Objective: To construct a scientific and perfect evaluation index system of infectious disease prevention and control ability in colleges and universities, so as to provide reference tools for colleges and universities to effectively respond to infectious disease. Methods: The initial framework of the evaluation index system of infectious disease prevention and control ability in colleges and universities was constructed by using literature analysis method. Experts familiar with infectious disease prevention and control or school health work were selected to conduct two rounds( n =16，18) of Delphi expert consultation for determining the evaluation index system. Analytical hierarchy process was used to calculate the index weights and combined weights. About 198 prevention and control personnel were conveniently selected from 3 universities in Inner Mongolia Autonomous Region to comprehensively evaluate the evaluation indicators by using fuzzy comprehensive evaluation method. Results: After two rounds of Delphi consultation questionnaire, the effective recovery rates were 80.0% and 90.0%, the expert authority levels were 0.89 and 0.86, the expert harmony coefficients for Kendall W were 0.166 and 0.310, and the variation coefficient of each index was <0.25. Finally, the evaluation index system of infectious disease prevention and control ability of colleges and universities included 4 first level indicators, 14 second level indicators and 75 third level indicators. The weights of prevention and monitoring and early warning, organizational system guarantee, emergency management, rehabilitation and summary were 0.176, 0.476, 0.268 and 0.080, respectively. The top 3 weights of the secondary indexes were 0.623 for infectious disease surveillance and early warning, 0.595 for loss assessment and 0.370 for emergency response. The score of fuzzy comprehensive evaluation of the index system of infectious disease prevention and control ability in colleges and universities was 79.148, suggesting a high level. Conclusion The established evaluation index system of infectious disease prevention and control ability in colleges and universities is scientific and reasonable, which is conducive to provide tool reference for the evaluation of infectious disease prevention and control ability in colleges and universities.

Objective To investigate the factors affecting the distribution of Pomacea and project the trends in the spread of suitable distribution areas of Pomacea in 2050 and 2070 in Dali Bai Autonomous Prefecture, so as to provide insights into Pomacea control in the prefecture. Methods The longitudes and latitudes of Pomacea sampling sites were captured based on Pomacea field survey data in 12 cities (counties) of Dali Bai Autonomous Prefecture from 2023 to 2024. A total of 19 climatic factors (annual mean temperature, mean diurnal range, isothermality, temperature seasonality, maximum temperature of the warmest month, minimum temperature of the coldest month, temperature annual range, mean temperature of the wettest quarter, mean temperature of the driest quarter, mean temperature of the warmest month, mean temperature of the coldest month, annual precipitation, precipitation of the wettest month, precipitation of the driest month, precipitation seasonality, precipitation of the wettest quarter, precipitation of the driest quarter, mean temperature of the warmest quarter, and mean temperature of the coldest quarter) and representative concentration pathways (RCPs) were retrieved from the world climate database (www.worldclim.org). All climatic variables were employed to create a maximum entropy (MaxEnt) model. The predictive accuracy of the model was assessed with the area under the receiver operating characteristic (ROC) curve (AUC), and the contributions of these 19 climatic factors to the distribution of Pomacea were analyzed in Dali Bai Autonomous Prefecture using Jackknife test. In addition, the suitable distribution areas of Pomacea were predicted with the MaxEnt model in Dali Bai Autonomous Prefecture in 2024 and in 2050 and 2070 under RCP4.5. Results Data pertaining to 91 Pomacea sampling sites were captured. ROC analysis revealed the MaxEnt model had an AUC value of 0.885 ± 0.088 for predicting the suitable distribution areas of Pomacea in Dali Bai Autonomous Prefecture. Of the 19 climatic factors, the maximum temperature of the warmest month had the highest contribution to the distribution of Pomacea in Dali Bai Autonomous Prefecture, followed by mean temperature of the driest quarter, mean temperature of the wettest quarter and minimum temperature of the coldest month. The suitable distribution area of Pomacea was predicted to be 14 555.69 km² in Dali Bai Autonomous Prefecture in 2024, and would expand gradually to the southeastern part of the prefecture in the future due to climatic factors. The suitable distribution areas of Pomacea were projected to expand to 21 475.61 km² in 2050 and 25 782.52 km² in 2070 in Dali Bai Autonomous Prefecture, respectively. Conclusions Temperature is an important contributor to the distribution of Pomacea in Dali Bai Autonomous Prefecture, and the suitable distribution area of Pomacea will gradually expand to the southeastern part of the prefecture in 2050 and 2070.

