No abstract available.
Cross Infection* ; Epidemiology*

China ; epidemiology ; Cross Infection ; epidemiology ; Hospitals ; Humans

Study on prevalence of HP(+) infection and the relationship between HP(+) among children and members in a multi-generation family through 189 children and 344 adults of 99 households. The results showed that, HP seropositivity was 67.4% in adults and 41.3% in children. Some risk factors were identified such as: The seropositive mother was the highest risk factor for HP seropositivity in children and the relationship between HP(+) among children and their mother was independent with other factors. The seropositive father increased HP infective risk in children, but seropostivity in mother was more important. Children's seropositivity was significantly increased in households with  3 children, in those with > 4 persons. No association was found between HP seropositivity in children and that in their grandparents and relatives
Helicobacter pylori ; Cross Infection ; Family Characteristics ; epidemiology

The study data of many foreign authors show extent and level of hospital infection complication in intensive care unit trend to develop. This situation can be worse in our country. At the Central Military Hospital 108, the prevalance isolated of bacteria is 50.3%. The positive rate from urine culture, blood culture and bronchial fluid are 20.04%, 10.62% and 12.45% respectively. The etiological agents of nosocomial infection are usually caused by gram-negative bacterium, in which E.Coli and Klebsiella group, Enterobacter, Serratia, then Pseudomonas are the most commonly. Staphylococcus are the second most frequently encounted agent, then Streptococci and Enterococci. Methicillin resistant S.aureus is common issue in intensive care units, so that each hospital and intensive care unit should more pay attention to prevent effectively hospital infection for patients of intensive care unit
Cross Infection ; Epidemiology ; Intensive Care Units

Cross Infection ; epidemiology ; etiology ; prevention & control ; Humans

Academic Dissertations as Topic ; Cross Infection ; epidemiology ; prevention & control ; Infection Control

OBJECTIVETo provide basic and direction for nosocomial infection prevention and control through evaluation the distribution of nosocomial infection pathogens and understand current situation of pathogens among general hospital in China.

METHODSArticles were searched and collected from CBM, CNKI,VIP database and Wanfang database published between creating database to March. 2013 about investigation of nosocomial infection. Those literatures were screened and extracted according to the inclusion and exclusion criteria by two reviewers independently. The analysis of pathogens distribution was performed by using comprehensive Meta analysis software and stratified by factor as year, hospital level and region of the study. The distribution rate of different pathogens were merged according to statistical tests for the heterogeneity test.

RESULTSThe 345 trials were included. The results show 1)the pooled distribution rates of common pathogens in 1987-2000 were as follows:18.6% (95% CI:13.7%-24.9%), 18.1% (95% CI:15.4%-21.0%), 14.8% (95% CI: 12.2%-17.9%), 5.2% (95%CI:4.1%-6.6%) for Fungus, Staphylococcus, Pseudomonas, and Klebsiella respectively;the pooled rates of common pathogens in 2001-2012 were as follows:17.6% (95% CI: 16.4%-18.8%), 15.0% (95% CI:14.2%-15.8%), 13.9% (95% CI:13.1%-14.7%), 10.4% (95% CI: 9.9%-11.0%)for Fungus, Staphylococcus, Pseudomonas, and Klebsiella respectively. 2)The pooled distribution rates of pathogens in second and below grade hospital were 3.2% (95%CI:0.3%-29.9%), 4.7% (95% CI:3.4%-6.3%), 7.2% (95% CI:1.7%-26.1%)for Mycoplasma, Shigella and Alkaligenes respectively;the pooled distribution rates of pathogens in third grade hospital were 1.1% (95% CI: 0.1%-15.4%), 1.8% (95%CI:0.6%-5.1%), 4.3% (95%CI:2.3%-8.0%)for Mycoplasma, Shigella and Alkaligenes respectively. 3)The pooled rate of Mycoplasma for Yangtze River Economic Area was 14.3% (95%CI:2.0%-58.1%)and for Southwest Economic Area was 0.3% (95%CI:0.1%-1.1%). The pooled rate of Corynebacterium for Yangtze River Economic Area was 0.4% (95%CI:0.1%-1.4%)and for Southeast Economic Area was 9.5% (95% CI:2.4%-31.1%). The pooled rate of Haemophilus for Northern Economic Area was 0.5% (95%CI:0.2%-0.9%)and for Southeast Economic Area was 9.2% (95% CI:7.3%-11.6%). The pooled rate of Salmonella for Yangtze River Economic Area was 6.3% (95% CI:4.6%-8.6% ) and for Southeast Economic Area was 0.4% (95% CI:0.1%-3.0% ).

CONCLUSIONThe common nosocomial infection pathogens were Fungus, Staphylococcus, Pseudomonas and Escherichia among general hospitals in China. A remarkable note is that Klebsiella was increased significantly in recent years and becomes one of the most common pathogens. There were differences in the distribution rate of nosocomial infection pathogens among general hospitals between levels and regions in China.

