Clinical manifestations and pathogen characteristics in children admitted for suspected COVID-19 / 医学前沿

Coronavirus disease 2019 (COVID-19), which is caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), has spread around the world. However, approaches to distinguish COVID-19 from pneumonia caused by other pathogens have not yet been reported. We retrospectively analyzed the clinical data of 97 children with probable COVID-19. A total of 13 (13.4%) patients were confirmed positive for SARS-CoV-2 infection by nucleic acid RT-PCR testing, and 41 (42.3%) patients were found to be infected with other pathogens. Notably, no pathogen was detected in 43 (44.3%) patients. Among all patients, 25 (25.8%) had familial cluster exposure history, and 52 (53.6%) had one or more coexisting conditions. Fifteen (15.5%) patients were admitted or transferred to the PICU. In the 11 confirmed COVID-19 cases, 5 (45.5%) and 7 (63.6%) were positive for IgM and IgG against SARS-CoV-2, respectively. In 22 patients with suspected COVID-19, 1 (4.5%) was positive for IgG but negative for IgM. The most frequently detected pathogen was Mycoplasma pneumonia (29, 29.9%). One patient with confirmed COVID-19 died. Our results strongly indicated that the detection of asymptomatic COVID-19 or coexisting conditions must be strengthened in pediatric patients. These cases may be difficult to diagnose as COVID-19 unless etiologic analysis is conducted. A serologic test can be a useful adjunctive diagnostic tool in cases where SARS-CoV-2 infection is highly suspected but the nucleic acid test is negative.

Retrospective investigation of schistosomiasis endemic situation in Hunan Province / 中国血吸虫病防治杂志

Objective To understand the dynamic rules of schistosomiasis endemic situation before and after reaching the criteria of schistosomiasis transmission controlled or transmission interrupted,so as to provide the evidence for improving schis-tosomiasis control. Methods Wuling District,Xihu District and Linli County were selected and investigated retrospectively to collect the schistosomiasis epidemiological information 10 years before they reached the criteria of transmission controlled and the subsequent years until 2008. A database of retrospective investigation was established for analyzing the trends and rules of changes of the Oncomelania hupensis snail status and infection status of cattle and human. Results In Wuling District,the en-demic situation was declining,and no schistosome infection persons,animals and snails were found after 1974. There was no re-bound until 2008. In Xihu District,the endemic situation reached the criteria of transmission controlled in 1997,and the endem-ic situation was stable. The human infection rate was positively correlated with the area of infection snails(r=0.584,P<0.05). In Linli County,there were no snails,no infected persons and cattle twice,but 2 endemic rebounds,and there were positive corre-lations between the densities of living snails and the infection rates of human and animal during the endemic rebound period. Conclusion The snail status is an important indicator of schistosomiasis endemic rebound. Therefore,the snail control is one of the most important schistosomiasis control measures.

The evidences for formulation of schistosomiasis control and elimination cri-teria:results from a large scale of retrospective investigations / 中国血吸虫病防治杂志

In this study,we summarized the results from the retrospective investigation on endemic situation of schistosomia-sis that was implemented in nine provinces(autonomous region),China in 2009,demonstrated the role of these retrospective in-vestigations in accelerating the progress of schistosomiasis control in China,and clarified the great significance of the investiga-tion for summarizing the experiences for the control of schistosomiasis,and analyzing the changing patterns and affecting factors of endemic status of schistosomiasis in China. In addition,these retrospective investigations provide reliable evidence for revis-ing the Criteria of Schistosomiasis Control and Elimination,and for the more accurate and scientific assessment of the effec-tiveness of schistosomiasis control in China.

