1.Comparative study on sedative and hypnotic effects of Semen Ziziphi Spinosae before and after processing
Ming CAI ; Lin-Lin CHEN ; Bo XU ; Guang-Jing XIE ; Jing XIA
Chinese Pharmacological Bulletin 2024;40(5):984-991
Aim To explore the differences in sedative and hypnotic effects of Semen Ziziphi Spinosae(SZS)before and after processing based on network pharma-cology and animal experiments.Methods The chemi-cal components and corresponding targets of SZS were collected through relevant platforms and databases,the insomnia and sleep disorder targets were retrieved,and the intersection targets of drugs and diseases were ob-tained.The protein interaction relationships were con-structed,and the Chinese medicinal herb-component-target-pathway network was drawn.Then database was used to analyze pathway enrichment.Based on the pre-dicted results,the effects of different SZS products on Kunming mice were evaluated through pentobarbital in-duced sleep test,behavioral analysis,brain tissue relat-ed gene mRNA levels,and plasma neurotransmitters.Results The target genes related to SZS and insomnia were acetylcholinesterase(ACHE),alpha-1B adrener-gic receptor(ADRA1B),solute carrier family 6(neu-rotransmitter transporter,serotonin),member 4(SLC6 A4),which might play a role through 9 related pathways and 69 biological processes such as calcium signaling pathway,salivary secretion,and so on.In vi-vo experiments found that SZS could reduce mouse ac-tivity,enhance the hypnotic effect of pentobarbital sodi-um,lower the levels of ACEE,ADRA1B,and SLC6A4 mRNA in cortex and hippocampus,and regulate the levels of acetylcholine,adrenaline,and other substances in plasma,all of which could be used in combination with raw and fried methods.The effect was proportion-al to the dosage of the drug.Conclusions SZS has sedative and hypnotic effects,and high doses of crude and parched SZS combined decoction have better effects.This effect may be caused by affecting the lev-els of neurotransmitters and their related receptors,me-diating the central nervous system.
2.Clinical Characteristics and Survival Analysis of Single Center Adult Chronic Myeloid Leukemia in Chronic Phase
Xia-Xia JIAO ; Yuan-Yuan ZHANG ; Jing PAN ; Lei-Na SONG ; Cai-Qin LIN ; Hui-Zhen SHI ; Bin ZHU ; Su-Li WANG ; Shao-Ying PAN ; Zhi-Yong DING ; Wen-Li ZHAO
Journal of Experimental Hematology 2024;32(5):1381-1387
Objective:To investigate the clinical characteristics and prognosis of single center adult chronic myeloid leukemia in chronic phase(CML-CP).Methods:Clinical data of 41 adult CML-CP patients in Department of Hematology,Shanghai Fengxian District Central Hospital from January 2015 to May 2021 were retrospectively analyzed.The clinical characteristics and prognosis of patients between<60 years group and ≥ 60 years group were compared.Results:The 41 patients included 27(65.9%)males and 14(34.1%)females.The median age of the patients was 56(19-84)years,with 22 cases(53.7%)<60 years and 19 cases(46.3%)≥60 years.Univariate analysis indicated that the proportions of patients with comorbidities,intermediate/high-risk Sokal score,myelofibrosis,and lactate dehydrogenase ≥1 000 U/L were significantly increased in ≥60 years group compared with<60 years group at initial diagnosis(all P<0.05).There were no statistical differences in the distribution of sex,ELST score,white blood cell count,platelet count,peripheral blood basophil percentage,peripheral blood eosinophil percentage and bone marrow primitive cell percentage between the two groups(P>0.05).The proportion of patients taking reduced-dose imatinib in≥60 years group significantly increased(P<0.001).Patients<60 years had a higher proportion of molecular biological remission after treatment of tyrosine kinase inhibitors(TKIs)than patients ≥ 60 years(P<0.001).The incidence of non-hematologic adverse reactions to TKI therapy significantly increased in patients ≥ 60 years(P<0.001).Multivariate analysis showed that no adverse factors affecting the efficacy and prognosis of TKI.Conclusion:Compared with adult CML-CP patients<60 years,patients ≥ 60 years gain fewer benefits from TKI treatment and increased adverse reactions.
