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20 April 2022, Volume 20 Issue 2 Previous Issue    Next Issue

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A proposal of “One Health”action plan and its Chinese translation SHEN Ji-long 2022, 20 (2):  61-63,75.  Abstract ( 768 )   PDF (933KB) ( 1755 )   With the high development of science and technology across the world today, many classic infectious diseases have not disappeared. Contrarily, there are frequent outbreaks of certain emerging infectious diseases, and the prevalence of many “civilization-related diseases” is gradually increasing. It is gradually recognized that human health is closely related to animals and microorganisms as well as diverse ecology of the earth’s environment. Therefore, scholars have put forward the concept of “One Health”, with an attempt to find an effective way to overcome many infectious diseases including zoonosis from the perspective of human-animal-environment interaction. This paper aims at discussing and analyzing the proposal and connotation of “One Health”, connection between “One Health”and the concept of “Big Health” in China, and the Chinese translation of “One Health”, in order to provide reference for the practice of “One Health”. Related Articles | Metrics

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Spatial cluster analysis of echinococcosis in the eastern Qinghai-Tibet Plateau from 2016 to 2020 SHI Dan-dan, KUAI Yan, HAN Shuai, WU Wei-ping 2022, 20 (2):  64-68.  Abstract ( 426 )   PDF (2245KB) ( 925 )   Objective To investigate the spatial distribution characteristics of echinococcosis in the eastern Qinghai-Tibet Plateau from 2016 to 2020 for evidences in formulating strategies for prevention and control of this infection. Methods The data on echinococcosis cases reported from 2016 to 2020 in the eastern Qinghai-Tibet Plateau areas, including Yushu and Golog prefecture of Qinghai Province, Ganzi and Aba prefecture of Sichuan Province, were retrieved from National Infectious Disease Surveillance Report Database, and then analyzed for the global spatial autocorrelation, local spatial autocorrelation and hotspot. Results The average annual incidence rate was 0.032% in the eastern Qinghai-Tibet Plateau areas from 2016 to 2020, and the incidence rate showed a downward trend over year (χ2=802.991, P<0.05). Global spatial autocorrelation analysis indicated that the global Moran′s I value was 0.005, 0.088 and -0.046 from 2016 through 2018 (Z=0.281, 1.196, -0.046; all P>0.05), and 0.179, 0.166 respectively for 2019 and 2020 (Z=2.273, 2.316; both P<0.05). Local spatial autocorrelation analysis revealed that the incidence of echinococcosis tended to be cluster distribution in the eastern Qinghai-Tibet Plateau areas between 2019 and 2020, characterized by high-high, high-low and low-high tendency. Local Hot Spot Analysis(Getis-Ord Gi*) results showed that the hotspots in 2019 were located in Zhiduo County, Zaduo County, and Yushu City of Qinghai Province, and in 2020 in Aba County, Hongyuan County, Lixian County, Ruoergai County, Songpan County, Heishui County and Maerkang County in Sichuan Province. Conclusion The incidence rate of echinococcosis in the eastern Qinghai-Tibet Plateau was annually decreased from 2016 to 2020, yet showing a certain degree of spatial clustering. The findings suggest that prevention and control activities for echinococcosis should be intensified in the hotspots. Related Articles | Metrics

