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Wu X, Wang C, Wen HX, Nie PY, Ye JF. The impacts of COVID-19 on China insurance industry-An empirical analysis based on event study. Front Public Health 2022; 10:1033863. [PMID: 36518577 PMCID: PMC9742270 DOI: 10.3389/fpubh.2022.1033863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 11/08/2022] [Indexed: 11/29/2022] Open
Abstract
Introduction At the end of 2019, the sudden outbreak of COVID-19 pneumonia has developed from a mass health event to a global epidemic disaster. Its impact extends from human health to social, economic, political, international relations and global governance. In the process of fighting against the epidemic in China, almost all economic sectors were affected, and the insurance industry with epidemic sensitive characteristics was particularly affected. Methods In order to identify the impacts of COVID-19 on China's insurance industry, this paper uses the event study method to calculate the changes in the cumulative abnormal return rate and the cumulative excess return of Chinese listed insurance companies before and after the outbreak of COVID-19. In the empirical analysis, five different typical events are examined, including the first outbreak of COVID-19 in China, the closure of Wuhan, the dredging of Wuhan, and the listing of vaccines in China. Results The results show that the return rate of listed companies in the insurance industry showed an "inverted N" curve with the "decreasing, rising and then decreasing." The epidemic mainly has negative effects on the insurance industry in terms of premium income and indemnity expenditure. According to the supply shock theory of the new supply economics, the epidemic has a negative impact on the insurance industry in the short term and a positive impact in the long term. Discussion In this context, insurance enterprises should attach importance to the change of business model, strengthen the development model of public-private joint venture insurance, promote product innovation and the application of insurance technology, and the experience and practice of the insurance industry in responding to the impact of the epidemic are of great significance to the transformation of China's insurance industry.
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Affiliation(s)
- Xuan Wu
- School of Economics, Guangdong University of Finance and Economics, Guangzhou, China
| | - Chan Wang
- School of Economics, Guangdong University of Finance and Economics, Guangzhou, China
| | - Hong-xing Wen
- School of Economics, Guangdong University of Finance and Economics, Guangzhou, China
| | - Pu-yan Nie
- School of Economics, Guangdong University of Finance and Economics, Guangzhou, China
| | - Jin-fa Ye
- Guangzhou Chow Tai Fook Financial Center, Aegon THTF Life Insurance Company, Guangzhou, China
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Wang K, Wang X, Cheng S, Cheng L, Wang R. National emissions inventory and future trends in greenhouse gases and other air pollutants from civil airports in China. Environ Sci Pollut Res Int 2022; 29:81703-81712. [PMID: 35739449 PMCID: PMC9225816 DOI: 10.1007/s11356-022-21425-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
Civil aviation is an important source of air pollutants, but this field has received insufficient attention in China. Based on the standard emissions model of the International Civil Aviation Organization (ICAO) and actual flight information from 241 airports, this study estimated a comprehensive emissions inventory for 2010-2020 by considering the impacts of mixing layer height. The results showed that annual pollutant emissions rapidly trended upward along with population and economic growth; however, the emissions decreased owing to the impacts of the COVID-19 pandemic. In 2020, the emissions of carbon monoxide (CO), nitrogen oxides (NOX), particulate matter (PM), methane (CH4), nitrous oxide (N2O), carbon dioxide (CO2), and water vapor (H2O) were 34.34, 65.73, 0.10, 0.34, 0.40, 14,706.26, and 5733.11 Gg, respectively. The emissions of total volatile organic compounds (VOCs) from China's civil airports in 2020 were estimated at 17.20 Gg; the major components were formic acid (1.70 Gg), acetic acid (1.62 Gg), 1-butylene (1.03 Gg), acetone (0.96 Gg), and acetaldehyde (0.93 Gg). The distribution of pollutant emissions was consistent with the level of economic development, mainly in Beijing, Guangzhou, and Shanghai. In addition, we estimated future pollution trends for the aviation industry under four scenarios. Under the comprehensive scenario, which considered the impacts of economic growth, passenger turnover, cargo turnover, COVID-19, and technological efficiency, the levels of typical pollutants were expected to increase by nearly 1.51-fold from 2010 to 2035.
