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Xie Z, Zhu Z, Xu J, Mao N, Cui A, Wang W, Wang Y, Zhang Z, Xia B, Wang H, Sun Z, Zhang Y. Seasonal and Genetic Characteristics of Human Metapneumovirus Circulating - Henan Province, China, 2017-2023. China CDC Wkly 2024; 6:450-456. [PMID: 38846360 PMCID: PMC11150164 DOI: 10.46234/ccdcw2024.087] [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: 04/08/2024] [Accepted: 05/11/2024] [Indexed: 06/09/2024] Open
Abstract
Introduction This study examines the seasonal and genetic characteristics of human metapneumovirus (HMPV) in Henan from 2017 to 2023. Methods Samples from patients with acute respiratory infection (ARI) testing positive for HMPV were subjected to real-time reverse transcription polymerase chain reaction The G gene was amplified and sequenced from these samples for epidemiological and phylogenetic analysis. Results We enrolled 2,707 ARI patients from October 2017 to March 2023, finding an HMPV positivity rate of 6.17% (167/2,707). Children under five exhibited the highest infection rate at 7.78% (138/1,774). The 2018 and 2019 HMPV outbreaks predominantly occurred in spring (March to May), with peak positivity rates of 31.11% in May 2018 and 19.57% in May 2019. A notable increase occurred in November 2020, when positivity reached a historic high of 42.11%, continuing until January 2021. From February 2021 through March 2023, no significant seasonal peaks were observed, with rates ranging from 0% to 8.70%. Out of 81 G gene sequences analyzed, 46.91% (38/81) were identified as subtype A (A2c: 45.67%, 37/81; A2b: 1.23%, 1/81) and 53.09% (43/81) as subtype B (B1: 9.88%, 8/81; B2: 43.21%, 35/81). Notably, an AAABBA switch pattern was observed in HMPV subtypes. The dominant strains were A2c111nt-dup in subtype A and B2 in subtype B. Conclusions Six years of surveillance in Henan Province has detailed the seasonal and genetic dynamics of HMPV, contributing valuable insights for the control and prevention of HMPV infections in China. These findings support the development of targeted HMPV vaccines and immunization strategies.
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Affiliation(s)
- Zhibo Xie
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, NHC Key Laboratory of Medical Virology and Viral Disease, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhen Zhu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, NHC Key Laboratory of Medical Virology and Viral Disease, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jin Xu
- Henan Provincial Center for Disease Control and Prevention, Luohe City, Henan Province, China
| | - Naiying Mao
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, NHC Key Laboratory of Medical Virology and Viral Disease, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Aili Cui
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, NHC Key Laboratory of Medical Virology and Viral Disease, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Wenhui Wang
- Henan Provincial Center for Disease Control and Prevention, Luohe City, Henan Province, China
| | - Yage Wang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, NHC Key Laboratory of Medical Virology and Viral Disease, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhibo Zhang
- Luohe Center for Disease Control and Prevention, Luohe City, Henan Province, China
| | - Baicheng Xia
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, NHC Key Laboratory of Medical Virology and Viral Disease, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Haoran Wang
- Luohe Central Hospital, Luohe City, Henan Province, China
| | - Zhen Sun
- Luohe Central Hospital, Luohe City, Henan Province, China
| | - Yan Zhang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, NHC Key Laboratory of Medical Virology and Viral Disease, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
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Liu W, Zhang H, Zhao T, Cai X, Yang L, Gao G, Che X, Zhu Z, Zeng T, Cui F. Molecular Epidemiology and Clinical Characteristics of an Outbreak on Respiratory Virus Coinfection in Gansu, China. Viruses 2024; 16:540. [PMID: 38675883 PMCID: PMC11054386 DOI: 10.3390/v16040540] [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: 02/27/2024] [Revised: 03/26/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
This study aims to analyze the epidemiological and pathogenic characteristics of an outbreak primarily caused by respiratory syncytial virus (RSV), human rhinovirus (HRV), and human metapneumovirus (HMPV) in a kindergarten and primary school. The outbreak was investigated by field epidemiological investigation, and the common respiratory pathogens were screened by RT-PCR detection technology. The attack rate of this outbreak was 63.95% (110/172). Main symptoms included cough (85.45%), sore throat (60.91%), and sneezing (60.00%). Multifactorial logistic regression analysis revealed that continuous handwashing and mouth and nose covering when sneezing were protective factors. All 15 collected throat swab specimens tested positive for viruses, with HMPV as the predominant pathogen (80.00%), followed by HRV (53.33%), and two cases of positive respiratory syncytial virus (13.33%). Among them, six samples showed coinfections of HMPV and HRV, and one had coinfections of HMPV and RSV, resulting in a coinfection rate of 46.67%. Genetic sequencing indicated that the HMPV genotype in this outbreak was A2c, and the HRV genotype was type A, resulting in a coinfection outbreak of HMPV, HRV, and RSV in schools and kindergartens, suggesting that multi-pathogen surveillance of respiratory tract infections should be strengthened.
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Affiliation(s)
- Wu Liu
- Jingyuan County Center for Disease Control and Prevention, Jingyuan 730699, China; (W.L.); (L.Y.); (G.G.); (X.C.); (Z.Z.)
| | - Hui Zhang
- Gansu Provincial Center for Disease Control and Prevention, Key Laboratory of Pathogenic Microbiology and Immunology (Gansu Province), Lanzhou 730050, China;
| | - Tianshuo Zhao
- Department of Health Inspection, Vaccine Research and Evaluation Center, School of Public Health, Peking University, Beijing 101100, China; (T.Z.); (X.C.)
| | - Xianming Cai
- Department of Health Inspection, Vaccine Research and Evaluation Center, School of Public Health, Peking University, Beijing 101100, China; (T.Z.); (X.C.)
| | - Liguo Yang
- Jingyuan County Center for Disease Control and Prevention, Jingyuan 730699, China; (W.L.); (L.Y.); (G.G.); (X.C.); (Z.Z.)
| | - Genxia Gao
- Jingyuan County Center for Disease Control and Prevention, Jingyuan 730699, China; (W.L.); (L.Y.); (G.G.); (X.C.); (Z.Z.)
| | - Xiaoyan Che
- Jingyuan County Center for Disease Control and Prevention, Jingyuan 730699, China; (W.L.); (L.Y.); (G.G.); (X.C.); (Z.Z.)
| | - Zhenhong Zhu
- Jingyuan County Center for Disease Control and Prevention, Jingyuan 730699, China; (W.L.); (L.Y.); (G.G.); (X.C.); (Z.Z.)
| | - Tongxia Zeng
- Scientific Research Training Department, Baiyin City Center for Disease Control and Prevention, Baiyin 730900, China
| | - Fuqiang Cui
- Department of Health Inspection, Vaccine Research and Evaluation Center, School of Public Health, Peking University, Beijing 101100, China; (T.Z.); (X.C.)