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Analysis of malaria epidemic characteristics and case diagnosis in Changzhou City from 2010 to 2020 GUO Yan-li, XIE Yi-qing, ZHU Shi-ying, HE Ming-zhen 2022, 20 (2):  69-75.  Abstract ( 434 )   PDF (1420KB) ( 1023 )   Objective To analyze the epidemiological characteristics of malaria in Changzhou City from 2010 to 2020, so as to provide evidence for formulating and adjusting the strategies and measures for prevention and control of malaria infection. Methods The epidemiological investigation information on the malaria cases in Changzhou City from 2010 to 2020 was collected through the sub-system of infectious disease monitoring and parasitic disease prevention and control information management under China Information System for Disease Prevention and Control. Software SPSS (version 22.0) was used to analyze malaria epidemic situation and the three-dimensional distribution, source of infection, time of onset, diagnosis and treatment. Results A total of 233 malaria cases were reported in Changzhou City from 2010 to 2020, including 230 cases imported from abroad, 2 cases of local infection and 1 case imported from another province. Imported cases were mainly from Africa (n=220, 95.65%) and Southeast Asia (n=28, 3.48%). Apart from 4 clinically diagnosed cases, 229 confirmed cases consisted of infection with Plasmodium falciparum(n=164, 71.62%), Plasmodium ovale(n=42, 18.34%), Plasmodium vivax(n=16, 6.99%) and Plasmodium malariae(n=7, 3.06%). The cases were mainly distributed in Jintan District (n=92, 39.48%) and Liyang City (n=85, 36.48%). The infection was most seen in males (n=225, 96.57%), and dominant in age ranging from 22 to 59 years old (n=230, 98.71%). The major reason for leaving the country was to work abroad (n=213, 92.61%). The median interval from entry to onset of malaria among imported cases was 8 days, and most cases (n=171, 77.03%) developed within 14 days after entry. The median interval from onset to diagnosis was 3 days, and 2, 3 and 6 days for patients confirmed on outpatient basis, inpatients and critical in patients, respectively. The difference was statistically significant (χ２=6.313, P=0.043). The primary and final diagnosis primarily occurred in medical institutions at city/county level. The overall proportion of malaria cases diagnosed at the initial visit was 73.82%(172/233), and 100.00%(52/52), 79.07%(102/129) and 34.62%(18/52) at city/county level CDCs, city/county level hospitals, township health centers or below, respectively. The difference was significant(χ２=61.636, P<0.001). Conclusion Imported malaria has become the main risk factor for the prevention and control of malaria in Changzhou City, which suggests that we should strengthen the publicity and education of malaria prevention and control knowledge for personnel leaving the country for working in malaria endemic areas such as Africa, so as to improve their awareness of malaria prevention and timely treatment. In addition, the capacity of malaria diagnosis and treatment of staff in medical and health institutions at all levels should be constantly improved to prevent the retransmission of imported cases.  Related Articles | Metrics

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Analysis of HIV/AIDS epidemic characteristics among MSM in Beihai City from 2008 to 2020 LIU Xuan-gu, MAO Nai-ling, GUO Wei-gui, PAN Ju-xian, MENG Xiao-ting 2022, 20 (2):  76-79，封三.  Abstract ( 437 )   PDF (884KB) ( 702 )   Objective To understand the epidemic characteristics and trends of HIV/AIDS prevalence among men who have sex with men (MSM) in Beihai City, Guangxi, for scientific basis to formulate HIV/AIDS prevention and control measures for this group of population. Methods The sentinel surveillance data on MSM from 2014 to 2020 and HIV/AIDS cases reported from 2008 to 2020 in Beihai City were retrieved. The HIV/AIDS epidemic characteristics of time, population, area distribution of MSM, knowledge and behaviors of AIDS prevention of sentinel MSM in Beihai were analyzed. Results Totally, 201 cases of HIV/AIDS in MSM were reported in Beihai City from 2008 to 2020, which accounted for 11.10% of the total number of newly discovered and reported HIV/AIDS cases in the same period. The number and composition ratio of MSM cases tended to grow year by year, with newly reported cases rising from 1 to 37 cases each year, and the composition ratio had risen from 1.41% to 21.51%. The median age of MSM cases was 26.0(22.0, 33.5) years. The education level was college or above, which accounted for 38.81%, and 80.10% were unmarried. The occupation was associated with housework man and current unemployment(29.35%), services in food industry and other businesses(26.87%) and students(12.94%). Most MSM cases were identified in active testing and consulting(48.26%). Although MSM cases were distributed in one country and three districts under Beihai administration, yet were most in Haicheng district(51.24%). The household registration was mainly in Beihai area(56.22%). History of sexually transmitted diseases was higher, yet the death ratio was lower in MSM group than in other population(χ2=14.74, P<0.001; χ2=63.73, P<0.001, respectively). The sentinel surveillance between 2014 and 2020 showed that awareness rate of AIDS knowledge was 95.83%-100.00% among MSM, and 52.70%-70.55% of them had a habit of condom use during the sexual behavior in the past 6 months. HIV and syphilis infection rate was between 4.19% and 26.36%, 5.39% and 8.05%, respectively. Conclusion MSM shall be the key population for AIDS prevention and control in Beihai City, for whom specific intervention measures should be formulated to prevent spread of AIDS. Related Articles | Metrics

