Background:The monkey pox virus is caused by monkey pox(MPX),which is similar to both smallpox and cowpox.Near tropical rain forests,it usually occurs in isolated communities in Central and West Africa.The monkey pox ...Background:The monkey pox virus is caused by monkey pox(MPX),which is similar to both smallpox and cowpox.Near tropical rain forests,it usually occurs in isolated communities in Central and West Africa.The monkey pox virus,a member of the family Poxviridae and belongs to the genus Orthopoxvirus.Close contact with infected animals,sick people,or contaminated inanimate things can cause the virus to spread to humans.The illness typically takes 7 to 14 days to incubate and is characterized by fever,headache,lethargy,myalgia,generalized body pains,lymph node swelling,and skin lesions.Given the variety of illnesses that can result in skin rashes,it could be challenging to differentiate monkey pox solely based on clinical presentation,particularly for patients with an uncommon look.Objective:The main objective of the study is to evaluate public perceptions regarding the emerging human monkey pox disease and vaccination.Methods:The study was conducted using a cross-sectional study design.The sample size was 472 participants;however,10 questionnaires were excluded because of invalid data.The 462 questionnaires were included by expert validation from the general public of Rawalpindi and Islamabad,Pakistan.The data were analyzed using Chi-squared tests.Results:This questionnaire-based cross-sectional study was conducted from 15 Sep to 15 Oct 2022.The participants’perceptions,knowledge,and attitudes were collected via a 24-item-based questionnaire survey.The survey was based on 462 participants,196(42.4%)were females,and 266(57.6%)were males.The results reveal that out of 462 participants,clinical symptoms of monkey pox disease 82.7%(382),complications of monkey pox disease 81.2%(375),lymphadenopathy(swollen lymph nodes)is one clinical feature that could be used to differentiate between monkey pox and smallpox 81.2%(375)and monkey pox is common in Western and Central Africa 24.2%(112).Furthermore,the majority of participants(P≤0.05)agreed that health officials should start a vaccination campaign to combat monkey pox.Regarding preventive measures and vaccination campaigns,health officials should take public preventive measures 79.7%(368)and health officials start a vaccination campaign against monkey pox disease 56.3%(260).Conclusion:There was a significant difference seen in the public perception regarding monkey pox preventive measures and vaccination.The International health authorities must take priority-based preventative measures to prevent the spread of monkey pox disease around the world.展开更多
The coronavirus disease 2019(COVID-19)and concerns about several other pandemics in the 21st century have attracted extensive global attention.These emerging infectious diseases threaten global public health and raise...The coronavirus disease 2019(COVID-19)and concerns about several other pandemics in the 21st century have attracted extensive global attention.These emerging infectious diseases threaten global public health and raise urgent studies on unraveling the underlying mechanisms of their transmission from animals to humans.Although numerous works have intensively discussed the cross-species and endemic barriers to the occurrence and spread of emerging infectious diseases,both types of barriers play synergistic roles in wildlife habitats.Thus far,there is still a lack of a complete understanding of viral diffusion,migration,and transmission in ecosystems from a macro perspective.In this review,we conceptualize the ecological barrier that represents the combined effects of cross-species and endemic barriers for either the natural or intermediate hosts of viruses.We comprehensively discuss the key influential factors affecting the ecological barrier against viral transmission from virus hosts in their natural habitats into human society,including transmission routes,contact probability,contact frequency,and viral characteristics.Considering the significant impacts of human activities and global industrialization on the strength of the ecological barrier,ecological barrier deterioration driven by human activities is critically analyzed for potential mechanisms.Global climate change can trigger and expand the range of emerging infectious diseases,and human disturbances promote higher contact frequency and greater transmission possibility.In addition,globalization drives more transmission routes and produces new high-risk regions in city areas.This review aims to provide a new concept for and comprehensive evidence of the ecological barrier blocking the transmission and spread of emerging infectious diseases.It also offers new insights into potential strategies to protect the ecological barrier and reduce the wide-ranging risks of emerging infectious diseases to public health.展开更多
In recent years,the risk of acute emerging infectious diseases has increased significantly due to changes in environmental conditions and social factors,posing a serious threat to public health security and human heal...In recent years,the risk of acute emerging infectious diseases has increased significantly due to changes in environmental conditions and social factors,posing a serious threat to public health security and human health.The general susceptibility of the population and the unpredictability and increasing infectiousness of emerging infectious diseases reflect the inadequacy of the existing infectious disease surveillance system for timely detection and screening of emerging infectious diseases,often leading to a certain scale of epidemic outbreaks that seriously harm humans before being detected passively.This is a literature review on symptom surveillance of acute emerging infectious diseases at home and abroad,emphasizing on the subject matter and development of symptom surveillance of emerging infectious diseases,so as to provide a scientific basis for the establishment and improvement of symptom surveillance of acute emerging infectious diseases.展开更多