3.Two cases of neonatal Legionella pneumonia
Yin-Zhi LIU ; Rong ZHANG ; Jing-Jing XIE ; Qiong GUO ; Cai-Xia ZHAN ; Meng-Yu CHEN ; Jun-Shuai LI ; Xiao-Ming PENG
Chinese Journal of Contemporary Pediatrics 2024;26(9):986-988
Patient 1,a 12-day-old female infant,presented with fever,cough,dyspnea,and elevated infection markers,requiring respiratory support.Metagenomic next-generation sequencing(mNGS)of blood and bronchoalveolar lavage fluid revealed Legionella pneumophila(LP),leading to diagnoses of LP pneumonia and LP sepsis.The patient was treated with erythromycin for 15 days and azithromycin for 5 days,resulting in recovery and discharge.Patient 2,an 11-day-old female infant,presented with dyspnea,fever,elevated infection markers,and multiple organ dysfunction,requiring mechanical ventilation.mNGS of blood and cerebrospinal fluid indicated LP,leading to diagnoses of LP pneumonia,LP sepsis,and LP intracranial infection.The patient was treated with erythromycin for 19 days and was discharged after recovery.Neonatal LP pneumonia lacks specific clinical symptoms,and azithromycin is the preferred antimicrobial agent.The use of mNGS can provide early and definitive diagnosis for severe neonatal pneumonia of unknown origin.
4.Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients (version 2024)
Yao LU ; Yang LI ; Leiying ZHANG ; Hao TANG ; Huidan JING ; Yaoli WANG ; Xiangzhi JIA ; Li BA ; Maohong BIAN ; Dan CAI ; Hui CAI ; Xiaohong CAI ; Zhanshan ZHA ; Bingyu CHEN ; Daqing CHEN ; Feng CHEN ; Guoan CHEN ; Haiming CHEN ; Jing CHEN ; Min CHEN ; Qing CHEN ; Shu CHEN ; Xi CHEN ; Jinfeng CHENG ; Xiaoling CHU ; Hongwang CUI ; Xin CUI ; Zhen DA ; Ying DAI ; Surong DENG ; Weiqun DONG ; Weimin FAN ; Ke FENG ; Danhui FU ; Yongshui FU ; Qi FU ; Xuemei FU ; Jia GAN ; Xinyu GAN ; Wei GAO ; Huaizheng GONG ; Rong GUI ; Geng GUO ; Ning HAN ; Yiwen HAO ; Wubing HE ; Qiang HONG ; Ruiqin HOU ; Wei HOU ; Jie HU ; Peiyang HU ; Xi HU ; Xiaoyu HU ; Guangbin HUANG ; Jie HUANG ; Xiangyan HUANG ; Yuanshuai HUANG ; Shouyong HUN ; Xuebing JIANG ; Ping JIN ; Dong LAI ; Aiping LE ; Hongmei LI ; Bijuan LI ; Cuiying LI ; Daihong LI ; Haihong LI ; He LI ; Hui LI ; Jianping LI ; Ning LI ; Xiying LI ; Xiangmin LI ; Xiaofei LI ; Xiaojuan LI ; Zhiqiang LI ; Zhongjun LI ; Zunyan LI ; Huaqin LIANG ; Xiaohua LIANG ; Dongfa LIAO ; Qun LIAO ; Yan LIAO ; Jiajin LIN ; Chunxia LIU ; Fenghua LIU ; Peixian LIU ; Tiemei LIU ; Xiaoxin LIU ; Zhiwei LIU ; Zhongdi LIU ; Hua LU ; Jianfeng LUAN ; Jianjun LUO ; Qun LUO ; Dingfeng LYU ; Qi LYU ; Xianping LYU ; Aijun MA ; Liqiang MA ; Shuxuan MA ; Xainjun MA ; Xiaogang MA ; Xiaoli MA ; Guoqing MAO ; Shijie MU ; Shaolin NIE ; Shujuan OUYANG ; Xilin OUYANG ; Chunqiu PAN ; Jian PAN ; Xiaohua PAN ; Lei PENG ; Tao PENG ; Baohua QIAN ; Shu QIAO ; Li QIN ; Ying REN ; Zhaoqi REN ; Ruiming RONG ; Changshan SU ; Mingwei SUN ; Wenwu SUN ; Zhenwei SUN ; Haiping TANG ; Xiaofeng TANG ; Changjiu TANG ; Cuihua TAO ; Zhibin TIAN ; Juan WANG ; Baoyan WANG ; Chunyan WANG ; Gefei WANG ; Haiyan WANG ; Hongjie WANG ; Peng WANG ; Pengli WANG ; Qiushi WANG ; Xiaoning WANG ; Xinhua WANG ; Xuefeng WANG ; Yong WANG ; Yongjun WANG ; Yuanjie WANG ; Zhihua WANG ; Shaojun WEI ; Yaming WEI ; Jianbo WEN ; Jun WEN ; Jiang WU ; Jufeng WU ; Aijun XIA ; Fei XIA ; Rong XIA ; Jue XIE ; Yanchao XING ; Yan XIONG ; Feng XU ; Yongzhu XU ; Yongan XU ; Yonghe YAN ; Beizhan YAN ; Jiang YANG ; Jiangcun YANG ; Jun YANG ; Xinwen YANG ; Yongyi YANG ; Chunyan YAO ; Mingliang YE ; Changlin YIN ; Ming YIN ; Wen YIN ; Lianling YU ; Shuhong YU ; Zebo YU ; Yigang YU ; Anyong