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Veronese A, Uršič T, Bizjak Vojinovič S, Rodman Berlot J. Exploring Clinical Predictors of Severe Human Metapneumovirus Respiratory Tract Infections in Children: Insights from a Recent Outbreak. Microorganisms 2024; 12:641. [PMID: 38674586 PMCID: PMC11052206 DOI: 10.3390/microorganisms12040641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 03/11/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024] Open
Abstract
Human metapneumovirus (hMPV) is an important pathogen that causes both upper (URTIs) and lower respiratory tract infections (LRTIs) in children. The virus can be implicated in severe bronchiolitis and pneumonia, necessitating hospitalization, with certain cases requiring intensive care unit intervention. As part of a retrospective observational study, we aimed to identify indicators of severe hMPV respiratory tract infections in children referred to the University Children's Hospital Ljubljana and the Department of Infectious Diseases Ljubljana, Slovenia, during a recent outbreak. We analyzed clinical data from November 2022 to January 2023 and compared the characteristics of children presenting with URTIs and LRTIs. We also examined the characteristics of children with hMPV LRTIs, distinguishing between children with and without LRTI-associated hypoxemia. Of 78 hMPV-PCR-positive pediatric patients (mean age 3.1 years; 60.3% boys), 36% had a URTI, and 64% had an LRTI. Hospitalization was required in 64% (50/78), with 42% (21/50) requiring oxygen therapy. LRTI-associated hypoxemia was more common in patients with atopy who showed dyspnea, tachypnea, crackles, and wheezing on lung auscultation. In a multivariable logistic regression analysis, wheezing detected on lung auscultation was a significant predictive factor for hypoxemic hMPV-LRTI. Specifically, children presenting with wheezing were found to be ten times more likely to experience hypoxemia. Prematurity and chronic conditions did not influence the presentation or severity of hMPV infection. This study highlights wheezing and atopy as crucial indicators of severe hMPV LRTI in children, emphasizing the importance of early recognition and intervention.
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Affiliation(s)
- Airin Veronese
- Department of Paediatric Pulmonology, University Children’s Hospital, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
| | - Tina Uršič
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Simona Bizjak Vojinovič
- Department of Infectious Diseases, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia;
| | - Jasna Rodman Berlot
- Department of Paediatric Pulmonology, University Children’s Hospital, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
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Feng Y, He T, Zhang B, Yuan H, Zhou Y. Epidemiology and diagnosis technologies of human metapneumovirus in China: a mini review. Virol J 2024; 21:59. [PMID: 38454484 PMCID: PMC10921660 DOI: 10.1186/s12985-024-02327-9] [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: 12/12/2023] [Accepted: 02/26/2024] [Indexed: 03/09/2024] Open
Abstract
Human metapneumovirus (HMPV) is a newly identified pathogen causing acute respiratory tract infections in young infants worldwide. Since the initial document of HMPV infection in China in 2003, Chinese scientists have made lots of efforts to prevent and control this disease, including developing diagnosis methods, vaccines and antiviral agents against HMPV, as well as conducting epidemiological investigations. However, effective vaccines or special antiviral agents against HMPV are currently not approved, thus developing early diagnosis methods and knowing its epidemiological characteristics will be beneficial for HMPV control. Here, we summarized current research focused on the epidemiological characteristics of HMPV in China and its available detection methods, which will be beneficial to increase the public awareness and disease control in the future.
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Affiliation(s)
- Yuan Feng
- Xiangtan Central Hospital, Xiangtan, 411100, Hunan, China
| | - Tao He
- Xiangtan Maternal and Child Health Hospital, Xiangtan, 411100, China
| | - Bo Zhang
- Xiangtan Central Hospital, Xiangtan, 411100, Hunan, China
| | - Haibin Yuan
- Xiangtan Central Hospital, Xiangtan, 411100, Hunan, China
| | - Yinfei Zhou
- Xiangtan Central Hospital, Xiangtan, 411100, Hunan, China.
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Ye H, Zhang S, Zhang K, Li Y, Chen D, Tan Y, Liang L, Liu M, Liang J, An S, Wu J, Zhu X, Li M, He Z. Epidemiology, genetic characteristics, and association with meteorological factors of human metapneumovirus infection in children in southern China: A 10-year retrospective study. Int J Infect Dis 2023; 137:40-47. [PMID: 37816430 DOI: 10.1016/j.ijid.2023.10.002] [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: 05/27/2023] [Revised: 09/15/2023] [Accepted: 10/04/2023] [Indexed: 10/12/2023] Open
Abstract
OBJECTIVES This study aimed to determine the epidemiological and genetic features of human metapneumovirus (HMPV) infection in children in southern China, and the effect of meteorological factors on infection. METHODS 14,817 children (≤14 years) with acute respiratory tract infections from 2010 to 2019 were examined for HMPV and other respiratory viruses by real-time quantitative polymerase chain reaction. Full-length F gene of 54 positive samples were sequenced and subjected to phylogenetic analysis. The correlation between the HMPV-positive rate and meteorological factors was analyzed by linear regression analysis. RESULTS HMPV was detected in 524 (3.5%) children, who were mostly younger than 1 year. The seasonal peak of HMPV prevalence mainly occurred in spring. Respiratory syncytial virus was the most common virus coinfected with HMPV (5.3%). Phylogenetic analysis revealed that the sequenced HMPV strains belonged to four sublineages, including A2b (1.9%), A2c (31.5%), B1 (50.0%), and B2 (16.7%). After adjusting for all meteorological factors, sunshine duration was inversely correlated with the HMPV-positive rate. CONCLUSION HMPV is an important respiratory pathogen that causes acute respiratory tract infections in children in southern China, particularly in children ≤5 years old. The prevalence peak of HMPV in this area appeared in spring, and the predominant subtype was B1. Meteorological factors, especially long sunshine duration, might decrease the HMPV prevalence.