The coronavirus disease 2019 (COVID-19) pandemic has dramatically increased the awareness of emerging infectious diseases. The advancement of multiomics analysis technology has resulted in the development of several d...The coronavirus disease 2019 (COVID-19) pandemic has dramatically increased the awareness of emerging infectious diseases. The advancement of multiomics analysis technology has resulted in the development of several databases containing virus information. Several scientists have integrated existing data on viruses to construct phylogenetic trees and predict virus mutation and transmission in different ways, providing prospective technical support for epidemic prevention and control. This review summarized the databases of known emerging infectious viruses and techniques focusing on virus variant forecasting and early warning. It focuses on the multi-dimensional information integration and database construction of emerging infectious viruses, virus mutation spectrum construction and variant forecast model, analysis of the affinity between mutation antigen and the receptor, propagation model of virus dynamic evolution, and monitoring and early warning for variants. As people have suffered from COVID-19 and repeated flu outbreaks, we focused on the research results of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and influenza viruses. This review comprehensively viewed the latest virus research and provided a reference for future virus prevention and control research.展开更多
There is growing concern in Sub-Saharan Africa about the spread of the Ebola virus disease(EVD),formerly known as Ebola haemorrhagic fever,and the public health burden that it ensues.Since 1976,there have been 885,343...There is growing concern in Sub-Saharan Africa about the spread of the Ebola virus disease(EVD),formerly known as Ebola haemorrhagic fever,and the public health burden that it ensues.Since 1976,there have been 885,343 suspected and laboratory confirmed cases of EVD and the disease has claimed 2,512 cases and 932 fatality in West Africa.There are certain requirements that must be met when responding to EVD outbreaks and this process could incur certain challenges.For the purposes of this paper,five have been identified:(i)the deficiency in the development and implementation of surveillance response systems against Ebola and others infectious disease outbreaks in Africa;(ii)the lack of education and knowledge resulting in an EVD outbreak triggering panic,anxiety,psychosocial trauma,isolation and dignity impounding,stigmatisation,community ostracism and resistance to associated socio-ecological and public health consequences;(iii)limited financial resources,human technical capacity and weak community and national health system operational plans for prevention and control responses,practices and management;(iv)inadequate leadership and coordination;and(v)the lack of development of new strategies,tools and approaches,such as improved diagnostics and novel therapies including vaccines which can assist in preventing,controlling and containing Ebola outbreaks as well as the spread of the disease.Hence,there is an urgent need to develop and implement an active early warning alert and surveillance response system for outbreak response and control of emerging infectious diseases.Understanding the unending risks of transmission dynamics and resurgence is essential in implementing rapid effective response interventions tailored to specific local settings and contexts.Therefore,the following actions are recommended:(i)national and regional inter-sectorial and trans-disciplinary surveillance response systems that include early warnings,as well as critical human resources development,must be quickly adopted by allied ministries and organisations in African countries in epidemic and pandemic responses;(ii)harnessing all stakeholders commitment and advocacy in sustained funding,collaboration,communication and networking including community participation to enhance a coordinated responses,as well as tracking and prompt case management to combat challenges;(iii)more research and development in new drug discovery and vaccines;and(iv)understanding the involvement of global health to promote the establishment of public health surveillance response systems with functions of early warning,as well as monitoring and evaluation in upholding research-action programmes and innovative interventions.展开更多
Emerging infectious diseases are major threats to human health.Most severe viral disease outbreaks occur in developing regions where health conditions are poor.With increased international travel and business,the poss...Emerging infectious diseases are major threats to human health.Most severe viral disease outbreaks occur in developing regions where health conditions are poor.With increased international travel and business,the possibility of eventually transmitting infectious viruses between different countries is increasing.The most effective approach in preventing viral diseases is vaccination.However,vaccines are not currently available for numerous viral diseases.Viruslike particles(VLPs) are engineered vaccine candidates that have been studied for decades.VLPs are constructed by viral protein expression in various expression systems that promote the selfassembly of proteins into structures resembling virus particles.VLPs have antigenicity similar to that of the native virus,but are non-infectious as they lack key viral genetic material.VLP vaccines have attracted considerable research interest because they offer several advantages over traditional vaccines.Studies have shown that VLP vaccines can stimulate both humoral and cellular immune responses,which may offer effective antiviral protection.Here we review recent developments with VLP-based vaccines for several highly virulent emerging or re-emerging infectious diseases.The infectious agents discussed include RNA viruses from different virus families,such as the Arenaviridae,Bunyaviridae,Caliciviridae,Coronaviridae,Filoviridae,Flaviviridae,Orthomyxoviridae,Paramyxoviridae,and Togaviridae families.展开更多
