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Prevalence, Seroprevalence and Risk Factors of Avian Influenza in Wild Bird Populations in Korea: A Systematic Review and Meta-Analysis. Viruses 2023; 15:v15020472. [PMID: 36851686 PMCID: PMC9958818 DOI: 10.3390/v15020472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/03/2023] [Accepted: 02/07/2023] [Indexed: 02/11/2023] Open
Abstract
Since the first recorded outbreak of the highly pathogenic avian influenza (HPAI) virus (H5N1) in South Korea in 2003, numerous sporadic outbreaks have occurred in South Korean duck and chicken farms, all of which have been attributed to avian influenza transmission from migratory wild birds. A thorough investigation of the prevalence and seroprevalence of avian influenza viruses (AIVs) in wild birds is critical for assessing the exposure risk and for directing strong and effective regulatory measures to counteract the spread of AIVs among wild birds, poultry, and humans. In this study, we performed a systematic review and meta-analysis, following the PRISMA guidelines, to generate a quantitative estimate of the prevalence and seroprevalence of AIVs in wild birds in South Korea. An extensive search of eligible studies was performed through electronic databases and 853 records were identified, of which, 49 fulfilled the inclusion criteria. The pooled prevalence and seroprevalence were estimated to be 1.57% (95% CI: 0.98, 2.51) and 15.91% (95% CI: 5.89, 36.38), respectively. The highest prevalence and seroprevalence rates were detected in the Anseriformes species, highlighting the critical role of this bird species in the dissemination of AIVs in South Korea. Furthermore, the results of the subgroup analysis also revealed that the AIV seroprevalence in wild birds varies depending on the detection rate, sample size, and sampling season. The findings of this study demonstrate the necessity of strengthening the surveillance for AIV in wild birds and implementing strong measures to curb the spread of AIV from wild birds to the poultry population.
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Hubálek Z. Pathogenic microorganisms associated with gulls and terns (Laridae). JOURNAL OF VERTEBRATE BIOLOGY 2021. [DOI: 10.25225/jvb.21009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Zdeněk Hubálek
- Institute of Vertebrate Biology of the Czech Academy of Sciences, Brno, Czech Republic; e-mail:
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Qi Y, Wang H, Guo W, Liu C, Zhao L, Gu Y, Li S, Chen X. Surveillance of multiple subtype specific antibodies against avian influenza viruses among egg yolk in wild ducks from northeast China, 2017-2019. Microb Pathog 2020; 152:104618. [PMID: 33220443 DOI: 10.1016/j.micpath.2020.104618] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 11/02/2020] [Accepted: 11/03/2020] [Indexed: 10/22/2022]
Abstract
Over the past decade, various avian influenza viruses have been isolated from wild ducks found in the northeast of China. To monitor the prevalence of multiple subtype specific AIVs antibodies, 1705 wild ducks' eggs from six wetlands of northeast China were analyzed for surveillance of H1, H3, H5, and H7 AIVs antibodies by c-ELISA and HI test from Jan 2017 to Dec 2019. The results show that the combined frequency of multiple subtype specific AIVs antibodies were H1 (12.32%), H3 (8.15%), H5 (2.05%), and H7 (3.46%) respectively. Therefore, a detailed analysis of the geographical distribution of AIVs in China, and the risk factors for human infection is of vital importance. This study provides basic data for other researchers to deeply study AIVs distribution characteristics, and for governments to develop detailed measures to control the spread of AIVs.
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Affiliation(s)
- Yanping Qi
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Anhui Science and Technology University, Fengyang, Anhui, China; College of Animal Science, Anhui Science and Technology University, Fengyang, China
| | - Honghai Wang
- Daqing Animal Husbandry and Veterinary Bureau, DCaqing, Heilongjiang, China
| | - Weina Guo
- College of Animal Science, Anhui Science and Technology University, Fengyang, China
| | - Chang Liu
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Anhui Science and Technology University, Fengyang, Anhui, China
| | - Lei Zhao
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Anhui Science and Technology University, Fengyang, Anhui, China
| | - Youfang Gu
- College of Animal Science, Anhui Science and Technology University, Fengyang, China; Laboratory of Pork Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Fengyang, Anhui, China
| | - Shenghe Li
- College of Animal Science, Anhui Science and Technology University, Fengyang, China; Laboratory of Pork Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Fengyang, Anhui, China
| | - Xuelong Chen
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Anhui Science and Technology University, Fengyang, Anhui, China; College of Animal Science, Anhui Science and Technology University, Fengyang, China.