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Analysis on the surveillance results of malaria vector population and density in Jiaozuo City from 2020 to 2021 RAN Wei-xia, HE Zhi-quan, HU Ya-bo, LI Tang-yun, ZHANG Zhong-cao, MA Qian, XU Xiao-li 2022, 20 (2):  80-82,116.  Abstract ( 546 )   PDF (1009KB) ( 561 )   Objective To understand the population and density of malaria vector in Jiaozuo City for evidences to evaluate the risks in control of malaria vectors and retransmission of imported malaria after malaria elimination. Methods Between 2020 and 2021, seven counties (cities/districts) in Jiaozuo City were selected as malaria transmission vector monitoring sites. All-night mosquito lamp traps and artificial entrapment methods were used to investigate the mosquito population and density. Twenty large and medium-sized water bodies were included as sties for investigating the mosquito breeding using spoon catching method. Results Anopheles sinensis were found in the 7 counties(cities/districts) except in Jiefang district. Totally, 8 116 mosquitoes were captured in 2020. The constituent ratio of Anopheles sinensis was 21.76%, with the highest in Xiuwu County(1 262) and areas in Qinyang City(40.39%). The number of Anopheles sinensis was maximum in indoor environment, and the constituent ratio of Anopheles sinensis was the highest in outdoor surroundings. A total of 802 mosquitoes were captured for density monitoring. The average density was 30.55 mosquitoes captured by one person per hour. Of the 802 mosquitoes, 136 were Anopheles sinensis, with an average density being 5.18 captured by one person per hour. One hundred and twenty-six larvae of Anopheles sinensis were caught in the rice fields, yet they were free in other water bodies. 10 852 mosquitoes were seized in 2021. The constituent ratio of Anopheles sinensis was 1.67%, with the highest in Xiuwu County(179，1.99%), and was higher in indoor environment than in outdoor surroundings. For density monitoring, 3 662 mosquitoes were trapped in 2021, the density was 130.79 mosquitoes captured by one person per hour. One hundred and eight Anopheles sinensis were caught, with an average density being 3.85 captured by one person per hour. Three larvae of Anopheles sinensis were caught in the rice fields, yet no larva was found in other water bodies. Conclusion Anopheles sinensis is the major malaria vector in Jiaozuo City, with wider distribution and density. Retransmission risks associated with imported P. vivax infection still remain in our areas after elimination of malaria.  Related Articles | Metrics

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Distribution characteristics analysis of snails in Susong County, Anhui Province from 2010 to 2021 SUN Ben-rong, FENG Xing-sheng, XIA Wu-hua, XIANG Xi-peng, YE Kai, XU Hai-bao, CAO Zhi-guo 2022, 20 (2):  83-85.  Abstract ( 403 )   PDF (1329KB) ( 628 )   Objective To understand the distribution trend of Oncomelania snails in Susong County for evidences to develop schistosomiasis control measures. Methods Snail data, including areas with snail prevalence, snail density and occurrence rate of live snails at individual frame, were collected from 2010 to 2021 in Susong County, and retrospectively analyzed for snail distribution across the county and in different endemic areas as well as the distribution trend of snails and the factors affecting the snail prevalence. Results The total area of Oncomelania hupensis in the county was maintained between 1 672.60 hm2 and 2 171.57 hm2, and appeared relatively stable from 2010 to 2021, during which the snail prevalence was 985.74-1 235.64 hm2 in marshland areas, with light fluctuation. The area with snail was 181.44-284.78 hm2 in lake regions, and tended to decrease, yet was 399.77-750.02 hm2 in inland regions, and tended to increase. The live snail density was 0.16-0.75 snails/0.11 m2 throughout the county, and the occurrence rate of live snails was 5.11%-11.78% at per frame. Live snail density remained relatively stable in the marshland and lake regions, whereas tended to increase from the lower level in inland areas. Live snail occurrence at individual frame was fluctuated considerably in diverse endemic areas. No infected snails have been found since 2013. Conclusion Snail prevalence remains relatively stable in Susong County, yet tends to spread in inland areas, which suggests that snail monitoring and control shall be focused in the inland regions in order to consolidate the prevention and control efforts achieved in previous years.  Related Articles | Metrics