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Affiliation(s)
- Kai Wang
- Key Laboratory of Beijing On Regional Air Pollution Control, Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, China
| | - Xiaoqi Wang
- Key Laboratory of Beijing On Regional Air Pollution Control, Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, China
| | - Shuiyuan Cheng
- Key Laboratory of Beijing On Regional Air Pollution Control, Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, China.
| | - Long Cheng
- Key Laboratory of Beijing On Regional Air Pollution Control, Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, China
| | - Ruipeng Wang
- Key Laboratory of Beijing On Regional Air Pollution Control, Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, China
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Kumakamba C, Niama FR, Muyembe F, Mombouli JV, Kingebeni PM, Nina RA, Lukusa IN, Bounga G, N'Kawa F, Nkoua CG, Atibu Losoma J, Mulembakani P, Makuwa M, Tamufe U, Gillis A, LeBreton M, Olson SH, Cameron K, Reed P, Ondzie A, Tremeau-Bravard A, Smith BR, Pante J, Schneider BS, McIver DJ, Ayukekbong JA, Hoff NA, Rimoin AW, Laudisoit A, Monagin C, Goldstein T, Joly DO, Saylors K, Wolfe ND, Rubin EM, Bagamboula MPassi R, Muyembe Tamfum JJ, Lange CE. Coronavirus surveillance in wildlife from two Congo basin countries detects RNA of multiple species circulating in bats and rodents. PLoS One 2021; 16:e0236971. [PMID: 34106949 PMCID: PMC8189465 DOI: 10.1371/journal.pone.0236971] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 05/19/2021] [Indexed: 12/21/2022] Open
Abstract
Coronaviruses play an important role as pathogens of humans and animals, and the emergence of epidemics like SARS, MERS and COVID-19 is closely linked to zoonotic transmission events primarily from wild animals. Bats have been found to be an important source of coronaviruses with some of them having the potential to infect humans, with other animals serving as intermediate or alternate hosts or reservoirs. Host diversity may be an important contributor to viral diversity and thus the potential for zoonotic events. To date, limited research has been done in Africa on this topic, in particular in the Congo Basin despite frequent contact between humans and wildlife in this region. We sampled and, using consensus coronavirus PCR-primers, tested 3,561 wild animals for coronavirus RNA. The focus was on bats (38%), rodents (38%), and primates (23%) that posed an elevated risk for contact with people, and we found coronavirus RNA in 121 animals, of which all but two were bats. Depending on the taxonomic family, bats were significantly more likely to be coronavirus RNA-positive when sampled either in the wet (Pteropodidae and Rhinolophidae) or dry season (Hipposideridae, Miniopteridae, Molossidae, and Vespertilionidae). The detected RNA sequences correspond to 15 alpha- and 6 betacoronaviruses, with some of them being very similar (>95% nucleotide identities) to known coronaviruses and others being more unique and potentially representing novel viruses. In seven of the bats, we detected RNA most closely related to sequences of the human common cold coronaviruses 229E or NL63 (>80% nucleotide identities). The findings highlight the potential for coronavirus spillover, especially in regions with a high diversity of bats and close human contact, and reinforces the need for ongoing surveillance.