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Affiliation(s)
- Hengming Ye
- School of Public Health, Sun Yat-sen University, Guangzhou, China; Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, China; Public Health Service Center of Bao'an District, Shenzhen, China
| | - Shuqing Zhang
- Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, China; Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Kexin Zhang
- School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Yizhe Li
- School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Delin Chen
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yongyao Tan
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Linyue Liang
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Minjie Liu
- School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Jingyao Liang
- School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Shu An
- Department of Laboratory Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jueheng Wu
- Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, China; Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Xun Zhu
- Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, China; Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Mengfeng Li
- Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, China; Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China; Cancer Institute, Southern Medical University, Guangzhou, China
| | - Zhenjian He
- School of Public Health, Sun Yat-sen University, Guangzhou, China; Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, China.
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Otomaru H, Nguyen HAT, Vo HM, Toizumi M, Le MN, Mizuta K, Moriuchi H, Bui MX, Dang DA, Yoshida LM. A decade of human metapneumovirus in hospitalized children with acute respiratory infection: molecular epidemiology in central Vietnam, 2007-2017. Sci Rep 2023; 13:15757. [PMID: 37735242 PMCID: PMC10514255 DOI: 10.1038/s41598-023-42692-z] [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: 03/30/2023] [Accepted: 09/13/2023] [Indexed: 09/23/2023] Open
Abstract
Human metapneumovirus (hMPV) can cause severe acute respiratory infection (ARI). We aimed to clarify the clinical and molecular epidemiological features of hMPV. We conducted an ARI surveillance targeting hospitalized children aged 1 month to 14 years in Nha Trang, Vietnam. Nasopharyngeal swabs were tested for respiratory viruses with PCR. We described the clinical characteristics of hMPV patients in comparison with those with respiratory syncytial virus (RSV) and those with neither RSV nor hMPV, and among different hMPV genotypes. Among 8822 patients, 278 (3.2%) were hMPV positive, with a median age of 21.0 months (interquartile range: 12.7-32.5). Among single virus-positive patients, hMPV cases were older than patients with RSV (p < 0.001) and without RSV (p = 0.003). The proportions of clinical pneumonia and wheezing in hMPV patients resembled those in RSV patients but were higher than in non-RSV non-hMPV patients. Seventy percent (n = 195) were genotyped (A2b: n = 40, 20.5%; A2c: n = 99, 50.8%; B1: n = 37, 19%; and B2: n = 19, 9.7%). The wheezing frequency was higher in A2b patients (76.7%) than in those with other genotypes (p = 0.033). In conclusion, we found a moderate variation in clinical features among hMPV patients with various genotypes. No seasonality was observed, and the multiple genotype co-circulation was evident.
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Affiliation(s)
- Hirono Otomaru
- Department of Pediatric Infectious Diseases, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Hien Anh Thi Nguyen
- Department of Bacteriology, National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
| | - Hien Minh Vo
- Department of Pediatrics, Khanh Hoa General Hospital, Nha Trang, Vietnam
| | - Michiko Toizumi
- Department of Pediatric Infectious Diseases, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Minh Nhat Le
- Antimicrobial Resistance Research Centre, National Institute of Infectious Disease (NIID), Sinjuku, Japan
- Tay Nguyen Institute of Science Research, Vietnam Academy of Science and Technology (VAST), Da Lat, Vietnam
| | - Katsumi Mizuta
- Yamagata Prefectural Institute of Public Health, Yamagata, Japan
| | - Hiroyuki Moriuchi
- Department of Pediatrics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Minh Xuan Bui
- Khanh Hoa Health Service Department, Nha Trang, Vietnam
| | - Duc Anh Dang
- National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
| | - Lay-Myint Yoshida
- Department of Pediatric Infectious Diseases, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
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Wei T, Wang C, Ma F, Guo J, Chen A, Huang Y, Xie Z, Zheng L. Whole genome sequencing and evolution analyses of Human metapneumovirus. Virus Genes 2023:10.1007/s11262-023-02001-2. [PMID: 37150780 PMCID: PMC10164418 DOI: 10.1007/s11262-023-02001-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 04/24/2023] [Indexed: 05/09/2023]
Abstract
Human metapneumovirus (HMPV) is a major pathogen of acute respiratory tract infections (ARTIs) in children. Whole genome sequence analyses could help understand the evolution and transmission events of this virus. In this study, we sequenced HMPV whole genomes to improve the identification of molecular epidemiology in Beijing, China. Nasopharyngeal aspirates of hospitalized children aged < 14 years old with ARTIs were screened for HMPV infection using qPCR. Fourteen pairs of overlapping primers were used to amplify whole genome sequences of HMPV from positive samples with high viral loads. The epidemiology of HMPV was analysed and 27 HMPV whole genome sequences were obtained. Sequence identity and the positional entropy analyses showed that most regions of HMPV genome are conserved, whereas the G gene contained many variations. Phylogenetic analysis identified 25 HMPV sequences that belonged to a newly defined subtype A2b1; G gene sequences from 24 of these contained a 111-nucleotide duplication. HMPV is an important respiratory pathogen in paediatric patients. The new subtype A2b1 with a 111-nucleotide duplication has become predominate in Beijing, China.