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Analysis on the tuberculin test results in middle school freshmen in Shanxian County of Heze City LIU Hong-min, SUN Fu-sheng, WANG An, LIU Zeng-yan, LIU Zeng-fa 2022, 20 (2):  86-88,93.  Abstract ( 491 )   PDF (920KB) ( 735 )   Objective To analyze the tuberculin test results in the middle school freshmen in Shanxian County of Heze City in 2020 so as to understand the infection status of Mycobacterium tuberculosis in the students. Methods Freshmen were included from 3 boarding senior high schools and 37 boarding junior high schools under the administration of Shanxian County, and underwent tuberculin test (PPD test) from October 2020 to January 2021. The difference in positive and strong positive rates in students of different grades, genders and regions. Results Of the 15 994 students, positive rate and strong positive rate was 5.11% and 0.43%, respectively. No active tuberculosis infection was found. Positive rate and strong positive rate were 7.58%(547/7 219) and 0.82%(59/7 219), 3.08%(270/8 775) and 0.10%(9/8 775), respectively for high school freshmen and junior school freshmen, with statistical difference among students of different grades(χ２=165.484, 47.791, respectively; both P<0.05). The positive and strong positive rates were 7.47%(315/4 215) and 0.66%(28/4 215) for male high school students, 7.72%(232/3 004) and 1.03%(31/3 004) for high school females; 3.39%(61/4 754) and 0.08%(4/4 754) for male junior school students, 2.71%(109/4 021) and 0.12%(5/4 021) for junior school females, respectively. The difference was insignificant among genders (χ２=0.156, 2.925; χ２=3.337, 0.344, respectively, all P>0.05).  Students from urban areas had higher positive and strong positive rates than those from townships[4.95%(161/3 253) and 0.28%(9/3 253) vs. 1.97%(109/5 522) and 0]. The difference was significant(χ２=60.767, 15.293; both P<0.05). Conclusion PPD test is an important approach to tuberculosis screening in newly enrolled students, and of great significance in prevention and control of tuberculosis transmission among students in boarding schools, especially in high school students.  Related Articles | Metrics

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Laboratory study and analysis of one case of food poisoning caused by Salmonella enteritidis#br# OU Xiu-hua, QIU Yi-yan 2022, 20 (2):  89-90，98.  Abstract ( 338 )   PDF (872KB) ( 1014 )   Objective To identify the causes of food poisoning through the laboratory detection of pathogenic bacteria for evidence to timely manage the food poisoning and prevent the occurrence of similar events. Methods Two samples of suspected foods (fried sauce package and leftovers of fried sauce noodle) and three anal swabs were collected, and detected for Vibrio parahaemolyticus, enterotoxigenic Escherichia coli, Shigella, Salmonella and Staphylococcus aureus according to relevant national standards. Results Salmonella was detected in the leftovers of fried sauce noodles and 2 anal swabs. The biological code was 0017610545527210, and the serotypes were O9, Hg and Hm. Conclusion Laboratory studies confirmed that this food poisoning was caused by Salmonella from the fried sauce noodle. It is suggested that health supervision departments at all levels should strengthen monitoring and inspection of the food safety, and increase the publicity of the knowledge on food poisoning prevention among common population, especially in personnel involved in catering services, so as to keep from the occurrence of food-borne diseases. Related Articles | Metrics