Cryptosporidium is an important intestinal parasite that is mainly transmitted through the fecal-oral route. Human infection may occur following ingestion of water and food contaminated by Cryptosporidium oocysts, and children and immunocompromised individuals are at a high risk of infections. The main symptoms of Cryptosporidium infections include diarrhea, vomiting, malnutrition, and even death. Because of high sensitivity and rapid procedures, molecular tests are helpful for the diagnosis of cryptosporidiosis and may reduce the public health risk of cryptosporidiosis. This review summarizes the advances in the latest prevalence and molecular detection of human Cryptosporidium infections during recent years.

Objective:To explore the application and potential optimization of the collaborative and competitive learning model in the Health Education course. Methods:Undergraduate medical students participating in Health Education course practice tasks were selected to conduct discussions and reach consensus according to research objectives based on the e fast anonymous consensus-forming tool (eFAST). The meeting records were analyzed for theme identification using the keyword classification method. Results:Nine medical students participated in eFAST discussions. The students considered the following five aspects as the most important for undertaking Health Education course practice tasks using the collaborative and competitive learning model: timely communication, problem evaluation, report content enrichment, reasonable task allocation within groups, and task topic selection by group members together. They also proposed suggestions on improvement of the assessment method, including teacher involvement in scoring, intra-group scoring based on inter-group scoring, all students participating in inter-group scoring, and using mobile applications for scoring and summarization. Conclusions:The collaborative and competitive learning model can be used in the teaching of Health Education, but further optimization is needed in course task design, implementation, reporting, and assessment.

Objective:To explore the application effect of the milestone evaluation system based on ACGME core competencies in the standardized training of residents in the department of rheumatology and immunology.Methods:A modified Milestone Evaluation Scale was developed for the department of rheumatology and immunology. Self evaluation and mentor evaluation were conducted on 150 residents who received standardized training in grades 1-3 before May 2023. The results were collected and statistically analyzed. One-way analysis of variance and t-test were performed using SPSS 27.0. Results:The self-evaluation and mentor evaluation scores of all residents increased with the training years. Self-evaluation scores were significantly higher than mentor evaluation scores ( P<0.05) for the medical knowledge ( t=2.95, P=0.006), diagnosis and treatment ability ( t=2.57, P=0.015), and learning ability ( t=2.67, P=0.015) of grade 2 residents and the learning ability ( t=2.87, P=0.007) of grade 3 residents. There were no significant differences in the baseline score and ability improvement of residents from different institutions ( P>0.05). Conclusions:The milestone evaluation system is an effective tool for training, assessing, and providing feedback to residents in rheumatology and immunology, and provides essential feedback to resident training bases regarding the training effectiveness. The method is worth promoting.

Objective To evaluate the potential risk of transmission of angiostrongyliasis by common freshwater snails in Dali Bai Autonomous Prefecture, Yunnan Province, so as to provide insights into local surveillance of angiostrongyliasis. Methods Common freshwater snails were collected from Dali Bai Autonomous Prefecture, Yunnan Province from March to April, 2020, and identified and bred in laboratory. SD rats were infected with third-stage larvae of Angiostrongylus cantonensis that were isolated from commercially available Pomacea canaliculata snails in Dali Bai Autonomous Prefecture, and freshwater snails were infected with the first-stage larvae of A. cantonensis that were isolated from the feces of SD rats 39 days post-infection at room temperature. The developmental process and morphological characteristics of worms in hosts were observed, and the percentages of A. cantonensis infections in different species of freshwater snails were calculated. Then, SD rats were infected with the third-stage larvae of A. cantonensis that were isolated from A. cantonensis-infected freshwater snails, and the larval development and reproduction was observed. Results More than 3 000 freshwater snail samples were collected from farmlands, ditches and wetlands around Erhai Lake in Dali Bai Autonomous Prefecture, and Cipangopaludina chinensis, P. canaliculata, Parafossarulus striatulus, Oncomelania hupensis robertsoni, Galba pervia, Physa acuta, Radix swinhoei, Assiminea spp., Tricula spp. and Bellamya spp. were morphologically identified. A total of 105 commercially available P. canaliculata snails were tested for A. cantonensis infections, and 2 P. canaliculata snails were found to be infected with A. cantonensis, in which the third-stage larvae of A. cantonensis were isolated. Ten species of freshwater snails were artificially infected with the third-stage larvae of A. cantonensis, and all 10 species of freshwater snails were found to be infected with A. cantonensis, with the highest positive rate of A. cantonensis infections in Bellamya spp. (62.3%, 137/204), and the lowest in C. chinensis (35.5%, 11/31). After SD rats were infected with the third-stage larvae of A. cantonensis isolated from different species of freshwater snails, mature adult worms of A. cantonensis were yielded. Conclusions Multiple species of freshwater snails may serve as intermediate hosts of A. cantonensis under laboratory conditions in Dali Bai Autonomous Prefecture of Yunnan Province. Further investigations on natural infection of A. cantonensis in wild snails in Dali Bai Autonomous Prefecture seem justified.