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Affiliation(s)
- Tianli Wei
- Department of Pediatrics, Beijing Friendship Hospital, Capital Medical University, No. 95 Yong-An St., Xi-Cheng Dist., Beijing, 100050, China
| | - Chao Wang
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, No. 100 Ying-Xin St., Xi-Cheng Dist., Beijing, 100052, China
| | - Fenlian Ma
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, No. 100 Ying-Xin St., Xi-Cheng Dist., Beijing, 100052, China
| | - Jianqiang Guo
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, No. 100 Ying-Xin St., Xi-Cheng Dist., Beijing, 100052, China
| | - Aijun Chen
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, No. 100 Ying-Xin St., Xi-Cheng Dist., Beijing, 100052, China
| | - Yiman Huang
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, No. 100 Ying-Xin St., Xi-Cheng Dist., Beijing, 100052, China
| | - Zhiping Xie
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, No. 100 Ying-Xin St., Xi-Cheng Dist., Beijing, 100052, China.
| | - Lishu Zheng
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, No. 100 Ying-Xin St., Xi-Cheng Dist., Beijing, 100052, China.
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Parida P, N S, E R S, Jagadesh A, Marate S, Govindakaranavar A. The emergence of human metapneumovirus G gene duplication in hospitalized patients with respiratory tract infection, India, 2016-2018. Mol Biol Rep 2023; 50:1109-1116. [PMID: 36399244 PMCID: PMC9889522 DOI: 10.1007/s11033-022-08092-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 11/04/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Human metapneumovirus (HMPV) belongs to the family Pneumoviridae. It is one of the emerging respiratory viruses causing both upper and lower respiratory tract illnesses. HMPV has two genotypes: A and B. These genotypes are classified into lineage A1, A2, B1 and B2. Lineage-A2 is further classified as A2a, A2b and A2c. Similarly, B2 is classified as B2a and B2b. Studies have shown the circulation of A2b, B1 and B2 lineages in India. However, a limited amount of data is available on the current circulating genotypes of HMPV in India. METHODS Throat swab samples positive for HMPV by real-time RT- PCR, archived at Manipal Institute of Virology as a part of a hospital-based acute febrile illness surveillance study, was used from April 2016 to August 2018 by purposive sampling method. We performed the conventional reverse transcriptase-polymerase chain reaction for twenty samples targeting the G gene and then subjected them to sequencing. Phylogenetic analysis was done using MEGA X software by the Maximum Likelihood method. RESULTS All the twenty sequences belonged to the A2c subgroup. Phylogenetic analysis showed that strains from the study have genetic relation with circulating strains in Japan, China and Croatia. Seven out of the twenty sequences showed 180-nucleotide duplication and eleven sequences showed 111-nucleotide duplication. Two sequences did not show any duplications. CONCLUSION In the current study, we report that A2c is the sub-lineage in India from April 2016 to August 2018. This study is the first retrospective study reporting the circulation of the A2c sub-lineage among adults in India with 180- and 111-nucleotide duplications in the G gene of human metapneumovirus.
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Affiliation(s)
- Preetiparna Parida
- Manipal Institute of Virology (MIV), Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Sudheesh N
- Manipal Institute of Virology (MIV), Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India.
| | - Sanjay E R
- Manipal Institute of Virology (MIV), Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Anitha Jagadesh
- Manipal Institute of Virology (MIV), Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Srilatha Marate
- Manipal Institute of Virology (MIV), Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Arunkumar Govindakaranavar
- Manipal Institute of Virology (MIV), Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India.
- , 2-49, Vaikathu, Maratithota Road, MooduAthradi, Athradi PO, Udupi, Karnataka, 576107, India.
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Cong S, Wang C, Wei T, Xie Z, Huang Y, Tan J, Chen A, Ma F, Zheng L. Human metapneumovirus in hospitalized children with acute respiratory tract infections in Beijing, China. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2022; 106:105386. [PMID: 36372116 DOI: 10.1016/j.meegid.2022.105386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/13/2022]
Abstract
BACKGROUND This study aims to described the epidemiology and genotypic diversity of Human metapneumovirus (HMPV) and the impact of SARS-CoV-2 on the prevalence of HMPV in hospitalized children with Acute respiratory tract infections (ARTIs) in Beijing, China. METHODS From April 2018 to March 2019 and from September 2020 to August 2021, nasopharyngeal aspirates (NPAs) from hospitalized children with ARTIs in Beijing were collected and subjected to real-time polymerase chain reaction tests for HMPV. Then genotyping, detection of 15 common respiratory viruses and clinical characteristics were analyzed on HMPV positive samples. RESULTS 7.9% (124/1572) enrolled pediatric patients were identified as having HMPV infection, and the majority of children under the age of 5 (78.2%, 92/124), From April 2018 to March 2019. The detection rate of HMPV in spring and winter is significantly higher than that in summer and autumn. The co-infection rate were 37.1% (46/124), the most common co-infected virus were parainfluenza virus type 3 (HPIV-3). The main diagnosis of HMPV infection was pneumonia (92.7%,115/124), most patient have cough and fever. Of 78 HMPV-positive specimens, A2b (82.1%,64/78) were the main epidemic subtypes. Hospitalized children with HMPV genotype A infection had a higher viral load compared to genotype B. During the COVID-19 outbreak, Among 232 samples, only 4 cases were HMPV-positive. After statistical test, the detection rate of HMPV during the COVID-19 pandemic has decreased significantly compared with that before the epidemic (p = 0.001). CONCLUSIONS HMPV is an important cause of ARTIs in children under 5 years old. The epidemic peak is generally in winter and spring, and the A2b subtype is the most common. However, under the prevention and control of the COVID-19 pandemic, the HMPV infection of hospitalized children with ARTIs has decreased significantly.
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Affiliation(s)
- Shanshan Cong
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China; Department of Toxicology, School of Public Health, China Medical University, Shenyang, China
| | - Chao Wang
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Tianli Wei
- Department of Pediatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Zhiping Xie
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Yiman Huang
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Jingjing Tan
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China; Department of Toxicology, School of Public Health, China Medical University, Shenyang, China
| | - Aijun Chen
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Fenlian Ma
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China.
| | - Lishu Zheng
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China; Center for Biosafety Mega-Science, Chinese Academy of Sciences, Beijing, China.