China ; epidemiology ; Cross Infection ; epidemiology ; microbiology ; Hospitals, General ; Humans

OBJECTIVETo characterize the time distribution of the incidence of Enterobacter cloacae nosocomial infections in children hospitalized in the pediatric intensive care unit (PICU) of the First Affiliated Hospital of Xinjiang Medical University.

METHODSThe clinical data of children with Enterobacter cloacae nosocomial infections in the PICU of the First Affiliated Hospital of Xinjiang Medical University between January 2010 and December 2013 were collected. The monthly number of cases of Enterobacter cloacae nosocomial infections was recorded, and time series analysis was performed using SPSS 21.0 software. The obtained prediction model was verified using the data from January to June in 2014.

RESULTSA total of 157 cases of Enterobacter cloacae nosocomial infections were reported in the PICU between January 2010 and December 2013, including 33 cases in 2010, 35 cases in 2011, 37 cases in 2012, and 52 cases in 2013. Time series analysis of the monthly number of cases of nosocomial infections reveals a fitted curve with a clear pattern of seasonal variation (R2=0.702, Ljung-Box Q(18)=36.021, P=0.004), with peaks in May, June, and July. The verification using the data from January to June in 2014 showed small differences between the predicted values and the actual values.

CONCLUSIONSIn the PICU of the First Affiliated Hospital of Xinjiang Medical University, the incidence of Enterobacter cloacae nosocomial infections is high in May, June, and July every year. The prediction model is accurate and can provide a reference for infection prevention.

Child ; Cross Infection ; epidemiology ; Enterobacter cloacae ; Enterobacteriaceae Infections ; epidemiology ; Hospitalization ; Humans ; Intensive Care Units, Pediatric ; Seasons

Cross Infection ; epidemiology ; nursing ; Disease Outbreaks ; Disinfection ; Humans ; Severe Acute Respiratory Syndrome ; epidemiology ; nursing ; prevention & control

OBJECTIVETo describe a hospital outbreak of severe acute respiratory syndrome (SARS) and summarize its clinical features and therapeutic approaches.

METHODSThe outbreak started with a SARS patient from the community, and a total of 96 people (76 women and 20 men, mean age (29.5 +/- 10.3) years, 93.8% of whom were health care workers) who had exposure to this source patient became infected in a short time. Clinical data in this cohort were collected prospectively as they were identified.

RESULTS(1) The incubation period ranged from 1 to 20 (mean: 5.9 +/- 3.5) days. The duration of hospitalization was (17.2 +/- 8.0) days. (2) The initial temperature was (38.3 +/- 0.6) degrees C, while the highest was (39.2 +/- 0.6) degrees C (P < 0.001), with fever duration of (9.0 +/- 4.2) days. (3) Other most common symptoms included fatigue (93.8%), cough (85.4%), mild sputum production (66.7%), chills (55.2%), headache (39.6%), general malaise (35.4%) and myalgia (21.9%). (4) The radiographic changes were predominantly bilateral in the middle or lower lung zones. The number of affected lung fields was 1.2 +/- 0.8 on presentation, which increased to 2.9 +/- 1.4 after admission (P < 0.001). The interval from the beginning of fever to the onset of abnormal chest radiographs was (3.5 +/- 2.3) days, which increased in size, extent, and severity to the maximum (6.7 +/- 3.5) days later. The time before the lung opacities were basically absorbed was (14.9 +/- 7.8) days. (5) Leukopenia was observed in 67.7% of this cohort. The time between the onset of fever and leukopenia was (4.4 +/- 2.3) days, with the lowest white blood cell count of (2.80 +/- 0.72) x 10(9)/L. (6) The lowest arterial oxygen saturation was (94.8 +/- 3.1)% with supplementary oxygen. (7) Antibiotical therapies included tetracyclines (91.0%), aminoglycosides (83.3%), quinolones (79.2%); 18.8% of the patients received a combination of tetracyclines and aminoglycosides, while 11.5% received a combination of tetracyclines and quinolones, and 63.5% received a combination of tetracyclines, aminoglycosides and quinolones. Vancomycin was used in 13.5% of the patients. (8) 68.8% of the patients were treated with methylprednisolones for a mean interval of (4.9 +/- 2.4) days. The initial dose was (67.3 +/- 28.2) mg/d and the maximal dose was (82.4 +/- 30.5) mg/d. (9) Human gamma-globulin, interferon-alpha, antiviral drugs (oral ribavirin or oseltamivir) were used respectively in 68.6%, 46.9% and 92.7% of the patients. (10) Ninety-five patients (99.0%) had a complete clinical recovery, and only 1 patient (1.0%) died.

CONCLUSIONSSARS appears to be quickly infectious and potentially lethal among health care workers, characterized by acute onset and rapid progression, and mostly bilateral lung involvement on chest radiographs. Proper administration of glucocorticosteroids seems to be of some benefits. Antibiotics, human gamma-globulin, interferon-alpha, and antiviral drugs, although empirically, might be useful to shorten the clinical course.

Adult ; China ; epidemiology ; Cross Infection ; diagnosis ; epidemiology ; therapy ; Disease Outbreaks ; Female ; Humans ; Male ; Severe Acute Respiratory Syndrome ; diagnosis ; epidemiology ; therapy