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Kong W, Wang Q, Zhuo J, Zhuang X. The prevalence of Mycoplasma pneumoniae in children in Shandong, China before, during, and after COVID-19. Front Pediatr 2024; 12:1479311. [PMID: 39722766 PMCID: PMC11668564 DOI: 10.3389/fped.2024.1479311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2024] [Accepted: 11/26/2024] [Indexed: 12/28/2024] Open
Abstract
Background The multifaceted non-pharmaceutical interventions after the outbreak of the COVID-19 pandemic not only limited the spread of SARS-CoV2 but also had an impact on the prevalence of other pathogens. Methods In this work, we retrospectively analyzed the epidemiological characteristics of Mycoplasma pneumoniae (MP) in children before and after the COVID-19 pandemic in Shandong, China. From 2019-2023, there were 29,558 visits of pediatric patients (1 month to 15 years old) with respiratory tract infection (RTI) symptoms at a tertiary hospital in Shandong Province, 10,039 of which were positive for MP according to a passive agglutination assay of the serum IgM antibodies. Conduct statistical analysis and epidemiological investigation of the test results categorized by years, months, ages, genders and clinical diagnosis. Utilize the χ 2 test to analyze the differences in incidence rates. Results Compared to 2019, the number of visits and the positive cases both decreased substantially in 2020, but the positivity rate increased. Both 2021 and 2023 were peak years of MP infection. The peak seasons of MP infection were fall and winter, female patients had higher positivity rate than male patients, and school-age children (>6 years) had higher positivity rate than the children in other age groups. In terms of the clinical manifestation of MP infection, compared to 2019, in 2023, the proportion of bronchopneumonia and upper RTI decreased significantly. Conclusions The ongoing surveillance of the epidemiology of MP is critical for effective disease management and provides a basis for diagnosis, treatment, and the corresponding prevention and control strategies. This work for the first time characterized the epidemiology of MP in Shandong before and after the COVID-19 pandemic, thus providing valuable information for monitoring and preventing MP infection in the post-epidemic era.
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Tahmasebi H, Babaeizad A, Mohammadlou M, Alibabaei F, Banihashemian SZ, Eslami M. Reemergence of Mycoplasma pneumoniae disease: Pathogenesis and new approaches. Microb Pathog 2024; 196:106944. [PMID: 39284519 DOI: 10.1016/j.micpath.2024.106944] [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: 03/15/2024] [Revised: 09/12/2024] [Accepted: 09/13/2024] [Indexed: 09/20/2024]
Abstract
The review discusses the recurrence of Mycoplasma pneumoniae (M. pneumoniae), a bacterium causing atypical pneumonia, primarily affecting Europe and Asia due to climate change, immunity decline, antibiotic resistance, and genetic heterogeneity. The COVID-19 pandemic initially reduced M. pneumoniae cases due to preventative measures, but its reemergence suggests different transmission dynamics and exacerbates clinical severity with co-infections with other viruses. The pathogenicity of M. pneumoniae is attributed to its intracellular changes, toxin release, and adhesion processes, which can result in a variety of symptoms and problems. Antibiotics and immunomodulators are used in treatment, and attempts are being made to create vaccines. Effective management of its reappearance necessitates surveillance and preventative measures, especially in the context of co-infections and potential outbreaks. M. pneumoniae's resurgence highlights its reliance on a polarized cytoskeletal architecture for host cell attachment and pathogenicity through cytoadherence and cytotoxic agent synthesis. M. pneumoniae has returned even though the COVID-19 pandemic originally reduced incidence; this might be because of things like declining immunity and particular pathogenic characteristics. Meteorological factors like temperature and humidity, along with air quality, including pollutants like PM2.5 and NO2, increase susceptibility to environmental hazards. During the pandemic, non-pharmaceutical measures decreased transmission but did not eradicate the infection. Epidemics typically occur three to five years apart, emphasizing the need for ongoing study and observation. Antimicrobial resistance is a serious issue, necessitating caution and alternative therapies, especially in macrolides. COVID-19 pandemic lessons, such as mask use and hand hygiene, may help limit M. pneumoniae transmission.