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Du Y, Li W, Guo Y, Li L, Chen Q, He L, Shang S. Epidemiology and genetic characterization of human metapneumovirus in pediatric patients from Hangzhou China. J Med Virol 2022; 94:5401-5408. [PMID: 35871601 DOI: 10.1002/jmv.28024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 07/08/2022] [Accepted: 07/21/2022] [Indexed: 12/15/2022]
Abstract
Human metapneumovirus (HMPV), which is distributed worldwide, is a significant viral respiratory pathogen responsible for causing acute respiratory tract infections (ARTIs) in children. The aim of the present study was to investigate the epidemiological and genetic characteristics of HMPV in pediatric patients in Hangzhou China following the peak of onset of coronavirus disease 2019 (COVID-19). A total of 1442 throat swabs were collected from the pediatric patients with a diagnosis of ARTI from November 2020 to March 2021. The following viruses were detected by real-time polymerase chain reaction analysis: HMPV, RSV, adenovirus, hPIV1-3, influenza A, and influenza B. A two-step method was used to amplify the F genes of the HMPV-positive samples. Following sequencing, phylogenetic analyses were conducted using the MEGA version 7 software package. Among the 1442 samples, 103 (7.14%) were positive for HMPV. No significant differences were observed in the gender distribution. The highest incidence of HMPV occurred in children older than 6 years and the lowest was noted in children younger than 6 months. Lower respiratory tract infections were diagnosed at a higher rate than upper respiratory tract infections in HMPV-infected children. Only 10 HMPV-infected children (5.41%) were inpatients compared with 93 outpatients (7.39%). Co-infection was observed in 31 HMPV-positive samples including 24 samples of double infection and seven samples of triple infection. A total of 61F gene fragments of HMPV, which were approximately 727 bp in length were successfully sequenced. All the HMPVs belonged to the genotype B and were clustered into subgenotypes B1 (1.6%, 1/61) and B2 (98.4%, 60/61). A total of four specific amino acid substitutions were noted as follows: aa280, aa296, aa392, and aa396. These substitutions were present between sequences derived from the subgenotypes B1 and B2 in the fusion open reading frame from position 244 to 429. In conclusion, the present study provided significant information regarding the epidemiological and genetic characteristics of HMPV in children living in Hangzhou. Following the first peak of the COVID-19 pandemic, HMPV was considered an important viral respiratory pathogen present in children with ARTI.
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Affiliation(s)
- Yun Du
- Department of Respiratory Medicine, Jiangxi Provincial Children's Hospital, Nanchang, Jiangxi, China
| | - Wei Li
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, Zhejiang, China
| | - Yajun Guo
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, Zhejiang, China
| | - Lin Li
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, Zhejiang, China
| | - Qiang Chen
- Department of Respiratory Medicine, Jiangxi Provincial Children's Hospital, Nanchang, Jiangxi, China
| | - Lin He
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, Zhejiang, China
| | - Shiqiang Shang
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, Zhejiang, China
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Zhao H, Feng Q, Feng Z, Zhu Y, Ai J, Xu B, Deng L, Sun Y, Li C, Jin R, Shang Y, Chen X, Xu L, Xie Z. Clinical characteristics and molecular epidemiology of human metapneumovirus in children with acute lower respiratory tract infections in China, 2017 to 2019: A multicentre prospective observational study. Virol Sin 2022; 37:874-882. [PMID: 36007839 PMCID: PMC9797368 DOI: 10.1016/j.virs.2022.08.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 06/21/2022] [Indexed: 01/01/2023] Open
Abstract
Human metapneumovirus (HMPV) infection is one of the leading causes of hospitalization in young children with acute respiratory illness. In this study, we prospectively collected respiratory tract samples from children who were hospitalized with acute lower respiratory tract infection in six hospitals in China from 2017 to 2019. HMPV was detected in 145 out of 2733 samples (5.3%) from the hospitalized children. The majority of HMPV-positive children were under the age of two (67.6%), with a median age of one year. HMPV can independently cause acute lower respiratory tract infection in young children, while all patients showed mild clinical symptoms. Of all the co-infected patients, HMPV was most commonly detected with enterovirus (EV) or rhinovirus (RhV) (38.0%, followed by respiratory syncytial virus (RSV) (32.0%). The highest detection rate occurred from March to May in both northern and southern China. Out of 145 HMPV positive samples, 48 were successfully typed, of which 36 strains were subgrouped into subtypes A2c (75%), eight strains were included in subtype B1 (16.7%), and four strains were included in subtype B2 (8.3%). Moreover, 16 A2c strains contained 111-nucleotide duplications in the G gene. Twenty-seven complete HMPV genomes were successfully obtained, and 25 (92.6%) strains belonged to subtype A2c, whereas one strain was included in subgroup B1 and another was included in subgroup B2. A total of 277 mutations were observed in the complete genomes of 25 A2c strains. All results presented here improve our understanding of clinical characteristics and molecular epidemiology of HMPV infection in children.
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Affiliation(s)
- Hongwei Zhao
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China,Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, 2019RU016, China
| | - Qianyu Feng
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China,Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, 2019RU016, China
| | - Ziheng Feng
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China,Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, 2019RU016, China
| | - Yun Zhu
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China,Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, 2019RU016, China
| | - Junhong Ai
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China,Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, 2019RU016, China
| | - Baoping Xu
- Department of Respiratory Diseases I, Beijing Children's Hospital, Capital Medical University, National Clinical Research Center for Respiratory Diseases, National Center for Children's Health, Beijing, 100045, China
| | - Li Deng
- Guangzhou Women and Children's Medical Center, Guangzhou, 510623, China
| | - Yun Sun
- Yinchuan Maternal and Child Health Hospital, Yinchuan, 750000, China
| | - Changchong Li
- The 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Rong Jin
- Guiyang Women and Children Healthcare Hospital, Guiyang, 550003, China
| | - Yunxiao Shang
- Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Xiangpeng Chen
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China,Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, 2019RU016, China
| | - Lili Xu
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China,Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, 2019RU016, China,Corresponding author.