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Analysis on the status of 152 advanced schistosomiasis patients in Tongcheng City, Anhui Province ZHU Xiao-lin, JIANG Long-zhi, ZHANG Ze-shan, WANG Ming-zhao, ZHANG Li 2022, 20 (2):  91-93.  Abstract ( 421 )   PDF (851KB) ( 616 )   Objective To analyze the status of registered patients with advanced schistosomiasis in Tongcheng City by the end of 2020 for scientific evidences to develop treatment measures for this group of patients. Methods Epidemiological investigation and analysis were performed on the existing cases of advanced schistosomiasis in Tongchen City, registered by the end of 2020 in the Parasite Control Information Management Platform of Chinese Center for Disease Control and Prevention. All cases were reviewed and identified by local experts, and underwent evaluation for the self-care ability. Results Totally, 152 cases of advanced schistosomiasis were registered in Tongchen City by the end of 2020. Eleven patients were identified in active screening between 2018 and 2020, which accounted for 7.24% of the totally reported cases. Seventy-three were males, and 79 females. The age ranged from 35 to 95 years, with an average of 74.5 years. The 152 cases were distributed in 13 towns/communitis, including Fangang, Xindu, Xizihu etc. The clinical classification was primarily involved in ascites (n=147) and splenomegaly(n=5). No cases of colon thickening and dwarf were found. The average diagnosis was 15 years (ranging from 1 year to 61 years) in the current 152 cases. All patients underwent treatment on hospitalization basis each year, and the treatment ranged from 16 sessions to one secession, with an average of treatment sessions by 10. Of the 152 patients, 128 were complicated with primary conditions. Among the 152 patients with advanced schistosomiasis, 143 were in self-care ability at grade 1; 4 at grade 2; 5 at grade 3. Conclusion The advanced schistosomiasis patients in Tongcheng City tends to be aged, and most of them are complicated with primary conditions. The findings suggest integrated treatment measures should be taken and strengthened in order to improve the quality of life for those patients.  Related Articles | Metrics

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Analysis on the value of automatic rapid microbial mass spectrometry detection system in rapid identification of Haemophilus influenzae QIN Shu-guo, XU Yuan-yuan, ZHAO Ping-ping, LI Hui-hui, LI Zhen-peng 2022, 20 (2):  94-95,102.  Abstract ( 508 )   PDF (909KB) ( 827 )   Objective To analyze the application value of automatic rapid microbial mass spectrometry detection system (MALDI-TOF) in the identification of Haemophilus influenzae (Hi). Methods A total of 1 135 aliquots of sputum samples were obtained from inpatients treated in our hospital between July 2020 and March 2021, 30 strains of Hi were extracted from different patients and characterized for the bacterial species using MALDI-TOF, automatic bacterial identification instrument (Vitek) and M-H agar drug susceptibility test, respectively. The results of the three methods in identifying Hi strains were recorded and compared. Results The detection rate of Hi strains was higher by MALDI-TOF than by Vitek (96.67% vs. 86.67%). The difference was insignificant (χ2=1.333, P=0.248), yet significant compared to M-H agar test (73.33%; χ2=5.143, P=0.023). Time consumption was the shortest by MALDI-TOF test (0.15±0.01) h, followed by Vitek method (17.04±5.93) h, yet M-H agar test consumed the longest time (36.78±9.58) h. The difference was significant among the three tests (F=18.258, P<0.001). Further paired comparison of the time consumption by three methods using LSD-t test also indicated statistical difference (all P<0.001). Conclusion Automatic rapid microbial mass spectrometry detection system can be higher clinical value in effectively identifying Hi, and obviously has advantages such as low cost, high accuracy, simple operation, automatic display and interpretation of the results as well as shorter detection time. Related Articles | Metrics