YU ; Hong YUAN ; Yi YUAN ; Chan ZHANG ; Jinjun ZHANG ; Jun ZHANG ; Kai ZHANG ; Leibing ZHANG ; Quan ZHANG ; Rongjiang ZHANG ; Sanming ZHANG ; Shengji ZHANG ; Shuo ZHANG ; Wei ZHANG ; Weidong ZHANG ; Xi ZHANG ; Xingwen ZHANG ; Guixi ZHANG ; Xiaojun ZHANG ; Guoqing ZHAO ; Jianpeng ZHAO ; Shuming ZHAO ; Beibei ZHENG ; Shangen ZHENG ; Huayou ZHOU ; Jicheng ZHOU ; Lihong ZHOU ; Mou ZHOU ; Xiaoyu ZHOU ; Xuelian ZHOU ; Yuan ZHOU ; Zheng ZHOU ; Zuhuang ZHOU ; Haiyan ZHU ; Peiyuan ZHU ; Changju ZHU ; Lili ZHU ; Zhengguo WANG ; Jianxin JIANG ; Deqing WANG ; Jiongcai LAN ; Quanli WANG ; Yang YU ; Lianyang ZHANG ; Aiqing WEN
Chinese Journal of Trauma 2024;40(10):865-881
Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.
5.The application analysis of dyadicillness management theory in chemotherapy-stage ovarian cancer patients and their spouses
Yanli ZHANG ; Xia WANG ; Jing YOU ; Huiyuan CAI
Chinese Journal of Practical Nursing 2024;40(7):481-486
Objective:To explore the effects of an intervention strategy based on dyadic illness management theory on dyadic coping level, supportive care needs, and patients' disease symptoms with chemotherapy-stage ovarian cancer patients and their spouses, and to provide reference for improving their disease coping ability and quality of life.Methods:This study used the method of randomized controlled trial. Seventy pairs of ovarian cancer patients and their spouses who received regular chemotherapy and their spouses from Obstetrics and Gynecology Hospital, Fudan University from July 2022 to June 2023 were selected using convenience sampling method. They were assigned to the control group (36 pairs) and the observation group (36 pairs) by the random number table method. Participants in the control group received routine nursing care and the observation group received the intervention strategy of dyadic illness management theory. Data were collected and compared the differences in dyadic coping levels, care needs, and disease symptoms between two groups of patients and their spouses before intervention (before chemotherapy) and after intervention (after the end of the chemotherapy cycle). SPSS 20.0 software was used for analysis, and t-tests, χ2 tests, and Wilcoxon rank sum tests were used to compare the two groups. Results:Finally, 36 pairs were included in the control group and 34 pairs in the observation group. The age of the control group patients was (52.03 ± 9.44) years old, while that of the observation group patients was (53.41 ± 10.14) years old. After the intervention, the total score of dyadic coping level in the patients and their spouses of the observation group were (113.50 ± 8.03), (114.62 ± 10.59) points, respectively, which were higher than (106.64 ± 10.06), (108.78 ± 10.89) points of the control group with significant differences ( t=-3.14, -2.27, both P<0.05); the total score of care needs in the patients and their spouses of the observation group were (89.65 ± 8.29), (95.12 ± 7.25) points, respectively, which were lower than (100.25 ± 10.82), (110.11 ± 7.58) points of the control group with significant differences ( t=4.58, 8.45, both P<0.001); the total score of disease symptoms in the patients of the observation group was (20.09 ± 4.70) points, which was lower than (31.53 ± 6.08) points of the control group with significant differences ( t=8.77, P<0.001). Conclusions:The model of dyadic illness management can improve dyadic coping level and supportive care needs of chemotherapy-stage ovarian cancer patients and their spouses, and alleviate patients′ disease symptoms.