| | - Zhengde Xie
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China,Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, 2019RU016, China
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12
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Liu Z, Xie Z, Sun R, Zhang F, Xu W, Wang Z, Zhang Y. The A2c 111nt-dup Variants of Human Metapneumovirus Predominantly Circulating in Qingdao, China, during 2018 and 2019. J Med Virol 2022; 94:4301-4308. [PMID: 35656887 DOI: 10.1002/jmv.27888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/13/2022] [Accepted: 05/20/2022] [Indexed: 11/12/2022]
Abstract
BACKGROUND Human metapneumovirus (HMPV) plays an important role in acute respiratory tract infections, especially in children. We investigated the epidemiology of HMPV associated with acute respiratory tract infections (ARTIs) among pediatric inpatients and identified HMPV genetic variations in Qingdao, China, from January 2018 to June 2019. METHODS HMPV-positive samples were identified from throat swabs by multiplex real-time RT-PCR. The G gene sequences of HMPV were obtained, followed by phylogenetic analysis. RESULTS As a result, 71 out of 1051 (6.76%) patients were HMPV positive, and the HMPV-positive rate in children under 5 years of age was three times higher than that in those aged 5-17 years. The epidemic season of HMPV was in spring, with a peak mainly in March. Thirty-two nucleotide sequences of the HMPV G gene successfully obtained were clustered into 3 genotypes, A2c (25/32, 78.13%), B1 (3/32, 9.38%) and B2 (4/32, 12.50%). In addition, 76% (19/25) of A2c viruses were identified as the emerging A2c111nt-dup variants, which were predominantly circulating among pediatric inpatients with ARTIs between January 2018 and June 2019 in Qingdao. CONCLUSIONS The emerging A2c111nt-dup variants have spread between countries and cities and might spread more widely in the future. Further prevalence monitoring of this duplication variant is needed to clarify the potentially expanding transmission and to provide a scientific basis for disease control and vaccine development. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ziran Liu
- Qingdao Municipal Center for Disease Control and Prevention, Qingdao, Shandong, People's Republic of China
| | - Zhibo Xie
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing, People's Republic of China
| | - Rui Sun
- Qingdao Municipal Center for Disease Control and Prevention, Qingdao, Shandong, People's Republic of China
| | - Feng Zhang
- Qingdao Municipal Center for Disease Control and Prevention, Qingdao, Shandong, People's Republic of China
| | - Wenbo Xu
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing, People's Republic of China
| | - Zhaoguo Wang
- Qingdao Municipal Center for Disease Control and Prevention, Qingdao, Shandong, People's Republic of China
| | - Yan Zhang
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing, People's Republic of China
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13
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Global Extension and Predominance of Human Metapneumovirus A2 Genotype with Partial G Gene Duplication. Viruses 2022; 14:v14051058. [PMID: 35632799 PMCID: PMC9146545 DOI: 10.3390/v14051058] [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: 03/26/2022] [Revised: 04/29/2022] [Accepted: 05/12/2022] [Indexed: 12/10/2022] Open
Abstract
Human metapneumovirus (HMPV) is an important respiratory pathogen and is divided in two main groups (A and B). HMPV strains with partial duplications (111-nt and 180-nt duplication) of the G gene have been reported in recent years. Since the initial reports, viruses with these characteristics have been reported in several countries. We analyzed all complete HMPV G gene ectodomain sequences available at GenBank to determine if viruses with 111-nt or 180-nt duplication have become the leading HMPV strains worldwide, and to describe their temporal and geographic distribution. We identified 1462 sequences that fulfilled study criteria (764 HMPV A and 698 HMPV B) reported from 37 countries. The most frequent HMPV A genotype was A2b2 (n = 366), and the most frequent B genotype was B2 (n = 374). A total of 84 sequences contained the 111-nt duplication, and 90 sequences contained the 180-nt duplication. Since 2016, viruses with a partial duplication comprise the most frequent HMPV A sequences globally and have displaced other HMPV A viruses in Asia, Europe, and South America; no sequences of viruses with partial duplication have been reported in North America or Africa so far. Continued surveillance of HMPV is required to identify the emergence and spread of epidemiologically relevant variants.
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Zoonotic Origins of Human Metapneumovirus: A Journey from Birds to Humans. Viruses 2022; 14:v14040677. [PMID: 35458407 PMCID: PMC9028271 DOI: 10.3390/v14040677] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/23/2022] [Accepted: 03/23/2022] [Indexed: 01/13/2023] Open
Abstract
Metapneumoviruses, members of the family Pneumoviridae, have been identified in birds (avian metapneumoviruses; AMPV’s) and humans (human metapneumoviruses; HMPV’s). AMPV and HMPV are closely related viruses with a similar genomic organization and cause respiratory tract illnesses in birds and humans, respectively. AMPV can be classified into four subgroups, A–D, and is the etiological agent of turkey rhinotracheitis and swollen head syndrome in chickens. Epidemiological studies have indicated that AMPV also circulates in wild bird species which may act as reservoir hosts for novel subtypes. HMPV was first discovered in 2001, but retrospective studies have shown that HMPV has been circulating in humans for at least 50 years. AMPV subgroup C is more closely related to HMPV than to any other AMPV subgroup, suggesting that HMPV has evolved from AMPV-C following zoonotic transfer. In this review, we present a historical perspective on the discovery of metapneumoviruses and discuss the host tropism, pathogenicity, and molecular characteristics of the different AMPV and HMPV subgroups to provide increased focus on the necessity to better understand the evolutionary pathways through which HMPV emerged as a seasonal endemic human respiratory virus.