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Surveillance on disinfection and sterilization quality in medical institutions in Tongling City from 2017 to 2020 WANG Dao-fa, WANG Yuan-yuan, FANG Qiu, SHENG Wei-li, ZHANG Yi-hua 2022, 20 (2):  96-98.  Abstract ( 378 )   PDF (866KB) ( 748 )   Objective To understand the basic situation of disinfection quality in medical institutions within Tongling City for data support for the quality control of nosocomial infection and prevention of nosocomial infection events. Methods By the Hygienic Standard for Hospital Disinfection (GB 15982—2012) and Disinfection Technical Standard (2002 edition), different items were sampled on-site in different medical institutions Tongling area, and tested for the disinfection quality. Results The qualified rates of all samples collected between 2017 and 2020 were 99.09%, 99.18%, 98.83% and 98.63%, respectively, and the overall qualified rate was 99.04%. The difference was insignificant in between the four years (χ2=0.257, P>0.05). The qualified rates for the samples obtained from tertiary, secondary, primary and clinical medical institutions were 98.54%, 99.16%, 98.90% and 99.18%, respectively. There was no difference in the qualified rate of samples from different levels of medical institutions (χ2=0.291, P>0.05). In special comparison of hand disinfection effect, the pass rate (83.33%) was the lowest in primary medical institutions in 2017, and the lowest in tertiary medical institutions in 2018 and 2019, which was 90.91% and 88.89%, respectively. The unqualified items were associated with disinfection of the air and medical staff's hands. Conclusion The disinfection quality was maintained at better level in medical institutions in Tongling City from 2017 to 2020. Our findings suggest that medical institutions should strengthen surveillance over the quality of medical staff's hand hygiene and air disinfection, and competent departments should carry out irregular and random inspections to discover and solve potential problems in order to further improve the quality of hospital disinfection. Related Articles | Metrics

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Observation on the molluscicidal effect of 50% wettable powder of niclosamide ethanolamine salt on Oncomelania hupensis by immersion method in winter#br# WANG Wei-chun, ZHAN Ti, FAN Ze-han, XIANG Ke-xia, ZHU Ying-fu, DUAN Yong-mei, CAO Zhi-guo 2022, 20 (2):  99-102.  Abstract ( 570 )   PDF (1046KB) ( 1368 )   Objective To observe the efficacy of 50% wettable powder of niclosamide ethanolamine salt(WPNES) in killing Oncomelania hupensis by immersion method for the feasibility in snail control in cold seasons. Methods Outdoor observational group (-2-10°C) and indoor control group (19-25°C) were set to observe the effect of 50% WPNEs on snail killing by immersion technique in winter. The two groups were composed of 6 subgroups of concentrations by effective agent use(ranging from 1.000 0 mg/L, 0.500 0 mg/L, 0.250 0 mg/L, 0.125 0 mg/L, 0.062 5 mg/L to 0.031 3 mg/L) and a blank control group treated by dechlorination water. Mortality and LC50 of snails at 24, 48 and 72 hours in each group were observed and calculated. Results Mortality rates of snails exposed to various concentrations for 24, 48 and 72 h were lower in the outdoor observational group than in the indoor control group, yet LC50 tended to be approximate between the two groups with prolonged exposure time. By the exposure time at 72 h, the mortality rate of snail in outdoor observational group reached 100.00% at the concentration of 1.000 0 mg/L50 %WPNES, and the LC50 was 0.153 3 mg/L. This molluscicidal effect had met the requirements specified in NY/T 1617—2008 Efficacy test methods and evaluation of molluscicide for pesticide registration(Agricultural Industry Standard of the People's Republic of China). Conclusion The molluscicidal efficacy by immersion method using 50% WPNES under low temperature in winter season can meet the requirements of the industry standard, whereas the effect under field conditions needs to be further verified. Related Articles | Metrics

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Mechanisms of macrophage polarization and its role in common diseases WANG Yong-kang, LI Jia-yi, GUAN Fei, LEI Jia-hui 2022, 20 (2):  103-108,112.  Abstract ( 2422 )   PDF (1747KB) ( 9350 )   Macrophages are important components in human innate immune system. They are highly plastic and can differentiate into pro-inflammatory M1 and anti-inflammatory M2 under the stimulation of different microenvironmental signals. Polarization of macrophages is regulated by many signaling pathways and transcription factors, and M1/M2 phenotype are involved in the occurrence and development of a variety of diseases, such as tumor, type Ⅱ diabetes and severe acute pancreatitis, etc. In this paper, we reviewed the main signaling pathways related to macrophage polarization and its polarization state in common disorders, and described the importance of balance of macrophage polarization in maintaining homeostasis, with an attempt to provide new ideas for related clinical research.  Related Articles | Metrics

