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Xiong T, Xie H, Li L, Liang S, Huang M, Yu C, Zhuang T, Liang X, Liu D, Chen R. Prevalence, Genotype Diversity, and Distinct Pathogenicity of 205 Gammacoronavirus Infectious Bronchitis Virus Isolates in China during 2019-2023. Viruses 2024; 16:930. [PMID: 38932222 PMCID: PMC11209364 DOI: 10.3390/v16060930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 06/04/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
Gammacoronavirus infectious bronchitis virus (IBV) causes a highly contagious disease in chickens and seriously endangers the poultry industry. The emergence and co-circulation of diverse IBV serotypes and genotypes with distinct pathogenicity worldwide pose a serious challenge to the development of effective intervention measures. In this study, we report the epidemic trends of IBV in China from 2019 to 2023 and a comparative analysis on the antigenic characteristics and pathogenicity of isolates among major prevalent lineages. Phylogenetic and recombination analyses based on the nucleotide sequences of the spike (S) 1 gene clustered a total of 205 isolates into twelve distinct lineages, with GI-19 as a predominant lineage (61.77 ± 4.56%) exhibiting an overall increasing trend over the past five years, and demonstrated that a majority of the variants were derived from gene recombination events. Further characterization of the growth and pathogenic properties of six representative isolates from different lineages classified four out of the six isolates as nephropathogenic types with mortality rates in one-day-old SPF chickens varying from 20-60%, one as a respiratory type with weak virulence, and one as a naturally occurring avirulent strain. Taken together, our findings illuminate the epidemic trends, prevalence, recombination, and pathogenicity of current IBV strains in China, providing key information for further strengthening the surveillance and pathogenicity studies of IBV.
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Affiliation(s)
- Ting Xiong
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China
- Zhaoqing Branch of Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Zhaoqing 526238, China
| | - Hangao Xie
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China
- Zhaoqing Branch of Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Zhaoqing 526238, China
| | - Lin Li
- Key Laboratory of Manufacture Technology of Veterinary Bioproducts, Ministry of Agriculture and Rural Affairs, Zhaoqing 526238, China
| | - Shijin Liang
- Zhaoqing Branch of Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Zhaoqing 526238, China
| | - Meizhen Huang
- Zhaoqing Branch of Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Zhaoqing 526238, China
| | - Chuanzhao Yu
- Zhaoqing Branch of Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Zhaoqing 526238, China
| | - Tingting Zhuang
- Zhaoqing Branch of Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Zhaoqing 526238, China
| | - Xuejing Liang
- Zhaoqing Branch of Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Zhaoqing 526238, China
| | - Dingxiang Liu
- Zhaoqing Branch of Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Zhaoqing 526238, China
- Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China
| | - Ruiai Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China
- Zhaoqing Branch of Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Zhaoqing 526238, China
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Huang M, Chen Y, Zheng L, Yao YF. Highly sensitive and naked-eye detection of herpes simplex virus type 1 using LAMP- CRISPR/Cas12 diagnostic technology and gold nanoparticles. Heliyon 2023; 9:e22146. [PMID: 38034811 PMCID: PMC10685372 DOI: 10.1016/j.heliyon.2023.e22146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/20/2023] [Accepted: 11/05/2023] [Indexed: 12/02/2023] Open
Abstract
Herpes simplex virus type 1 (HSV-1) Keratitis (HSK) is a highly prevalent eye disease worldwide, characterized by lifelong recurrent episodes and a major risk of leading to blindness. Detecting HSV-1 promptly and accurately can initiate a timely and appropriate therapeutic regimen, minimizing tissue damage and preventing vision impairment. Currently, PCR is the most reliable method for identifying HSV-1, but its utilization for point-of-care (POC) HSV-1 detection is limited due to the need for sophisticated equipment, particularly in areas with limited resources. Here, we propose a new method for on-site HSV detection by using LAMP-Cas12 diagnostic technology and gold nanoparticles. This technique possesses comparable sensitivity to qPCR, and its detection results could be easily read and interpreted without the need for complex equipment. In detecting HSV in clinical tear specimens, this strategy achieved a 93.9 % consistency in positive detection and a 100 % consistency in negative detection compared to qPCR. Our strategy innovates the technique of current HSV-1 detections and is expected to play a crucial role in POC diagnosis of HSK in the future.