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15
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Puerta-Guardo H. Editorial: From Pathogenic Infections to Inflammation and Disease - the Tumultuous Road of the 'Cytokine Storm'. Front Cell Infect Microbiol 2022; 11:827151. [PMID: 35083169 PMCID: PMC8785243 DOI: 10.3389/fcimb.2021.827151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 12/13/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- Henry Puerta-Guardo
- Collaborative Unit for Entomological Bioassays, Campus of Biological Sciences and Agriculture, Autonomous University of Yucatan, Merida, Mexico.,Virology Laboratory, Center for Research "Dr. Hideyo Noguchi", Autonomous University of Yucatan, Merida, Mexico
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16
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Tang X, Dai G, Wang T, Sun H, Jiang W, Chen Z, Yan Y. Comparison of the clinical features of human bocavirus and metapneumovirus lower respiratory tract infections in hospitalized children in Suzhou, China. Front Pediatr 2022; 10:1074484. [PMID: 36704137 PMCID: PMC9871608 DOI: 10.3389/fped.2022.1074484] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 12/21/2022] [Indexed: 01/12/2023] Open
Abstract
OBJECTIVE We compared the clinical data of hospitalized children with lower respiratory tract infections caused by human bocavirus (HBoV) and human metapneumovirus (hMPV). METHODS In total, 8,430 children admitted to the Department of Respiration, Children's Hospital of Soochow University for lower respiratory tract infections from January 2017 to October 2021 were enrolled. Seven common respiratory viruses, including respiratory syncytial virus, influenza virus A, influenza virus B, parainfluenza virus (PIV) I, PIV II, PIV III, and adenovirus, were detected by direct immunofluorescence assay, whereas human rhinovirus and hMPV were detected by reverse transcription-polymerase chain reaction. Mycoplasma pneumoniae (MP) and HBoV were detected by real-time fluorescence quantitative polymerase chain reaction. Bacteria was detected in blood, nasopharyngeal secretion, bronchoalveolar lavage specimen or pleural fluid by culture. In parallel, MP was detected by enzyme-linked immunosorbent assay. In addition, we performed metagenomic testing of alveolar lavage fluid from some of the patients in our study. RESULTS The detection rate of HBoV was 6.62% (558/8430), whereas that of hMPV was 2.24% (189/ 8430). The detection rate of HBoV was significantly higher in children aged 1 to <3 years than in other age groups, but there were no significant differences in positivity rates for hMPV by age. Before 2020, the incidence of HBoV infection peaked in summer and autumn, whereas that of hMPV peaked in spring. The epidemiology of both HBoV and hMPV has changed because of the impact of the novel coronavirus. Among the positive cases, the HBoV mixed infection rate was 51.6%, which was similar to that for hMPV mixed infection (44.4%). Comparing clinical characteristics between HBoV and hMPV single infection, the median age of children was 17 months in the HBoV group and 11 months in the hMPV group. In the HBoV single infection group, 31 patients (11.5%) had pulse oxygen saturation of less than 92% on admission, 47 (17.4%) had shortness of breath, and 26 (9.6%) presented with dyspnea. Meanwhile, four patients (3.8%) in the hMPV single infection group had pulse oxygen saturation of less than 92% on admission, eight (7.6%) displayed shortness of breath, and three (2.9%) had dyspnea. The proportion of patients requiring mechanical ventilation and the rate of PICU admission were higher in the HBoV group than in the hMPV group. CONCLUSION The prevalence of HBoV infection is higher than that of hMPV infection in children with lower respiratory tract infection in Suzhou, and HBoV is more likely to cause severe infection than hMPV. Public health interventions for COVID-19 outbreaks have affected the prevalence of HBoV and hMPV.
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Affiliation(s)
- Xifeng Tang
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China.,Department of Pediatrics, The First People's Hospital of Yan Cheng, Yancheng, China
| | - Ge Dai
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Ting Wang
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Huiming Sun
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Wujun Jiang
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Zhengrong Chen
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Yongdong Yan
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
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Ademhan Tural D, Yalcin E, Emiralioglu N, Ozsezen B, Alp A, Sunman B, Gozmen O, Dogru D, Ozcelik U, Kiper N. Human bocavirus and human metapneumovirus in children with lower respiratory tract infections: Effects on clinical, microbiological features and disease severity . Pediatr Int 2022; 64:e15102. [PMID: 35616205 DOI: 10.1111/ped.15102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 08/10/2021] [Accepted: 12/14/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND We aimed to compare the clinical findings of human bocavirus (HBoV) and human metapneumovirus (HMPV) infections, and to analyze the effects of coinfections on clinical features and disease severity in children with HBoV and HMPV infections. METHODS Data were collected from 125 children with lower respiratory tract infections due to HBoV or HMPV, detected from nasal swap by real-time polymerase chain reaction (PCR) during the period from January, 2013 to December, 2017. In total, there were 101 HBoV (group 1) and 23 HMPV (group 2) infections in our data. The patients were further divided into four subgroups according to the coinfection status: HoBV only (subgroup 1, n = 41), HMPV only (subgroup 2, n = 19), HBoV and coinfection with other respiratory viruses (subgroup 3, n = 60), and HMPV and coinfection with other respiratory viruses (subgroup 4, n = 4). RESULTS The majority (88.8%) of the patients were aged 5 years or younger. Coinfections with other respiratory viruses were significantly more common in group 1 (P = 0.001). Among patients who had nosocomial pneumonia, patients with HBoV infections had significantly longer mean length of hospital stay (LOS) than those with HMPV infections (P = 0.032). The hospitalization and antibiotic requirements were significantly higher in subgroup 1 than subgroup 3 (P = 0.005, 0.039, resp.) According to the logistic regression analyses, the LOS increased by 21.7 times with HBoV infections (P = 0.006). CONCLUSIONS Human bocavirus and HMPV infections are serious pathogens mostly seen in children and usually requiring hospitalization regardless of co-infection status. The HBoV infections caused longer LOS than the HMPV infections in patients with nosocomial infections.