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Research progress on detection technology of Schistosoma japonicum cercariae in water body WEN Yu-song, LI Zhao-jun, HU Fei, LIN Dan-dan 2022, 20 (2):  109-112.  Abstract ( 333 )   PDF (888KB) ( 1027 )   Schistosomiasis is a zoonotic parasitic disease that endangers human health, and represents one of the important public health problems in our country. Rapid and accurate detection for Schistosoma japonicum cercariae in water is the key to early warning and accurate prevention and control of schistosomiasis. This article was aimed at reviewing current technologies and their application progress in detecting the infectivity of Schistosoma japonicum cercariae in water body. Related Articles | Metrics

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Investigation and analysis of the quality of preventive medicine undergraduate thesis in a medical college BAO Ling-zhi, LIANG Ya-li, MA Jie, CHEN Yu-juan, CHEN Bai-feng, WEN Yu-feng, ZHENG Lan-rong, HUANG Yue-e 2022, 20 (2):  113-116.  Abstract ( 329 )   PDF (859KB) ( 1161 )   Objective To investigate the quality of graduation thesis in preventive medicine undergraduates in a medical college, and analyze the existing problems for evidences to improve the quality in writing graduation thesis. Methods Theses were sampled from six classes of undergraduates majoring preventive medicine, graduated in 2019 in a medical college. Questionnaire survey was used to investigate items included the factors affecting determination of design of the research topic, time investment, effort and professional guidance from the teachers and awareness of the plagiarism in paper writing. Results A total of 137 copies of questionnaires were distributed in the 6 graduating classes, and 131 were effectively retrieved, with a recovery rate of 95.62%. Among them, 91.60%(120/131) of the graduates considered the research topic was not innovative; 56.49%(74/131) of the graduates completed their first writing in 3-6 months; Only 20.61%(27/131) of the students thought that the advisors played important roles in the completion of their theses; 51.15%(67/131) of the students know what plagiarism is. Conclusion Quality of the topic selection design needs improving in the graduation thesis of preventive medicine undergraduates; advisors should be competent in their own study fields so that they can give professional guidance to the students in paper writing; and the school authority should attach more importance to the plagiarism in students in composing their papers in order to improve the students’ awareness of correct paper writing as well as the quality of academic papers. Related Articles | Metrics

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Analysis on the operation status and effect of health science popularization of official account of Wechat for Parasitic and Tropical Diseases Prevention and Control in China ZHOU Dan-dan, CHEN Jin, ZHANG Qing-feng, JIA Xiao-kai, SUN Jia-jie, LUO Heng-feng, TAO Bi-ying, WANG Ru-bo 2022, 20 (2):  117-封三.  Abstract ( 335 )   PDF (1269KB) ( 1118 )   Objective To analyze the operation status and the effect of health science popularization of official account of Wechat for Parasitic and Tropical Diseases Prevention and Control in China for the application and prospect in promoting prevention and control of parasitic diseases and tropical diseases by means of new media. Methods The operational data on user characteristics and information communication ways in the official account of Wechat for Parasitic and Tropical Diseases Prevention and Control in China were collected from June 18, 2019 to October 25, 2021. Descriptive analysis methods was used to analyze the effects of health science popularization. Results By October 25, 2021, the number of subscribers in the account of Wechat for Parasitic and Tropical Diseases Prevention and Control in China reached 2 734. Female followers(53.80%) were greater than males, and the age ranged from 26 to 35 years(41.44%). The top five subscribers were from Shanghai, Guangdong, Jiangsu, Beijing and Shandong. One hundred and one pieces of articles were issued. The cumulative reading frequencies were 82 762, with an average of reading for 819 times for single article. All readings including 27 pieces of articles on health information of parasitic and tropical diseases. The cumulative reading frequencies were 16 680, with an average of reading for 618 times for single article. The reading rate of message delivery, shared transmission rate and reading completion rate were 8.06%, 800.49% and 56.26%, respectively. Users had higher interest in popular science articles on key parasitic diseases such as malaria and schistosomiasis. Conclusion The effect of health science popularization via official account of Wechat for Parasitic and Tropical Diseases Prevention and Control in China needs to be further improved. It is recommended to focus on increasing the number of graphic and textual information about key parasitic diseases, and develop publicity topics based on the field of tropical diseases and social hotspots in order to improve the efficacies in spreading the knowledge on prevention and control of parasitic and tropical diseases by expanding the followers through series of popular science activities.  Related Articles | Metrics