Objective To summarize the experience of epidemic prevention in order to offer the first-hand data for reconstruction after the earthquake and epidemic control and prevention in the active seismic zone. Method We collected and analyzed the data of epidemic control and prevention and summarized their strengths and weaknesses. Results Of the 13 counties in Aba Prefecture, 12 were affl icted with 2 worst-hit counties and 5 worse-hit disaster areas. A total of 20 233 people were dead and 7 873 people were missing. Health system was severely damaged. Aba Center of Disease Control and Prevention started the contingency plan and sent 4 epidemic prevention teams to the disaster areas. With the combination of local materials and external aids, the epidemic prevention network of county, township and village was established. (1) Environment cleaning and el imination: up to August 27, 2008, 2 591 group times of teams involving 88 298 person times and 5 294 set times of vehicles were allocated. Disinfection area covered 18 181.3 m2 including 14 132 dumps, 33 271 cesspits and 154 391 breeding grounds of mosquitoes, fl ies and mice. (2) Critical supervision for the safety of drinking water and food: up to June 20, 21 central ized and 1 032 dispersed water supply sources were restored. We monitored 829 drinking water samples, among which 594 were qual ified with the qual ified rate of 66.59%. (3) A total of 86 396 people were resettled in 17 temporary sites. (4) Wild dogs were killed in Kala-azar epidemic areas. Mosquitoes, flies and mice were supervised once a week. (5) Disease supervision: A total of 762 cases in 15 legal infectious diseases were found within 90 days after the earthquake, and no death was found. No outbreak of infectious epidemic situations and burst publ ic health events was reported. A total of 57 157 Hepatitis A vaccinations were inoculated in the children aged from 18 months to 12 years old and 16 268 in children aged from 13 to 16 years old, medical staff, mil itary personnel and first-l ine workers. A total of 4 435 Japanese encephal itis vaccinations were inoculated in people in Xiaojin county. On June 15, routine inoculation cl inic recovered and on July 1, expansive inoculation was started on schedule. Conclusion Phased victory is gained in epidemic control and prevention in Aba Prefecture, although it is only a latter-wit. It is suggested that a long-term system of the earthquake disaster as well as human and environmental protection should be reconsidered through the first-hand data of anti-epidemic measures of the Wenchuan earthquake.
When a clustered coronavirus disease 2019 epidemic occurs, how to prevent and control hospital infection is a challenge faced by each medical institution. Under the normalization situation, building an effective prevention and control system is the premise and foundation for medical institutions to effectively prevent and control infection when dealing with clustered epidemics. According to the principles of control theory, medical institutions should quickly switch to an emergency state, and effectively deal with the external and internal infection risks brought by clustered epidemics by strengthening source control measures, engineering control measures, management control measures and personal protection measures. This article summarizes the experience of handling clustered outbreaks in medical institutions in the prevention and control of coronavirus disease 2019, and aims to provide a reference for medical institutions to take effective prevention and control measures when dealing with clustered outbreaks.
ObjectiveTo analyze the epidemic characteristics of the notifiable infectious diseases in West China Hospital of Sichuan University, so as to guide the prevention, control and treatment of notifiable infectious diseases in the hospital and other medical institutions. MethodsDescriptive analysis was used to make statistics and analysis on the data of notifiable infectious diseases in West China Hospital of Sichuan University from 2015 to 2020, and the reporting situation, disease classification and transmission route were summarized. ResultsA total of 21 382 cases of notifiable infectious diseases with 32 types were reported. There was no class A infectious disease reported. There were 16 305 cases (76.26%) of class B infectious diseases and 5 077 cases (23.74%) of class C infectious diseases. The top 5 infectious diseases were pulmonary tuberculosis, influenza, syphilis, acquired immunodeficiency syndrome (including human immunodeficiency virus infection), and viral hepatitis type B. From the trend of the infectious disease reporting, the number of notifiable infectious diseases showed an upward trend from 2015 to 2020. ConclusionsThe report of notifiable infectious diseases in West China Hospital of Sichuan University from 2015 to 2020 mainly focuses on class B infectious diseases and class C infectious diseases. In the future, the prevention and control of infectious diseases should focus on respiratory infectious diseases, blood borne and sexually transmitted infectious diseases.
Objective To learn and evaluate the effect of health education of schistosomiasis in the Three Gorges Reservoir Area, so as to provide scientific basis for establishing the comprehensive prevention and control model in potential epidemic area of schistosomiasis. Methods Through adopting the multi-stage stratified cluster sampling method, the questionnaires were distributed to residents selected randomly from the demonstration, inside and outside control areas. The survey data were input with EpiData 3.0 software by two reviewers, and the differences among groups were analyzed by using SPSS 18.0 software to further evaluate the effect of health education of schistosomiasis. Results All the questionnaires distributed to 1 420 residents were retrieved (100%). The results of analysis showed that for the residents in the demonstration area, the average score of being aware of schistosomiasis prevention was (7.51±2.89), which was markedly higher than those in the inside (2.52±2.97) and the outside (3.13±3.51) control areas, with significant differences (Plt;0.05); and the passing rates were 78.15%, which was also obviously higher than those in the inside (17.26%) and the outside control areas (32.16%), with significant differences (Plt;0.05). Conclusion The health education of schistosomiasis can improve residents’ knowledge about schistosomiasis prevention, and it is very important to prevent and control the potential prevalence of schistosomiasis in the Three Gorges Area.