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Affiliation(s)
- Dilber Ademhan Tural
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Ebru Yalcin
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Nagehan Emiralioglu
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Beste Ozsezen
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Alpaslan Alp
- Department of Medical Microbiology, School of Medicine, Hacettepe University, Ankara, Turkey
| | - Birce Sunman
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Onur Gozmen
- Department of Pediatrics, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Deniz Dogru
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Ugur Ozcelik
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Nural Kiper
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
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Molecular typing and epidemiologic profiles of human metapneumovirus infection among children with severe acute respiratory infection in Huzhou, China. Mol Biol Rep 2021; 48:7697-7702. [PMID: 34665397 PMCID: PMC8523348 DOI: 10.1007/s11033-021-06776-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/22/2021] [Indexed: 11/06/2022]
Abstract
Background Human metapneumovirus (hMPV) is one of the important pathogens in infant respiratory tract infection. However, the molecular epidemiology of hMPV among children < 14 years of age hospitalized with severe acute respiratory infection (SARI) is unclear. We investigated the hMPV infection status and genotypes of children hospitalized with SARI from January 2016 to December 2020 in Huzhou, China. Methods A nasopharyngeal flocked swab, nasal wash, or nasopharyngeal swab/or opharyngeal swab combination sample was collected from children with SARI in Huzhou from January 2016 to December 2020. Quantitative reverse transcription-polymerase chain reaction was performed to detect hMPV RNA. The hMPV F gene was amplified and sequenced, followed by analysis using MEGA software (ver. 7.0). Epidemiological data were analyzed using Microsoft Excel 2010 and SPSS (ver. 22.0) software. Results A total of 1133 children with SARI were recruited from 2016 to 2020. Among them, 56 (4.94%) were positive for hMPV-RNA. Children < 5 years of age accounted for 85.71% of the positive cases. The hMPV incidence was high in spring and winter, especially in December and January to March. Phylogenetic analysis of the F-gene sequences of 28 hMPV strains showed that the A1, B1, and B2 genotypes were prevalent in Huzhou, and the dominant hMPV genotype varied according to surveillance year. Conclusions HMPV is an important respiratory pathogen in children in Huzhou, with a high incidence in winter and spring in children < 5 years of age. In this study, genotypes A1, B1, and B2 were the most prevalent.
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Xie Z, Xu J, Ren Y, Cui A, Wang H, Song J, Zhang Q, Hu M, Xu W, Zhang Y. Emerging Human Metapneumovirus Gene Duplication Variants in Patients with Severe Acute Respiratory Infection, China, 2017-2019. Emerg Infect Dis 2021; 27:275-277. [PMID: 33350918 PMCID: PMC7774569 DOI: 10.3201/eid2701.201043] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
We detected human metapneumovirus (HMPV) in 72 (7.1%) of 1,021 patients hospitalized with severe acute respiratory infection in Luohe, China, during 2017–2019. We detected HMPV most frequently in young children and less often in adults. HMPV genotype A2c variants 111 nt and 180 nt duplications predominated, demonstrating their continuing geographic spread.
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An Amplicon-Based Approach for the Whole-Genome Sequencing of Human Metapneumovirus. Viruses 2021; 13:v13030499. [PMID: 33803613 PMCID: PMC8003040 DOI: 10.3390/v13030499] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/15/2021] [Accepted: 03/17/2021] [Indexed: 11/29/2022] Open
Abstract
Human metapneumovirus (HMPV) is an important cause of upper and lower respiratory tract disease in individuals of all ages. It is estimated that most individuals will be infected by HMPV by the age of five years old. Despite this burden of disease, there remain caveats in our knowledge of global genetic diversity due to a lack of HMPV sequencing, particularly at the whole-genome scale. The purpose of this study was to create a simple and robust approach for HMPV whole-genome sequencing to be used for genomic epidemiological studies. To design our assay, all available HMPV full-length genome sequences were downloaded from the National Center for Biotechnology Information (NCBI) GenBank database and used to design four primer sets to amplify long, overlapping amplicons spanning the viral genome and, importantly, specific to all known HMPV subtypes. These amplicons were then pooled and sequenced on an Illumina iSeq 100 (Illumina, San Diego, CA, USA); however, the approach is suitable to other common sequencing platforms. We demonstrate the utility of this method using a representative subset of clinical samples and examine these sequences using a phylogenetic approach. Here we present an amplicon-based method for the whole-genome sequencing of HMPV from clinical extracts that can be used to better inform genomic studies of HMPV epidemiology and evolution.
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Covián C, Ríos M, Berríos-Rojas RV, Bueno SM, Kalergis AM. Induction of Trained Immunity by Recombinant Vaccines. Front Immunol 2021; 11:611946. [PMID: 33584692 PMCID: PMC7873984 DOI: 10.3389/fimmu.2020.611946] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/24/2020] [Indexed: 01/24/2023] Open
Abstract
Vaccines represent an important strategy to protect humans against a wide variety of pathogens and have even led to eradicating some diseases. Although every vaccine is developed to induce specific protection for a particular pathogen, some vaccine formulations can also promote trained immunity, which is a non-specific memory-like feature developed by the innate immune system. It is thought that trained immunity can protect against a wide variety of pathogens other than those contained in the vaccine formulation. The non-specific memory of the trained immunity-based vaccines (TIbV) seems beneficial for the immunized individual, as it may represent a powerful strategy that contributes to the control of pathogen outbreaks, reducing morbidity and mortality. A wide variety of respiratory viruses, including respiratory syncytial virus (hRSV) and metapneumovirus (hMPV), cause serious illness in children under 5 years old and the elderly. To address this public health problem, we have developed recombinant BCG vaccines that have shown to be safe and immunogenic against hRSV or hMPV. Besides the induction of specific adaptive immunity against the viral antigens, these vaccines could generate trained immunity against other respiratory pathogens. Here, we discuss some of the features of trained immunity induced by BCG and put forward the notion that recombinant BCGs expressing hRSV or hMPV antigens have the capacity to simultaneously induce specific adaptive immunity and non-specific trained immunity. These recombinant BCG vaccines could be considered as TIbV capable of inducing simultaneously the development of specific protection against hRSV or hMPV, as well as non-specific trained-immunity-based protection against other pathogenic viruses.
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Affiliation(s)
- Camila Covián
- Millenium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mariana Ríos
- Millenium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Roslye V. Berríos-Rojas
- Millenium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M. Bueno
- Millenium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M. Kalergis
- Millenium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Endocrinología, Facultad de Medicina, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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