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Qi Y, Ni HB, Chen X, Li S. Seroprevalence of highly pathogenic avian influenza (H5N1) virus infection among humans in mainland China: A systematic review and meta-analysis. Transbound Emerg Dis 2020; 67:1861-1871. [PMID: 32259345 DOI: 10.1111/tbed.13564] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 03/21/2020] [Accepted: 03/23/2020] [Indexed: 12/28/2022]
Abstract
Although the effective transmission of the H5N1 virus from humans to humans has yet to be further observed, humans are at increased risk of a pandemic caused by H5N1. In order to fully evaluate the seroprevalence and risk factor of highly pathogenic avian influenza A (H5N1) virus infection among in mainland China, we performed a systematic review and meta-analysis. In this review, we searched literature on the seroprevalence of H5N1 infection among humans in mainland China from 1 January 1997 to 20 October 2018 in English and Chinese databases, including PubMed, Google scholar, Cochrane library, Clinical Trial, VIP, CNKI and WanFang database. We made a selection according to the title and the abstract of paper, and then, we excluded duplicated literature, and data incomplete literature according to the exclusion criteria we formulated. Finally, we extracted how many humans have H5N1 infection from the obtained studies to establish the seroprevalence of H5N1 infection among humans in mainland China. A total of 56 studies (including data of 35,159 humans) were compliant with our criteria. In China, the overall seroprevalence of H5N1 infection among humans was 2.45% (862/35,159), while the seroprevalence of H5N1 infection among humans from central China was 7.32% (213/2,911), higher than those in other regions of China. The seroprevalence of H5N1 infection was associated with test method, sampling time and demographic characteristics of humans. However, there was no significant difference in the effect of gender on the seroprevalence of H5N1 among humans in China. The purpose of this review was to better understand the real infection rate of H5N1 virus among humans and evaluate the potential risk factors for the zoonotic spread of H5N1 virus to humans. Sufficient epidemiological data are important to explore and understand the prevalent status of AIVs throughout the country and to disease control.
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Affiliation(s)
- Yanping Qi
- College of Animal Science, Anhui Province Key Laboratory of Animal nutritional regulation and health, Anhui Science and Technology University, Fengyang, China
| | - Hong-Bo Ni
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Xuelong Chen
- College of Animal Science, Anhui Province Key Laboratory of Animal nutritional regulation and health, Anhui Science and Technology University, Fengyang, China
| | - Shenghe Li
- College of Animal Science, Anhui Province Key Laboratory of Animal nutritional regulation and health, Anhui Science and Technology University, Fengyang, China
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Prevalence of avian influenza viruses and their associated antibodies in wild birds in China: A systematic review and meta-analysis. Microb Pathog 2019; 135:103613. [PMID: 31254602 DOI: 10.1016/j.micpath.2019.103613] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 06/13/2019] [Accepted: 06/26/2019] [Indexed: 11/23/2022]
Abstract
Avian influenza viruses (AIVs) in wild birds pose a pandemic threat to humans and to the poultry industry. To assess AIV and AIV antibody prevalence in wild birds in China, a systematic review and meta-analysis were conducted. We searched PubMed, Google Scholar, Cochrane Library, Clinical Trial, VIP, CNKI, and WANFANG for published papers related to the prevalence of AIVs and their associated antibodies in wild birds in China from Mar. 10, 2005 to Sept. 20, 2018. Repeat studies, reviews, and other host studies were excluded, as well as those with inconsistent data, incomplete information, or only prevalence data or data from outside of mainland China. In total, data from 28 publications were compiled and analyzed. Based on out meta-analysis, the pooled prevalence of AIVs in wild birds in China was found to be 2.5% (571/23,024), and the pooled prevalence of AIV antibodies was 26.5% (1,210/4,566). The pooled prevalence of AIVs was significantly higher in wild birds from Central China (5.5%, 271/4, 955) compared to all other regions and the pooled prevalence of AIV antibodies was significantly in wild birds from South China (56.8%, 92/162) in comparison to all other regions. The prevalence of both AIVs and AIV antibodies in Anseriformes were higher compared to non-Anseriformes. In addition, the largest number of studies found in this review were on the HA subtypes of AIVs (H5, H7, and H9) and their associated antibodies. In summary, our findings suggest that the prevalence of AIVs and their antibodies in wild birds vary among regions and species of wild bird. Thus, further monitoring of the prevalence of AIVs and their antibodies in wild birds in China is necessary and should be used for guiding powerful and effective regulatory measures that will prevent the spread of AIVs across species.