Objective:To analyze the epidemiological characteristics of imported malaria cases from 2019 to 2023 after the elimination of malaria in Shanxi Province, and provide reference for formulating scientific and effective malaria prevention and control strategies in Shanxi Province.Methods:The data of imported malaria cases were collected China Information System for Disease Control and Prevention and National Parasitic Disease Control Information Management System in Shanxi Province, from 2019-2023. Descriptive epidemiological method and SPSS 26.0 statistical software were used for descriptive epidemiological statistical analysis.Results:A total of 51 malaria cases were reported in Shanxi Province in 2019-2023, all imported from abroad. Among them, there were 38 cases of falciparum malaria (74.51%), 6 cases of plasmodium ovale (11.77%), 5 cases of plasmodium vivax (9.80%), 1 case of plasmodium triticum malaria (1.96%), and 1 case of mixed infections (1.96%), with nodeaths; cases were predominantly males (94.12%, 48/51) and workers who went abroad for work (84.31%,43/51); the median age of onset was 37 years old; and there were imported cases every month, with no obvious peak of incidence; Taiyuan City reported the most cases, accounting for 72.55% (37/51) of the total number of cases,the source of infection of cases was mainly from Africa (96.08%), with the Democratic Republic of the Congo (16 cases), Nigeria (6 cases), Equatorial Guinea (5 cases), Mozambique (3 cases), and Republic of the Congo (3 cases) in that order; the median time between the onset of disease and first diagnosis, and the median time between first diagnosis and confirmation, were two times longer than that of first diagnosis, and the median time between first diagnosis and confirmation was two times longer than that of first diagnosis. The M( Q1, Q3) intervals from onset to first diagnosis and from first diagnosis to confirmed diagnosis were 2(0,4) days and 1(0,3) days, respectively, with statistically significant differences between different years from onset to first diagnosis ( H=17.41, P=0.048), and from first diagnosis to confirmed diagnosis ( H=20.82, P=0.010). A total of 101 146 blood tests for febrile patients were conducted in the province during the five years, with the minimum number of blood tests in 2020 (19 867 person-times) and the maximum number of blood tests in 2023 (20 778 person-times). Conclusions:After the elimination of malaria in Shanxi Province from 2019 to 2023, all malaria cases were imported from abroad, and it is still necessary to strengthen the surveillance of people traveling to and from malaria-endemic areas, implement the combination of medical treatment and prevention, and jointly prevent and control the occurrence of imported malaria.