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Affiliation(s)
- Hamed Tahmasebi
- School of Medicine, Shahroud University of Medical Sciences, Semnan, Iran
| | - Ali Babaeizad
- Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Maryam Mohammadlou
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Farnaz Alibabaei
- Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | | | - Majid Eslami
- Department of Bacteriology and Virology, Semnan University of Medical Sciences, Semnan, Iran.
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Ai L, Liu B, Fang L, Zhou C, Gong F. Comparison of Mycoplasma pneumoniae infection in children admitted with community acquired pneumonia before and during the COVID-19 pandemic: a retrospective study at a tertiary hospital of southwest China. Eur J Clin Microbiol Infect Dis 2024; 43:1213-1220. [PMID: 38613707 DOI: 10.1007/s10096-024-04824-9] [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: 02/11/2024] [Accepted: 04/03/2024] [Indexed: 04/15/2024]
Abstract
PURPOSE The COVID-19 pandemic has notably altered the infection dynamics of various pathogens. This study aimed to evaluate the pandemic's impact on the infection spectrum of Mycoplasma pneumoniae (M. pneumoniae) among children with community acquired pneumonia (CAP). METHODS We enrolled pediatric CAP patients admitted to a tertiary hospital in southwest China to compare the prevalence and characteristics of M. pneumoniae infections before (2018-2019) and during (2020-2022) the COVID-19 pandemic. Detection of M. pneumoniae IgM antibodies in serum were conducted using either indirect immunofluorescence or passive agglutination methods. RESULTS The study included 1505 M. pneumoniae-positive and 3160 M. pneumoniae-negative CAP patients. Notable findings were the higher age and frequency of pneumonia-associated symptoms in M. pneumoniae-positive patients, alongside a lower male proportion and fewer respiratory co-infections. The year 2019 saw a notable increase in M. pneumoniae infections compared to 2018, followed by a decline from 2020 to 2022. The COVID-19 pandemic period witnessed significant alterations in age distribution, male proportion, and co-infections with specific pathogens in both M. pneumoniae-positive and negative patients. The M. pneumoniae infections were predominantly seasonal, peaking in autumn and winter during 2018 and 2019. Although there was a sharp drop in February 2020, the infection still peaked in cold months of 2020 and 2021. However, the typical seasonal pattern was nearly absent in 2022. CONCLUSIONS The COVID-19 pandemic has markedly changed the infection landscape of M. pneumoniae in pediatric CAP patients, with shifts observed in infection rates, demographic profiles, co-infections, and seasonal patterns.
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Affiliation(s)
- Ling Ai
- Department of General Practice, Yongchuan Hospital of Chongqing Medical University, No. 439, Xuanhua Street, Chongqing, 402160, China
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China
- Central Laboratory, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China
| | - Beizhong Liu
- Central Laboratory, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China
- Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China
| | - Liang Fang
- Central Laboratory, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Chanjuan Zhou
- Central Laboratory, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Fang Gong
- Department of General Practice, Yongchuan Hospital of Chongqing Medical University, No. 439, Xuanhua Street, Chongqing, 402160, China.
- Central Laboratory, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China.
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, 402160, China.