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Affiliation(s)
| | - Fabien R Niama
- National Laboratory of Public Health, Brazzaville, Republic of the Congo
| | | | | | | | - Rock Aime Nina
- Ministry of Agriculture and Livestock, Brazzaville, Republic of the Congo
| | - Ipos Ngay Lukusa
- Metabiota Inc, Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Gerard Bounga
- Wildlife Conversation Society, Bronx, New York, United States of America
| | - Frida N'Kawa
- Metabiota Inc, Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Cynthia Goma Nkoua
- National Laboratory of Public Health, Brazzaville, Republic of the Congo
| | | | | | - Maria Makuwa
- Metabiota Inc, Kinshasa, Kinshasa, Democratic Republic of the Congo.,Labyringth Global Health St. Petersburg, Florida, United States of America
| | - Ubald Tamufe
- Metabiota Cameroon Ltd, Yaoundé, Centre, Cameroon
| | - Amethyst Gillis
- Metabiota Inc, San Francisco, California, United States of America
| | | | - Sarah H Olson
- Wildlife Conversation Society, Bronx, New York, United States of America
| | - Kenneth Cameron
- Wildlife Conversation Society, Bronx, New York, United States of America
| | - Patricia Reed
- Wildlife Conversation Society, Bronx, New York, United States of America
| | - Alain Ondzie
- Wildlife Conversation Society, Bronx, New York, United States of America
| | - Alex Tremeau-Bravard
- One Health Institute, School of Veterinary Medicine, University of California, Davis, California, United States of America
| | - Brett R Smith
- One Health Institute, School of Veterinary Medicine, University of California, Davis, California, United States of America
| | - Jasmine Pante
- One Health Institute, School of Veterinary Medicine, University of California, Davis, California, United States of America
| | | | | | | | - Nicole A Hoff
- Fielding School of Public Health, University of California, Los Angeles, California, United States of America
| | - Anne W Rimoin
- Fielding School of Public Health, University of California, Los Angeles, California, United States of America
| | - Anne Laudisoit
- EcoHealth Alliance, New York, New York, United States of America
| | - Corina Monagin
- Metabiota Inc, San Francisco, California, United States of America.,One Health Institute, School of Veterinary Medicine, University of California, Davis, California, United States of America
| | - Tracey Goldstein
- One Health Institute, School of Veterinary Medicine, University of California, Davis, California, United States of America
| | - Damien O Joly
- Wildlife Conversation Society, Bronx, New York, United States of America.,Metabiota Inc, Nanaimo, British Columbia, Canada
| | - Karen Saylors
- Labyringth Global Health St. Petersburg, Florida, United States of America.,Metabiota Inc, San Francisco, California, United States of America
| | - Nathan D Wolfe
- Metabiota Inc, San Francisco, California, United States of America
| | - Edward M Rubin
- Metabiota Inc, San Francisco, California, United States of America
| | | | - Jean J Muyembe Tamfum
- Institut National de Recherche Biomédicale, Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Christian E Lange
- Labyringth Global Health St. Petersburg, Florida, United States of America.,Metabiota Inc, Nanaimo, British Columbia, Canada
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Jia YF, Jian Z, Gao YT. Current status and future prospect of management of biosafety laboratories for emerging infectious diseases. Shijie Huaren Xiaohua Zazhi 2020; 28:1059-1067. [DOI: 10.11569/wcjd.v28.i21.1059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In recent years, there have been several outbreaks of infectious diseases around the world, including severe acute respiratory syndrome, Ebola virus disease, Middle East respiratory syndrome, and corona virus disease 2019. Experience suggests that the detection and research of emergent infectious diseases play a crucial role in the process of responding to the epidemic, which also brings great challenges to biosafety laboratories. In the face of unknown biological risk factors, the non-standard biosafety protection measures have a serious impact on the life safety of laboratory staff and the research of infectious diseases, which stresses the necessity of safety protection in biosafety laboratories. This article will briefly review the current status and future prospect of management of biosafety laboratories both in China and other countries in terms of safety protection measures during new sudden infectious disease incidents.
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Affiliation(s)
- Yan-Fang Jia
- Tianjin Medical University Third Center Clinical College, Tianjin 300170, China
| | - Zheng Jian
- Department of Clinical Laboratory Medicine, Tianjin First Central Hospital, Tianjin 300192, China
| | - Ying-Tang Gao
- Tianjin Third Central Hospital, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin Institute of Hepatobiliary Disease, Tianjin 300170, China
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