The Wenchuan Earthquake caused severe injuries and deaths as well as subsequent serious potential risks to public health and hygiene in the worst-hit areas. There were 16 casualties in the Mianyang CDC system and the township amp; county CDC networks were destroyed in the worst-hit counties after the earthquake. The Mianyang CDC quickly launched its emergency response plan for major natural disasters within two hours after the earthquake, prepared and improved the technical guide for disease prevention after the earthquake and rapidly sent out quick response team. With the help of CDC aid teams across the country, Mianyang CDC successfully disinfected and buried 6,767,568 corpses, and disposed of millions of animal carcasses.They also disinfected and sterilised an area of 932.595 million square metres, eradicating 3,514,166 fly and mosquito breeding places and treating 5,254,228 cesspit times. By June 30, they had examined 11,092 water supply units and carried out disinfection of 319.7997 million cubic metres of drinking water. Besides, dynamic monitoring for water quality in the four worst-hit areas in Mianyang urban areas. They organised hygienic enforcement supervisors to develop food safety inspection, regulated catering services of the centralised settlements, destroyed spoiled and expired food and vegetables. The authorities prevented the masses from eating dead poultry or meat from carcasses to ensure no occurrence of food poisoning after the earthquake. Standard administration of the 170 settlements of the earthquake-afflicted people and 132 settlements of evacuated people was carried out in accordance with the rules of "Six Provisions and Four Reinforcements" and this would ensure no recurrence of public health events in the settlements. On Day 3 (May 15) after the earthquake, they established a real-time monitoring and report network of the epidemic situation after the earthquake and monitored diseases and symptoms of the people in the resettled region to ensure no occurrence of major epidemic cases. The monitoring results showed that the number of infectious disease cases was comparable to that in the previous years. Moreover, they carried out intensive vaccination with hepatitis A vaccine in children 41196 person times, stored 100,000 person oral cholera vaccine and monitoring for new sexually transmitted diseases. A total of 10.1265 million copies of publicity materials were organised printed and distributed. They developed large-scale health education and a massive patriotic health campaign by means of the media and organised the masses to engage in sanitation and hygiene as well as controlling flies, mosquitoes and rats in the temporary earthquake-proof places. Under the unified command of the Mianyang emergency response headquarters, the centers for health and epidemic control and prevention at various levels of disaster relief continued to dispose of carcasses and disinfect and bury corpses as well as monitor water quality, so as to ensure the secondary disasters could be prevented in advance.
The coronavirus disease 2019 (COVID-19) epidemic has had a serious impact in the world. In the absence of vaccines and therapeutic drugs, disinfection has become an important technical means to block the spread of the virus. By analyzing the characteristics of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), we studied a series of disinfection technologies for COVID-19. During the outbreak of COVID-19, Jinan Second Center for Disease Control and Prevention disinfected the houses of the cases to be investigated in a community. The effectiveness of the disinfection technology was verified through the process of disinfection preparation, sampling before disinfection, field disinfection, sampling after disinfection and evaluation of disinfection effect. Compared the data before and after disinfection, the killing rate of the total bacterial colonies in the air and on the surface of the object was more than or equal to 90%, and no SARS-CoV-2 was detected after disinfection. The results show that the disinfection effect of the disinfection technology meets the standard. Finally, through the analysis of the wrong way of disinfection and the harm of over disinfection, the importance of scientific disinfection and precise disinfection are emphasized, and the research has a good guiding value for prevention and control of the epidemic.