6.Different reaction patterns and influencing factors among family caregivers of patients with advanced gynecological malignancies: a latent profile analysis
Yanli ZHANG ; Xia WANG ; Jing YOU ; Huiyuan CAI ; Li WANG
Chinese Journal of Practical Nursing 2024;40(11):801-808
Objective:To explore the different reaction patterns among family caregivers of patients with advanced gynecological malignancies, and to analyze the influencing factors of different profiles.Methods:A cross-sectional study was conducted with 210 family caregivers of patients with advanced gynecological malignancies from Obstetrics and Gynecology Hospital in Shanghai from January 2022 to December 2022. Data were collected by Caregiver Reaction Assessment, Mishel's Uncertainty in Illness Scale-Family Member Form and Perceived Social Support Scale. Latent profile analysis was used to explore the different reaction patterns among family caregivers of patients with advanced gynecological malignancies. The influencing factors of caregiver reaction were identified by multivariate Logistic regression.Results:Totally 208 questionnaires were effectively collected. The family caregivers among patients with advanced gynecological malignancies included 163 males and 45 females, aged (53.89 ± 12.61) years old. The reaction characteristics of 208 family caregivers among patients with advanced gynecological malignancies were divided into three categories: low burden and high benefit group (24.5%, 51/208), moderate burden and benefit group (30.8%, 64/208), and high burden and low benefit group (44.7%, 93/208). Compared to the low burden and high benefit group, caregivers with lower levels of social support were more likely to be classified as moderate burden and benefit group, high burden and low benefit group ( OR = 0.563, 0.407, both P<0.01). Caregivers with moderate burden and benefit group, high burden and low benefit group had higher levels of disease uncertainty ( OR = 1.328, 2.064, both P<0.01). The caregiver′s age, monthly family income, education level, and co-caregivers were also influencing factors regarding to care reaction among family caregivers of patients with advanced gynecological malignancies ( OR values were 0.207-6.422, all P<0.05). Conclusions:The care reaction of family caregivers among patients with advanced gynecological malignancies has obvious categorical features. Healthcare professionals should implement targeted nursing interventions according to their reaction characteristics, so as to reduce the care burden of family caregivers and improve the quality of care for patients with advanced gynecological malignancies.
7.Reduced expression of semaphorin 3A in osteoclasts causes lymphatic expansion in a Gorham-Stout disease(GSD)mouse model
ZHANG DONGFANG ; XU HAO ; QIN CHI ; CAI KANGMING ; ZHANG JING ; XIA XINQIU ; BI JINGWEN ; ZHANG LI ; XING LIANPING ; LIANG QIANQIAN ; WANG WENSHENG
Journal of Zhejiang University. Science. B 2024;25(1):38-50,中插1-中插8
Gorham-Stout disease(GSD)is a sporadic chronic disease characterized by progressive bone dissolution,absorption,and disappearance along with lymphatic vessel infiltration in bone-marrow cavities.Although the osteolytic mechanism of GSD has been widely studied,the cause of lymphatic hyperplasia in GSD is rarely investigated.In this study,by comparing the RNA expression profile of osteoclasts(OCs)with that of OC precursors(OCPs)by RNA sequencing,we identified a new factor,semaphorin 3A(Sema3A),which is an osteoprotective factor involved in the lymphatic expansion of GSD.Compared to OCPs,OCs enhanced the growth,migration,and tube formation of lymphatic endothelial cells(LECs),in which the expression of Sema3A is low compared to that in OCPs.In the presence of recombinant Sema3A,the growth,migration,and tube formation of LECs were inhibited,further confirming the inhibitory effect of Sema3A on LECs in vitro.Using an LEC-induced GSD mouse model,the effect of Sema3A was examined by injecting lentivirus-expressing Sema3A into the tibiae in vivo.We found that the overexpression of Sema3A in tibiae suppressed the expansion of LECs and alleviated bone loss,whereas the injection of lentivirus expressing Sema3A short hairpin RNA(shRNA)into the tibiae caused GSD-like phenotypes.Histological staining further demonstrated that OCs decreased and osteocalcin increased after Sema3A lentiviral treatment,compared with the control.Based on the above results,we propose that reduced Sema3A in OCs is one of the mechanisms contributing to the pathogeneses of GSD and that expressing Sema3A represents a new approach for the treatment of GSD.