Concurrent chemoradiotherapy (CCRT) refers to the simultaneous treatment of chemotherapy and radiotherapy, and the effect of radiotherapy is enhanced with low-dose chemotherapy, which can reduce tumor recurrence and metastasis and improve clinical prognosis of patients. At present, the main factors for the increase of radiosensitivity of concurrent chemotherapy is that concurrent chemotherapy prevents the repair of tumor cells, and chemotherapy and radiotherapy act on different cell cycles and have synergistic effects. However, even for patients with locally advanced cervical cancer (LACC) who have undergone CCRT, the 5-year survival rate is only 60%, which is still not ideal. In order to improve the efficacy, researchers have conducted a series of exploratory studies, which consist of the combination of targeted drugs and immunodrugs, and neoadjuvant regimens before CCRT, etc. Although targeted or immunologic drugs are effective treatment of LACC, in view of the lack of large-scale evidence-based medical evidence, multi-center prospective and randomized phase III clinical trials and high-level articles are needed to improve the level of evidence-based medicine. This consensus summarizes several key evidence-based medical studies published recently, especially the clinical research progress in targeted and immunological therapies, providing reference for domestic peers.

OBJECTIVE： To screen the hepatoprotective active fractions from Ixeris chinensis and study its chemical constituents. METHODS：The petroleum ether，ethyl acetate，n-butanol and residual water fractions from 70％ ethanol extract of I.chinensis were extracted by systematic solvent method. Human hepatocytes HL-7702 were induced by acetaminophen to induce liver injury model. MTT method was used to detect the protective effect of the above fractions（40 μg/mL，by the dosage of crude drug）on injured cells，and the active fractions were screened. The active fractions were separated and purified by silica gel column and Sephadex column chromatography. The structure of the compounds were identified by physical and chemical properties and spectral data （hydrogen spectrum，carbon spectrum）. RESULTS：After treated with different fractions of I. chinensis，the cell survival rate of each administration group was increased significantly，compared with model group（P＜0.01），and the n-butanol and water fractions had the strongest activity （the cell survival rates were 49.3％ and 52.2％ ，respectively）. Six compoundswere isolated from n-butanol fraction and identified as sonchifolignan A（Ⅰ），apigenin-7-O-β-D-glucopyranoside methyl ester（Ⅱ），luteolin-7-O-β-D-glucuronopyranoside methyl ester （Ⅲ），luteolin-7-O-β-D-glucopyranoside （Ⅳ），apigenin-7-O-β-Dglucopyranoside（Ⅴ）and luteolin（Ⅵ）. CONCLUSIONS：The n-butanol fraction is regarded as an effective position for protecting liver，and flavonoids are the main active omponents.KEYWORDS Ixeris chinensis；Hepatoprotective activi

Background/Aims: Lipopolysaccharide (LPS) is the key factor inducing mucosal and systemic inflammation in various intestinal and parenteral diseases, which could initially disrupt the epithelial barrier function. EphrinA1/ephA2 is speculated to increase the epithelial permeability for its “repulsive interaction” between adjacent cells. This study aim to investigate the role of ephrinA1/ephA2 in LPS-induced epithelial hyperpermeability. Methods: In vivo model challenged with oral LPS in C57BL/6 mice and in vitro model exposed to LPS in Caco2 monolayer were established. The barrier function was assessed including expression of tight junction proteins (occludin and claudin-1), transepithelial electrical resistance, and permeability to macromolecules (fluorescein isothiocyanate-labeled fluorescent dextran 4 kDa [FD4]). Moreover, the expression and phosphorylation of ephrinA1/ephA2 were quantified, and its roles in the process of epithelial barrier disruption were confirmed via stimulating ephA2 with ephrinA1-Fc chimera (ephrinA1-Fc) and inactivating ephA2 with ephA2-Fc chimera (ephA2-Fc), or ephA2 monoclonal antibody (ephA2-mab), as well as inhibiting extracellular signal-regulated kinase 1/2 (ERK1/2) with PD98059. Results: LPS induced significant barrier dysfunction with dismissed occludin and claudin-1 expression, reduced transepithelial electrical resistance and increased FD4 permeability, accompanied by upregulated ephrinA1/ephA2 pathway and phosphorylation of ephA2 receptor. Furthermore, ephA2-Fc, and ephA2-mab ameliorated LPS-induced epithelial hyperpermeability, which was also inhibited by PD98059. Additionally, ephrinA1-Fc led to apparent epithelial leakage in Caco2 monolayer by promoting the phosphorylation of ERK1/2, which could be obviously blocked by ephA2-mab and PD98059. Conclusion EphrinA1/ephA2 promotes epithelial hyperpermeability with an ERK1/2-dependent pathway, which involves in LPS-induced intestinal barrier dysfunction.