Retrospective investigation on endemic situation of schistosomiasis in Hubei Province / 中国血吸虫病防治杂志

Objective To explore the changing rules of schistosomiasis infection and Oncomelania hupensis snail situation in areas where schistosomiasis transmission was controlled or interrupted or transmission rebounded after the interruption. Meth-ods Daye City,Wuxue City and Jingshan County were selected and investigated retrospectively to collect the schistosomiasis epidemiological information 10 years before they reached the criteria of transmission controlled and the subsequent years until 2008. The database of retrospective investigation was established for analyzing the trends and rules of the changes of snail status and human infection status. Results In Daye City,there was no snail areas and schistosomiasis patients and cattle after reach-ing the criteria of transmission interrupted in 1987. The infection rate of residents were positively correlative with the infection rate of cattle and snail areas(r=0.865,0.843,P<0.01). In Wuxue City,the proportion of snail areas occupying the historic snail areas kept a steady from the transmission controlled to transmission interrupted,but it began to rebound to the highest level in the history(8.93%)after the transmission interrupted for 3 years. In Jingshan County,the infection rates of residents and cat-tle were all stable from 1%to 2%after the transmission controlled. The proportion of snail areas occupying the historic snail ar-eas was rebounded from 1.63% in 1985 to 21.50% in 2008,and the densities of living snails rebounded from 2005. Conclu-sions The infected snails could be the sensitive indicator of the rebound of snail situation and human infection. The elimination of schistosomiasis still depends on the control of snail areas,including strengthening the infected snail control.

Retrospective investigation for endemic situation of schistosomiasis in Zheji-ang Province / 中国血吸虫病防治杂志

Objective To analyze the changing rules of schistosomiasis endemic situation before and after reaching the crite-ria of schistosomiasis transmission controlled or transmission interrupted in Zhejiang Province,so as to provide scientific evi-dence for schistosomiasis contro1. Methods Xiuzhou District and Zhuji City were selected and investigated retrospectively to collect schistosomiasis epidemiological information 10 years before they reached the criteria of transmission controlled and the subsequent years until 2008. The database of retrospective investigation was established for analyzing the trends and rules of changes of Oncomelania hupensis snail status and schistosome infection status of cattle and human. Results The snail status and schistosome infection kept a steady declining before reaching the criteria of transmission controlled ,and there were positive correlations between the area of living snails and the infection rates of human and animal in two places(rhuman=0.764,P<0.01, rcatl e=0.709,P<0.01;rhuma=0.775,P<0.01,rcatl e=0.676,P<0.01);No local infection person and animal except residual snails, and found 7 cases of imported infection source were found after reaching the transmission interruption. Conclusion The epi-demic status of schistosomiasis in zhejiang is stable after reaching the criteria of transmission interruption ,and residual snail are easy to re-found and spread under some certain conditions,and some imported cases were found sometimes,which may in-crease the risks for re - emergence of schistosomiasis. The integrated solidification strategy with emphasis on control of residu-al snails and imported cases should be taken in the areas of transmission interruption in the future.

Retrospective Investigation on Hospitalized Records of Uygur Medical Treatment for Insomnia / 中国中医药信息杂志

Objective To retrospective analyze the drug characteristic and clinical effect of Uygur medicine for treating insomnia. Methods Totally 234 cases of insomnia in hospitalized records were selected by record statistical system of HIS. Patients’ general conditions, Uygur medicine utilization rate, combination medication, pathogenic humoral, treatment course and therapeutic effect were retrospectively analyzed. Results Insomnia patients were mainly 30-60 years old (81.82%). Abnormal Sawda and Balgam were the main pathogenic humoral, accounted for 54.27% and 28.63% respectively. And 85 kinds of preparation were involved, including Yinao Wusiti Kudousi syrup and Muniziqii Sawda mixture, 213 and 163 times of frequency (91.03% and 69.66%) respectively. Most of patients used 5-12 kinds of preparation, accounted for 89.13%, and treated for one week to one month, accounted for 73.16%. Conclusion The Uygur medicine for insomnia is unique, and has good clinical efficacy and safety.

Prevalence of childhood sexual abuse among 2508 college students in 6 provinces of China / 中华流行病学杂志

Objective To assess the prevalence of childhood sexual abuse (CSA) in college students and to explore the association of CSA with youth mental health problem. ethods A retrospective survey was conducted among 2508 students (females 1360, males 1148) in Nov. 2003to Mar. 2004. The students were from 6 colleges/universities in Beijing, Hebei, Shanxi, Jiangsu,Shaanxi and Anhui provinces of China. Results Of the 2508 students, 24.8% of females and 17.6%of males reported one or more types of nonphysical contact CSA (females 20.0% vs.males 14.6%) or/and physical contact CSA (females 14.1% vs. males 7.8% ) before the age of 16 years. Risk of any CSA was not associated with the existence of siblings (one-child vs. two-or more child families),rural/non-rural residence during childhood, or parental education. Compared with their peers who had no CSA, the students with CSA showed significantly higher mean scores of psychological symptoms of somatization, obsessiveness, interpersonal sensitivity, depression, anxiety, hostility, phobic anxiety, paranoid ideation and psychoticism. Conclusion The problem of CSA was not uncommonand there was a significant correlation between CSA experience and students mental health problems.More attention should be paid on CSA prevention and provision of health services for the victims.