8.Correlation between Combined Urinary Metal Exposure and Grip Strength under Three Statistical Models: A Cross-sectional Study in Rural Guangxi
Jian Yu LIANG ; Hui Jia RONG ; Xiu Xue WANG ; Sheng Jian CAI ; Dong Li QIN ; Mei Qiu LIU ; Xu TANG ; Ting Xiao MO ; Fei Yan WEI ; Xia Yin LIN ; Xiang Shen HUANG ; Yu Ting LUO ; Yu Ruo GOU ; Jing Jie CAO ; Wu Chu HUANG ; Fu Yu LU ; Jian QIN ; Yong Zhi ZHANG
Biomedical and Environmental Sciences 2024;37(1):3-18
Objective This study aimed to investigate the potential relationship between urinary metals copper (Cu), arsenic (As), strontium (Sr), barium (Ba), iron (Fe), lead (Pb) and manganese (Mn) and grip strength. Methods We used linear regression models, quantile g-computation and Bayesian kernel machine regression (BKMR) to assess the relationship between metals and grip strength.Results In the multimetal linear regression, Cu (β=-2.119), As (β=-1.318), Sr (β=-2.480), Ba (β=0.781), Fe (β= 1.130) and Mn (β=-0.404) were significantly correlated with grip strength (P < 0.05). The results of the quantile g-computation showed that the risk of occurrence of grip strength reduction was -1.007 (95% confidence interval:-1.362, -0.652; P < 0.001) when each quartile of the mixture of the seven metals was increased. Bayesian kernel function regression model analysis showed that mixtures of the seven metals had a negative overall effect on grip strength, with Cu, As and Sr being negatively associated with grip strength levels. In the total population, potential interactions were observed between As and Mn and between Cu and Mn (Pinteractions of 0.003 and 0.018, respectively).Conclusion In summary, this study suggests that combined exposure to metal mixtures is negatively associated with grip strength. Cu, Sr and As were negatively correlated with grip strength levels, and there were potential interactions between As and Mn and between Cu and Mn.
9.Epidemiological characteristics of human respiratory syncytial virus among acute respiratory infection cases in 16 provinces of China from 2009 to 2023
Aili CUI ; Baicheng XIA ; Zhen ZHU ; Zhibo XIE ; Liwei SUN ; Jin XU ; Jing XU ; Zhong LI ; Linqing ZHAO ; Xiaoru LONG ; Deshan YU ; Bing ZHU ; Feng ZHANG ; Min MU ; Hui XIE ; Liang CAI ; Yun ZHU ; Xiaoling TIAN ; Bing WANG ; Zhenguo GAO ; Xiaoqing LIU ; Binzhi REN ; Guangyue HAN ; Kongxin HU ; Yan ZHANG
Chinese Journal of Preventive Medicine 2024;58(7):945-951
Objective:To understand the epidemiological characteristics of human respiratory syncytial virus (HRSV) among acute respiratory infection (ARI) cases in 16 provinces of China from 2009 to 2023.Methods:The data of this study were collected from the ARI surveillance data from 16 provinces in China from 2009 to 2023, with a total of 28 278 ARI cases included in the study. The clinical specimens from ARI cases were screened for HRSV nucleic acid from 2009 to 2023, and differences in virus detection rates among cases of different age groups, regions, and months were analyzed.Results:A total of 28 278 ARI cases were enrolled from January 2009 to September 2023. The age of the cases ranged from<1 month to 112 years, and the age M ( Q1, Q3) was 3 years (1 year, 9 years). Among them, 3 062 cases were positive for HRSV nucleic acid, with a total detection rate of 10.83%. From 2009 to 2019, the detection rate of HRSV was 9.33%, and the virus was mainly prevalent in winter and spring. During the Corona Virus Disease 2019 (COVID-19) pandemic, the detection rate of HRSV fluctuated between 6.32% and 18.67%. There was no traditional winter epidemic peak of HRSV from the end of 2022 to the beginning of 2023, and an anti-seasonal epidemic of HRSV occurred