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Affiliation(s)
- Mengqi Huang
- Department of Ophthalmology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310016, China
- Key Laboratory for Corneal Diseases Research of Zhejiang Province, China
| | - Yihong Chen
- Department of Ophthalmology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310016, China
- Key Laboratory for Corneal Diseases Research of Zhejiang Province, China
| | - Libin Zheng
- Department of Ophthalmology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310016, China
- Key Laboratory for Corneal Diseases Research of Zhejiang Province, China
| | - Yu-Feng Yao
- Department of Ophthalmology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310016, China
- Key Laboratory for Corneal Diseases Research of Zhejiang Province, China
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Oumarou Hama H, Boualam MA, Levasseur A, Ardagna Y, Adalian P, Chaix AC, Drancourt M. Old World Medieval Treponema pallidum Complex Treponematosis: A Case Report. J Infect Dis 2023; 228:503-510. [PMID: 37440462 DOI: 10.1093/infdis/jiad248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 05/02/2023] [Accepted: 06/30/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND Introduction of 1 Treponema pallidum complex pathogen in naive European populations following the return of Christopher Columbus' troops from Central America in 1493 is a central dogma in venereology. METHODS Among skeletal elements from the seventh or eighth century uncovered in Roquevaire, France, individual RS-1003 femur macroscopically suspected of having an infectious disease was investigated by means of paleoautoimmunohistochemistry, direct metagenomics, and paleoserology, along with 1 control femur from an apparently healthy individual (R-1003) and experimental negative controls. RESULTS RS-1003 femur showed infectious bone; paleoautoimmunohistochemistry of the lesions led to microscopic detection of a T. pallidum complex pathogen. Phylogenetic analyses comprising 71 T. pallidum complex-specific reads covering 2.37% of the T. pallidum subsp. pallidum reference genome sequence revealed an ancestral T. pallidum complex pathogen in the lesion. Paleoserology detecting T. pallidum-specific antigens confirmed positive serological findings in individual RS-1003. Individual R-1003 and the negative controls remained negative. CONCLUSIONS This case, predating by 8 centuries previous detections of T. pallidum complex treponematosis in Europe, indicated that European populations were not naive to these pathogens before the 1493 introduction of a Central American T. pallidum complex pathogen overwhelming the T. pallidum ones previously circulating in the Old World. These data break a century-old dogma in medical microbiology.
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Affiliation(s)
- Hamadou Oumarou Hama
- Aix-Marseille University, IRD, MEPHI, Institut Méditerranée Infection, Marseille, France
- Institut Méditerranée Infection, Marseille, France
| | - Mahmoud A Boualam
- Aix-Marseille University, IRD, MEPHI, Institut Méditerranée Infection, Marseille, France
- Institut Méditerranée Infection, Marseille, France
| | - Anthony Levasseur
- Aix-Marseille University, IRD, MEPHI, Institut Méditerranée Infection, Marseille, France
- Institut Méditerranée Infection, Marseille, France
| | - Yann Ardagna
- Aix-Marseille University, Centre National de la Recherche Scientifique, Etablissement Français du Sang, Anthropologie, Droit, Ethique et Santé, Marseille, France
| | - Pascal Adalian
- Aix-Marseille University, Centre National de la Recherche Scientifique, Etablissement Français du Sang, Anthropologie, Droit, Ethique et Santé, Marseille, France
| | - Annie-Claire Chaix
- Association pour la Sauvegarde du Patrimoine Historique et Culturel de la Commune de Roquevaire, Roquevaire, France
| | - Michel Drancourt
- Aix-Marseille University, IRD, MEPHI, Institut Méditerranée Infection, Marseille, France
- Institut Méditerranée Infection, Marseille, France
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Usai C, Pailler-García L, Lorca-Oró C, Fernández-Bastit L, Roca N, Brustolin M, Rodon J, Pérez M, Cantero G, Carrillo J, Izquierdo-Useros N, Blanco J, Clotet B, Napp S, Segalés J, Vergara-Alert J. Agreement and differential use of laboratory methods for the detection and quantification of SARS-CoV-2 in experimentally infected animals. Front Microbiol 2022; 13:1016201. [DOI: 10.3389/fmicb.2022.1016201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/10/2022] [Indexed: 11/16/2022] Open
Abstract
Rodents are widely used for the development of COVID-19-like animal models, the virological outcome being determined through several laboratory methods reported in the literature. Our objective was to assess the agreement between methods performed on different sample types from 342 rodents experimentally infected with SARS-CoV-2 (289 golden Syrian hamsters and 53 K18-hACE2 mice). Our results showed moderate agreement between methods detecting active viral replication, and that increasing viral loads determined by either RT-qPCR or infectious viral titration corresponded to increasing immunohistochemical scores. The percentage of agreement between methods decreased over experimental time points, and we observed poor agreement between RT-qPCR results and viral titration from oropharyngeal swabs. In conclusion, RT-qPCR and viral titration on tissue homogenates are the most reliable techniques to determine the presence and replication of SARS-CoV-2 in the early and peak phases of infection, and immunohistochemistry is valuable to evaluate viral distribution patterns in the infected tissues.
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Infective Endocarditis in High-Income Countries. Metabolites 2022; 12:metabo12080682. [PMID: 35893249 PMCID: PMC9329978 DOI: 10.3390/metabo12080682] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/19/2022] [Accepted: 07/21/2022] [Indexed: 01/27/2023] Open
Abstract
Infective endocarditis remains an illness that carries a significant burden to healthcare resources. In recent times, there has been a shift from Streptococcus sp. to Staphylococcus sp. as the primary organism of interest. This has significant consequences, given the virulence of Staphylococcus and its propensity to form a biofilm, rendering non-surgical therapy ineffective. In addition, antibiotic resistance has affected treatment of this organism. The cohorts at most risk for Staphylococcal endocarditis are elderly patients with multiple comorbidities. The innovation of transcatheter technologies alongside other cardiac interventions such as implantable devices has contributed to the increased risk attributable to this cohort. We examined the pathophysiology of infective endocarditis carefully. Inter alia, the determinants of Staphylococcus aureus virulence, interaction with host immunity, as well as the discovery and emergence of a potential vaccine, were investigated. Furthermore, the potential role of prophylactic antibiotics during dental procedures was also evaluated. As rates of transcatheter device implantation increase, endocarditis is expected to increase, especially in this high-risk group. A high level of suspicion is needed alongside early initiation of therapy and referral to the heart team to improve outcomes.
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