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Zhang XB, He W, Gui YH, Lu Q, Yin Y, Zhang JH, Dong XY, Wang YW, Ye YZ, Xu H, Wang JY, Shen B, Gu DP, Wang LB, Wang Y. Current Mycoplasma pneumoniae epidemic among children in Shanghai: unusual pneumonia caused by usual pathogen. World J Pediatr 2024; 20:5-10. [PMID: 38231466 DOI: 10.1007/s12519-023-00793-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 12/21/2023] [Indexed: 01/18/2024]
Affiliation(s)
- Xiao-Bo Zhang
- Department of Respiratory Medicine, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China
| | - Wen He
- Department of Respiratory Medicine, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China
| | - Yong-Hao Gui
- State Key Laboratory of Genetic Engineering at School of Life Sciences, Institute of Reproduction & Development, Children's Hospital of Fudan University, Shanghai, China
| | - Quan Lu
- Department of Respiratory Medicine, Children's Hospital of Shanghai Jiao Tong University, Shanghai, China
| | - Yong Yin
- Department of Respiratory Medicine, Shanghai Children's Medical Center, Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Jian-Hua Zhang
- Department of Pediatric Respiratory, Xinhua Hospital, Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiao-Yan Dong
- Department of Respiratory Medicine, Children's Hospital of Shanghai Jiao Tong University, Shanghai, China
| | - Ying-Wen Wang
- Department of Nursing, Children's Hospital of Fudan University, Shanghai, China
| | - Ying-Zi Ye
- Department of Infectious Diseases, Children's Hospital of Fudan University, Shanghai, China
| | - Hong Xu
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China
| | - Jia-Yu Wang
- NHC Key Laboratory of Neonatal Diseases, Children's Hospital of Fudan University, Shanghai, China
| | - Bing Shen
- Shanghai Shenkang Hospital Development Center, Shanghai, China
| | - Dan-Ping Gu
- Center for Medical Quality Control Management of Shanghai, Shanghai, China
| | - Li-Bo Wang
- Department of Respiratory Medicine, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China.
| | - Yi Wang
- Department of Neurology, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China.
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Yang L, Zhang Y, Shen C, Lu Z, Hou T, Niu F, Liu R, Ning J, Wang Y. Clinical features and risk factors of plastic bronchitis caused by Mycoplasma pneumoniae pneumonia in children. BMC Pulm Med 2023; 23:468. [PMID: 37996853 PMCID: PMC10668422 DOI: 10.1186/s12890-023-02766-0] [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: 04/14/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023] Open
Abstract
BACKGROUND We analyzed the clinical characteristics of children with plastic bronchitis (PB) caused by Mycoplasma pneumoniae (MP) and explored its risk factors. METHODS We prospectively analyzed clinical data of children with MP pneumonia (MPP) treated with fiberoptic bronchoscopy (FB). Patients were classified into a PB and non-PB group. General information, clinical manifestations, laboratory tests, results of computed tomography scan, and FB findings were compared between groups. We conducted statistical analysis of risk factors for developing PB. RESULTS Of 1169 children who had MPP and were treated with FB, 133 and 1036 were in the PB and non-PB groups, respectively. There were no significant differences in sex, age, and incident season between groups (P > 0.05). The number of children in the PB group decreased during the COVID-19 pandemic. Compared with children in the non-PB group, those in the PB group had longer duration of hospitalization, increased levels of neutrophil (N), C-reactive protein (CRP), procalcitonin (PCT), D-dimer, lactate dehydrogenase (LDH), alanine transaminase (ALT) and aspartate transaminase (AST); lower levels of lymphocyte (L) and platelet (PLT); and higher incidence of lack of appetite, decreased breath sounds, single lobar infiltrate, pleural effusion, pericardial effusion, mucosal erosion and/or necrosis, and bronchial embolization. L levels and pleural effusion were identified as risk factors in multivariate logistic regression. CONCLUSIONS Children with PB caused by MPP had a strong and local inflammatory response. L levels and pleural effusion were independent risk factors of PB with MPP in children. Our findings will help clinicians identify potential PB in pediatric patients for early and effective intervention.
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Affiliation(s)
- Lei Yang
- Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, 272000, China
- Postdoctoral Mobile Station of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, 250399, China
| | - Yuyan Zhang
- Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, 272000, China
| | - Changqing Shen
- Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, 272000, China
| | - Zhouhua Lu
- Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, 272000, China
| | - Tongshu Hou
- The Second Clinical Medical College, Binzhou Medical University, Yantai, Shandong, 264100, China
| | - Fenghai Niu
- Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, 272000, China
| | - Ruihan Liu
- Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, 272000, China.
- Postdoctoral Mobile Station of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, 250399, China.
| | - Jun Ning
- Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, 272000, China.
| | - Yuzhong Wang
- Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, 272000, China.
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