Objective To understand the impact of an infection risk control measures implemented in the non-clinical areas of a hospital on the visitors during the coronavirus disease 2019 (COVID-19) epidemic period, in an attempt to provide scientific evidence for the improvement and optimization of subsequent prevention and control measures. Methods The convenience sampling method was used to investigate and analyze all the personnel who came to the hospital for treatment or work on February 22, 2020. Collect the influence of the personnel coming to the hospital on the sense of security, medical behavior (work) and the acceptance of the measures arising from the implementation of infection control measures such as sub-regional management of people and vehicles, body temperature screening during admission, and sub-channel management of hospital visitors in the non-clinical areas of the hospital. ResultsA total of 1 098 patients/family members were included. 70.13% (770/1 098) of the patients/family members thought that visiting the hospital during the COVID-19 epidemic would make them feel uneasy; 90.26% (991/1 098) of the patients/family members could accept the body temperature screening during admission, 96.99% (1 065 / 1 098) of the patients/family members could accept the sub-regional management of people and vehicles, and 100.00% (1 098/1 098) of the patients/family members could accept the sub-channel management of hospital visitors in the non-clinical areas of the hospital; 71.22% (782/1 098) of the patients/family members thought that the peripheral prevention and control measures had increased the sense of security in medical treatment, and they would continue to choose this hospital for the next time if necessary. A total of 2 543 employees were included. 37.55% (955/2543) of the employees felt uneasy because they were afraid of being infected in the hospital; 93.12% (2 368/2 543) of the employees could accept the establishment of a dedicated channel for staff admission, 99.25% (2 524/2 543) of the employees could accept the temperature screening at the entrance of the dedicated channel, and 97.48% (2 479/2 543) of the employees could accept the subregional management measures. 82.54% (2 099/2 543) of the employees thought that the peripheral prevention and control measures would not affect their work. Conclusions Implementing a series of prevention and control measures in the non-clinical areas during the emergency response state can improve the sense of security of the patients, family members of the patients and employees who come to the hospital to some extent. In the future, measures such as strengthening publicity and education, improving facilities, perfecting the planning and design, providing the complete information, and strengthening supervision, can be taken to further optimize the risk control of infection in non-clinical areas and improve the acceptance of personnel coming to the hospital.
Taking the actual situation of the undergraduate medical education in West China School of Medicine, Sichuan University as the real-world reference, combining with literature review, this article analyzes the internal strengths and weaknesses, as well as the external opportunities and threats of the novel teaching system in medical education which combines the online-merge-offline (OMO) approach with inquiry-small class model, and provides deep insights into the opportunities and challenges of the teaching system after matching the influential factors based on the SWOT-CLPV matrix model. Based on these analyses, this article discusses the application of the teaching system combining the OMO approach with inquiry-small class model in medical education in the post-epidemic era, so as to provide a reference and guidance for further popularizing the teaching model and enhancing the quality of medical education to a new level.
Objective To analyze the prevalence and influencing factors of dyslipidemia among permanent residents in Longquanyi district of Chengdu for prevention and control of dyslipidemia. Methods Permanent residents in Longquanyi district were selected as research objects by convenient sampling method between November 2021 and February 2022. The dyslipidemia rate in the population was analyzed, and the influencing factors of dyslipidemia were analyzed by univariate and multivariate logistic regression. Results A total of 11 408 permanent residents were included. Among them, 3650 people had dyslipidemia, with a prevalence rate of 32.00% (3650/11408). The prevalence rates of high total cholesterol, high triglyceride, high low-density lipoprotein cholesterol, and low high-density lipoprotein cholesterol were 19.30% (2 202/11 408), 13.38% (1 526/11 408), 5.05% (576/11 408) and 0.73% (83/11 408), respectively. Multivariate logistic regression analysis showed that female, age≥30 years old, drinking, overweight / obesity, hypertension, diabetes and hyperuricemia were independent risk factors of dyslipidemia among permanent residents (P<0.05). Conclusions The prevalence of dyslipidemia in Longquanyi district is high, mainly with high total cholesterol and high triglyceride. Gender, age, drinking, body mass index, and the levels of blood pressure, blood glucose and blood uric acid are the factors affecting the incidence of dyslipidemia among permanent residents. Early intervention for high-risk groups with dyslipidemia should be adopted to effectively reduce the risk and burden of dyslipidemia.
Objective To analyze the report status of the pulmonary tuberculosis in the elderly people aged ≥ 65 years old. Methods The reported data of senile pulmonary tuberculosis and the whole population pulmonary tuberculosis at West China Hospital of Sichuan University between January 1, 2012 and December 31, 2022 were retrospective selection. Descriptive methods were used to analyze the different characteristics and etiology of senile pulmonary tuberculosis. Results A total of 2 182 senile pulmonary tuberculosis were reported. The report was mainly positive reports of etiology [1091 cases (50.00%)], and the component ratio increased year by year (χ2=49.986, P<0.001). The proportion of senile pulmonary tuberculosis in the whole population pulmonary tuberculosis increased from 17.62% in 2012 to 29.04% in 2022, and the difference between different years was statistically significant (χ2=40.261, P<0.001). In the reported patients, the male to female ratio was 2.30∶1. There were 7 cases of rifampicin resistant, 1 091 cases of etiology positivity, 674 cases of etiology negativity, and 410 cases of no etiology results. The number of reported cases in the age group of 65-74 was higher than that in the age group of 75 and above. The seasonal distribution was not obvious (concentration<0.3). The patients were mainly from other cities of the province [919 cases (42.12%)], and the Department of Pulmonary and Critical Care Medicine (including the Tuberculosis Ward) was reported the most [1439 cases (65.95%)]. The majority of occupations were retired individuals [952 cases (43.63%)]. Conclusions From 2012 to 2022, the prevention and treatment of senile pulmonary tuberculosis has achieved some results, but the overall burden is still very heavy. The detection of senile pulmonary tuberculosis should be strengthened.