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Dirsmith KL, Jeffrey Root J, Bentler KT, Sullivan HJ, Liebowitz AB, Petersen LH, McLean HE, Shriner SA. Persistence of maternal antibodies to influenza A virus among captive mallards (Anas platyrhynchos). Arch Virol 2018; 163:3235-3242. [PMID: 30128612 DOI: 10.1007/s00705-018-3978-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 07/23/2018] [Indexed: 10/28/2022]
Abstract
Wild waterfowl are maintenance hosts of most influenza A virus (IAV) subtypes and are often the subjects of IAV surveillance and transmission models. While maternal antibodies have been detected in yolks and in nestlings for a variety of wild bird species and pathogens, the persistence of maternal antibodies to IAVs in mallard ducklings (Anas platyrhynchos) has not been previously investigated. Nonetheless, this information is important for a full understanding of IAV transmission dynamics because ducklings protected by maternal antibodies may not be susceptible to infection. In this study, we examined the transfer of IAV-specific maternal antibodies to ducklings. Blood samples were collected approximately every five days from ducklings hatched from hens previously infected with an H6 strain of IAV. Serum samples were tested for antibodies to IAV by an enzyme-linked immunosorbent assay. The median persistence of maternal antibodies in ducklings was 12.5 days (range: 4-33 days) post-hatch. The majority of ducklings (71%) had detectable maternal antibodies from 4 to 17 days post-hatch, while a small subset of individuals (29%) had detectable maternal antibodies for up to 21-33 days post-hatch. Antibody concentrations in hens near the time of egg laying were correlated with maternal antibody concentrations in the initial blood sample collected from ducklings (0-4 days post-hatch). Knowledge of the duration of maternal antibodies in ducklings will aid in the interpretation of IAV serological surveillance results and in the modeling of IAV transmission dynamics in waterfowl.
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Affiliation(s)
- Katherine L Dirsmith
- National Wildlife Research Center, Animal and Plant Health Inspection Service, United States Department of Agriculture, Fort Collins, CO, USA. .,College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA.
| | - J Jeffrey Root
- National Wildlife Research Center, Animal and Plant Health Inspection Service, United States Department of Agriculture, Fort Collins, CO, USA
| | - Kevin T Bentler
- National Wildlife Research Center, Animal and Plant Health Inspection Service, United States Department of Agriculture, Fort Collins, CO, USA
| | - Heather J Sullivan
- National Wildlife Research Center, Animal and Plant Health Inspection Service, United States Department of Agriculture, Fort Collins, CO, USA
| | - Andrea B Liebowitz
- National Wildlife Research Center, Animal and Plant Health Inspection Service, United States Department of Agriculture, Fort Collins, CO, USA
| | - Lauren H Petersen
- National Wildlife Research Center, Animal and Plant Health Inspection Service, United States Department of Agriculture, Fort Collins, CO, USA
| | - Hailey E McLean
- National Wildlife Research Center, Animal and Plant Health Inspection Service, United States Department of Agriculture, Fort Collins, CO, USA
| | - Susan A Shriner
- National Wildlife Research Center, Animal and Plant Health Inspection Service, United States Department of Agriculture, Fort Collins, CO, USA
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