from April to May 2023. About 87.95% (2 693/3 062) of positive cases were children under 5 years old, and the difference in the detection rate of HRSV among different age groups was statistically significant ( P<0.001), showing a decreasing trend of HRSV detection rate with the increase of age ( P<0.001). Among them, the HRSV detection rate (25.69%) was highest in children under 6 months. Compared with 2009-2019, the ranking of HRSV detection rates in different age groups changed from high to low between 2020 and 2023, with the age M (Q1, Q3) of HRSV positive cases increasing from 1 year (6 months, 3 years) to 2 years (11 months, 3 years). Conclusion:Through 15 years of continuous HRSV surveillance analysis, children under 5 years old, especially infants under 6 months old, are the main high-risk population for HRSV infection. During the COVID-19 pandemic, the prevalence and patterns of HRSV in China have changed.
10.Epidemiological characteristics of human respiratory syncytial virus among acute respiratory infection cases in 16 provinces of China from 2009 to 2023
Aili CUI ; Baicheng XIA ; Zhen ZHU ; Zhibo XIE ; Liwei SUN ; Jin XU ; Jing XU ; Zhong LI ; Linqing ZHAO ; Xiaoru LONG ; Deshan YU ; Bing ZHU ; Feng ZHANG ; Min MU ; Hui XIE ; Liang CAI ; Yun ZHU ; Xiaoling TIAN ; Bing WANG ; Zhenguo GAO ; Xiaoqing LIU ; Binzhi REN ; Guangyue HAN ; Kongxin HU ; Yan ZHANG
Chinese Journal of Preventive Medicine 2024;58(7):945-951
Objective:To understand the epidemiological characteristics of human respiratory syncytial virus (HRSV) among acute respiratory infection (ARI) cases in 16 provinces of China from 2009 to 2023.Methods:The data of this study were collected from the ARI surveillance data from 16 provinces in China from 2009 to 2023, with a total of 28 278 ARI cases included in the study. The clinical specimens from ARI cases were screened for HRSV nucleic acid from 2009 to 2023, and differences in virus detection rates among cases of different age groups, regions, and months were analyzed.Results:A total of 28 278 ARI cases were enrolled from January 2009 to September 2023. The age of the cases ranged from<1 month to 112 years, and the age M ( Q1, Q3) was 3 years (1 year, 9 years). Among them, 3 062 cases were positive for HRSV nucleic acid, with a total detection rate of 10.83%. From 2009 to 2019, the detection rate of HRSV was 9.33%, and the virus was mainly prevalent in winter and spring. During the Corona Virus Disease 2019 (COVID-19) pandemic, the detection rate of HRSV fluctuated between 6.32% and 18.67%. There was no traditional winter epidemic peak of HRSV from the end of 2022 to the beginning of 2023, and an anti-seasonal epidemic of HRSV occurred from April to May 2023. About 87.95% (2 693/3 062) of positive cases were children under 5 years old, and the difference in the detection rate of HRSV among different age groups was statistically significant ( P<0.001), showing a decreasing trend of HRSV detection rate with the increase of age ( P<0.001). Among them, the HRSV detection rate (25.69%) was highest in children under 6 months. Compared with 2009-2019, the ranking of HRSV detection rates in different age groups changed from high to low between 2020 and 2023, with the age M (Q1, Q3) of HRSV positive cases increasing from 1 year (6 months, 3 years) to 2 years (11 months, 3 years). Conclusion:Through 15 years of continuous HRSV surveillance analysis, children under 5 years old, especially infants under 6 months old, are the main high-risk population for HRSV infection. During the COVID-19 pandemic, the prevalence and patterns of HRSV in China have changed.

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