmeat market dynamics through observational research, focus group discussions, quantitative questionnaires, and interviews. Participants were asked about their risk perception of zoonotic disease transmission and specific activities related to bushmeat trade, local market conditions, and regulations on bushmeat trade in Cameroon. Risks associated with blood contact and animal infection were not well understood by most market actors. As bushmeat markets are an important disease interface, as seen with CoVID19, risk mitigation measures in markets and bushmeat alternative strategies are discussed.