文摘Background:The monkey pox virus is caused by monkey pox(MPX),which is similar to both smallpox and cowpox.Near tropical rain forests,it usually occurs in isolated communities in Central and West Africa.The monkey pox virus,a member of the family Poxviridae and belongs to the genus Orthopoxvirus.Close contact with infected animals,sick people,or contaminated inanimate things can cause the virus to spread to humans.The illness typically takes 7 to 14 days to incubate and is characterized by fever,headache,lethargy,myalgia,generalized body pains,lymph node swelling,and skin lesions.Given the variety of illnesses that can result in skin rashes,it could be challenging to differentiate monkey pox solely based on clinical presentation,particularly for patients with an uncommon look.Objective:The main objective of the study is to evaluate public perceptions regarding the emerging human monkey pox disease and vaccination.Methods:The study was conducted using a cross-sectional study design.The sample size was 472 participants;however,10 questionnaires were excluded because of invalid data.The 462 questionnaires were included by expert validation from the general public of Rawalpindi and Islamabad,Pakistan.The data were analyzed using Chi-squared tests.Results:This questionnaire-based cross-sectional study was conducted from 15 Sep to 15 Oct 2022.The participants’perceptions,knowledge,and attitudes were collected via a 24-item-based questionnaire survey.The survey was based on 462 participants,196(42.4%)were females,and 266(57.6%)were males.The results reveal that out of 462 participants,clinical symptoms of monkey pox disease 82.7%(382),complications of monkey pox disease 81.2%(375),lymphadenopathy(swollen lymph nodes)is one clinical feature that could be used to differentiate between monkey pox and smallpox 81.2%(375)and monkey pox is common in Western and Central Africa 24.2%(112).Furthermore,the majority of participants(P≤0.05)agreed that health officials should start a vaccination campaign to combat monkey pox.Regarding preventive measures and vaccination campaigns,health officials should take public preventive measures 79.7%(368)and health officials start a vaccination campaign against monkey pox disease 56.3%(260).Conclusion:There was a significant difference seen in the public perception regarding monkey pox preventive measures and vaccination.The International health authorities must take priority-based preventative measures to prevent the spread of monkey pox disease around the world.
基金the Major Program of National Natural Science Foundation of China(52091543)the Chinese Academy of Engineering(2020-ZD15)for the financial support of this work。
文摘The coronavirus disease 2019(COVID-19)and concerns about several other pandemics in the 21st century have attracted extensive global attention.These emerging infectious diseases threaten global public health and raise urgent studies on unraveling the underlying mechanisms of their transmission from animals to humans.Although numerous works have intensively discussed the cross-species and endemic barriers to the occurrence and spread of emerging infectious diseases,both types of barriers play synergistic roles in wildlife habitats.Thus far,there is still a lack of a complete understanding of viral diffusion,migration,and transmission in ecosystems from a macro perspective.In this review,we conceptualize the ecological barrier that represents the combined effects of cross-species and endemic barriers for either the natural or intermediate hosts of viruses.We comprehensively discuss the key influential factors affecting the ecological barrier against viral transmission from virus hosts in their natural habitats into human society,including transmission routes,contact probability,contact frequency,and viral characteristics.Considering the significant impacts of human activities and global industrialization on the strength of the ecological barrier,ecological barrier deterioration driven by human activities is critically analyzed for potential mechanisms.Global climate change can trigger and expand the range of emerging infectious diseases,and human disturbances promote higher contact frequency and greater transmission possibility.In addition,globalization drives more transmission routes and produces new high-risk regions in city areas.This review aims to provide a new concept for and comprehensive evidence of the ecological barrier blocking the transmission and spread of emerging infectious diseases.It also offers new insights into potential strategies to protect the ecological barrier and reduce the wide-ranging risks of emerging infectious diseases to public health.
文摘In recent years,the risk of acute emerging infectious diseases has increased significantly due to changes in environmental conditions and social factors,posing a serious threat to public health security and human health.The general susceptibility of the population and the unpredictability and increasing infectiousness of emerging infectious diseases reflect the inadequacy of the existing infectious disease surveillance system for timely detection and screening of emerging infectious diseases,often leading to a certain scale of epidemic outbreaks that seriously harm humans before being detected passively.This is a literature review on symptom surveillance of acute emerging infectious diseases at home and abroad,emphasizing on the subject matter and development of symptom surveillance of emerging infectious diseases,so as to provide a scientific basis for the establishment and improvement of symptom surveillance of acute emerging infectious diseases.