Hospital Infection in Patients with Chronic Severe Hepatitis B:Distribution Characteristics and Control Measures / 中华医院感染学杂志

OBJECTIVE To investigate and control the risk factors about hospital infection in patients with chronic severe hepatitis B. METHODS Totally 466 hospitalized patients with chronic severe hepatitis B in our hospital from Jan 2001 to Dec 2007 were studied retrospectively. RESULTS The total incidence of hospital infection was 20.1% for inpatients with chronic severe hepatitis B,the infection located as follows:56 patients were in lower respiratory tract (59.6%);17 patients in upper respiratory tract (18.1%);7 patients with bacteremia (7.4%);3 patients in urinary tract (3.2%);7 patients in gastrointestinal tract (7.4%);and 1 patients was in cutis tissue (1.1%). CONCLUSIONS The knowledge about the on infection risk factors liver disease must be strengthened by hospital medical staff of the use of antibiotics must be strict controlled in principle,operation must be aseptic,the concept of prevention standards must be enhanced,and the primary disease must be actively treated,all these can effectively reduce infection in hospital.

Survey of Infective Disease in Community / 中华医院感染学杂志

OBJECTIVE To investigate the status of community health services and offer a scientific basis for making a direction of community to control the infective disease.METHODS Totally 1503 outpatients were investigated retrospectively for infective diseases in community.RESULTS The average age of these patients was 65,the number of females was much more than males.The most frequently infective diseases were upper respiratory tract infection,bronchitis,periodontitis,etc.CONCLUSIONS It′s necessary to strengthen the community health service and to establish an effective system of health service.The patients must cultivate a health habit of life,they not only need in time diagnosis and treatment,but also enhance own knowledge about health and disease prevention.

Pathogen Spectrum Distribution in Respiratory Tract Infection: A Retrospective Investigation During Past Twelve Years / 中华医院感染学杂志

OBJECTIVE To investigate the pathogen spectrum distribution in respiratory tract infection during the past twelve years.METHODS The method was retrospectively analyzed.RESULTS A total of 7596 strains in(clinical) specimens were isolated.It showed that the isolating rate of Gram positive cocci,Gram negative bacilli and fungis was 34.56%,48.62% and 10.10%,respectively.The isolating rate of Gram positive cocci was 25.96% between Jan 1991 to Dec 1996,the most commonly isolated bacteria of which were Staphylococcus(aureus),Streptococcus pneumoniae and ?-hemolytic streptococci,with isolating rates being 6.85%,4.84 % and(4.26%),(respectively);the isolating rate of Gram negative bacilli was 63.33%,the most commonly isolated bacteria of which were Pseudomonas aeruginosa,Escherichia coli and Klebsiella pneumoniae,with isolating rates being(8.46%),7.97% and 7.09%.The isolating rate of Gram positive cocci was 37.91% between Jan 1997 to Dec 2002,the most commonly isolated bacteria of which were S.aureus,?-hemolytic streptococci and Str.pneumoniae,with isolating rates being 10.28%,7.02% and 6.68%,respectively;the isolating rate of Gram negative bacilli was 47.64%,the most commonly isolated bacteria of which were P.(aeruginosa),E.coli and K.pneumoniae,with isolating rates being 8.19%,7.07% and 5.21%,respectively.The isolating rate of fungi was 6.06% and 11.43%,respectively during the two stages,the most commonly pathogen of which was Candida albicans.(CONCLUSIONS) The pathogen spectrum distribution in respiratory tract infection during the past twelve years has changed significantly.The isolating rate of Gram positive cocci and fungi,respectively is gradually increasing,but that of Gram negative bacilli is decreasing.