基金supported by the National Key R&D Program of China(2022YFF1203202,2018YFC2000205)the Strategic Priority Research Program of the Chinese Academy of Sciences(XDB38050200,XDA26040304)the Self-supporting Program of Guangzhou Laboratory(SRPG22-007).
文摘The coronavirus disease 2019 (COVID-19) pandemic has dramatically increased the awareness of emerging infectious diseases. The advancement of multiomics analysis technology has resulted in the development of several databases containing virus information. Several scientists have integrated existing data on viruses to construct phylogenetic trees and predict virus mutation and transmission in different ways, providing prospective technical support for epidemic prevention and control. This review summarized the databases of known emerging infectious viruses and techniques focusing on virus variant forecasting and early warning. It focuses on the multi-dimensional information integration and database construction of emerging infectious viruses, virus mutation spectrum construction and variant forecast model, analysis of the affinity between mutation antigen and the receptor, propagation model of virus dynamic evolution, and monitoring and early warning for variants. As people have suffered from COVID-19 and repeated flu outbreaks, we focused on the research results of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and influenza viruses. This review comprehensively viewed the latest virus research and provided a reference for future virus prevention and control research.
文摘There is growing concern in Sub-Saharan Africa about the spread of the Ebola virus disease(EVD),formerly known as Ebola haemorrhagic fever,and the public health burden that it ensues.Since 1976,there have been 885,343 suspected and laboratory confirmed cases of EVD and the disease has claimed 2,512 cases and 932 fatality in West Africa.There are certain requirements that must be met when responding to EVD outbreaks and this process could incur certain challenges.For the purposes of this paper,five have been identified:(i)the deficiency in the development and implementation of surveillance response systems against Ebola and others infectious disease outbreaks in Africa;(ii)the lack of education and knowledge resulting in an EVD outbreak triggering panic,anxiety,psychosocial trauma,isolation and dignity impounding,stigmatisation,community ostracism and resistance to associated socio-ecological and public health consequences;(iii)limited financial resources,human technical capacity and weak community and national health system operational plans for prevention and control responses,practices and management;(iv)inadequate leadership and coordination;and(v)the lack of development of new strategies,tools and approaches,such as improved diagnostics and novel therapies including vaccines which can assist in preventing,controlling and containing Ebola outbreaks as well as the spread of the disease.Hence,there is an urgent need to develop and implement an active early warning alert and surveillance response system for outbreak response and control of emerging infectious diseases.Understanding the unending risks of transmission dynamics and resurgence is essential in implementing rapid effective response interventions tailored to specific local settings and contexts.Therefore,the following actions are recommended:(i)national and regional inter-sectorial and trans-disciplinary surveillance response systems that include early warnings,as well as critical human resources development,must be quickly adopted by allied ministries and organisations in African countries in epidemic and pandemic responses;(ii)harnessing all stakeholders commitment and advocacy in sustained funding,collaboration,communication and networking including community participation to enhance a coordinated responses,as well as tracking and prompt case management to combat challenges;(iii)more research and development in new drug discovery and vaccines;and(iv)understanding the involvement of global health to promote the establishment of public health surveillance response systems with functions of early warning,as well as monitoring and evaluation in upholding research-action programmes and innovative interventions.
文摘Emerging infectious diseases are major threats to human health.Most severe viral disease outbreaks occur in developing regions where health conditions are poor.With increased international travel and business,the possibility of eventually transmitting infectious viruses between different countries is increasing.The most effective approach in preventing viral diseases is vaccination.However,vaccines are not currently available for numerous viral diseases.Viruslike particles(VLPs) are engineered vaccine candidates that have been studied for decades.VLPs are constructed by viral protein expression in various expression systems that promote the selfassembly of proteins into structures resembling virus particles.VLPs have antigenicity similar to that of the native virus,but are non-infectious as they lack key viral genetic material.VLP vaccines have attracted considerable research interest because they offer several advantages over traditional vaccines.Studies have shown that VLP vaccines can stimulate both humoral and cellular immune responses,which may offer effective antiviral protection.Here we review recent developments with VLP-based vaccines for several highly virulent emerging or re-emerging infectious diseases.The infectious agents discussed include RNA viruses from different virus families,such as the Arenaviridae,Bunyaviridae,Caliciviridae,Coronaviridae,Filoviridae,Flaviviridae,Orthomyxoviridae,Paramyxoviridae,and Togaviridae families.
