1.The epidemiology and pathogeny investigation of two clusters of severe fever with thrombocytopenia syndrome disease outbreaking in Henan Province, 2022.
Yi LI ; Xiao Yang WANG ; Ya Fei LI ; Dong Xiao LI ; Xiao HU ; Lin ZHU ; Ai Guo YOU ; Hai Feng WANG ; Ying YE ; Wan Shen GUO ; Xue Yong HUANG
Chinese Journal of Preventive Medicine 2023;57(10):1719-1724
To investigate two clusters of severe fever with thrombocytopenia syndrome virus (SFTSV) in Xinyang City, Henan Province, in 2022, and analyze their causes, transmission route, risk factors, and the characteristics of virus genetic variation. Case search and case investigation were carried out according to the case definition. Blood samples from cases, family members and neighbors and samples of biological vectors were collected for RT-PCR to detect SFTSV. The whole genome sequencing and bioinformatics analysis were performed on the collected positive samples. A total of two clustered outbreaks occurred, involving two initial cases and ten secondary cases, all of which were family recurrent cases. Among them, nine secondary cases had close contact with the blood of the initial case, and it was determined that close contact with blood was the main risk factor for the two clustered outbreaks. After genome sequencing analysis, we found that the SFTSV genotype in two cases was type A, which was closely related to previous endemic strains in Xinyang. The nucleotide sequence of the SFTSV in the case was highly homologous, with a total of nine amino acid mutation sites in the coding region. It was not ruled out that its mutation sites might have an impact on the outbreak of the epidemic.
Humans
;
Severe Fever with Thrombocytopenia Syndrome/epidemiology*
;
Bunyaviridae Infections/epidemiology*
;
Thrombocytopenia/complications*
;
Phlebovirus/genetics*
;
Disease Outbreaks
;
China/epidemiology*
2.The epidemiology and pathogeny investigation of two clusters of severe fever with thrombocytopenia syndrome disease outbreaking in Henan Province, 2022.
Yi LI ; Xiao Yang WANG ; Ya Fei LI ; Dong Xiao LI ; Xiao HU ; Lin ZHU ; Ai Guo YOU ; Hai Feng WANG ; Ying YE ; Wan Shen GUO ; Xue Yong HUANG
Chinese Journal of Preventive Medicine 2023;57(10):1719-1724
To investigate two clusters of severe fever with thrombocytopenia syndrome virus (SFTSV) in Xinyang City, Henan Province, in 2022, and analyze their causes, transmission route, risk factors, and the characteristics of virus genetic variation. Case search and case investigation were carried out according to the case definition. Blood samples from cases, family members and neighbors and samples of biological vectors were collected for RT-PCR to detect SFTSV. The whole genome sequencing and bioinformatics analysis were performed on the collected positive samples. A total of two clustered outbreaks occurred, involving two initial cases and ten secondary cases, all of which were family recurrent cases. Among them, nine secondary cases had close contact with the blood of the initial case, and it was determined that close contact with blood was the main risk factor for the two clustered outbreaks. After genome sequencing analysis, we found that the SFTSV genotype in two cases was type A, which was closely related to previous endemic strains in Xinyang. The nucleotide sequence of the SFTSV in the case was highly homologous, with a total of nine amino acid mutation sites in the coding region. It was not ruled out that its mutation sites might have an impact on the outbreak of the epidemic.
Humans
;
Severe Fever with Thrombocytopenia Syndrome/epidemiology*
;
Bunyaviridae Infections/epidemiology*
;
Thrombocytopenia/complications*
;
Phlebovirus/genetics*
;
Disease Outbreaks
;
China/epidemiology*
3.Erythema and induration of the Bacillus Calmette-Guérin site for diagnosing Kawasaki disease.
Ann LOH ; Phek Hui Jade KUA ; Ze Lei TAN
Singapore medical journal 2019;60(2):89-93
INTRODUCTION:
Kawasaki disease (KD) is a challenging diagnosis. Erythema and induration of the Bacillus Calmette-Guérin (BCG) site is increasingly recognised as a significant clinical clue. However, there is little data to support its specificity for KD as compared to other febrile illnesses. We aimed to evaluate BCG reaction or induration as a diagnostic tool for KD.
METHODS:
A retrospective case-controlled study of patients discharged with a diagnosis of KD from 2007 to 2010 was conducted. Another group of patients admitted over the same period for possible KD, but later found not to have KD, served as control.
RESULTS:
Significantly more infants with KD (69.7%) had BCG site changes than older children (27.8%; p < 0.001). It also presented earlier in the course of KD; < 5 days (53.3%) compared to ≥ 5 days of fever (30.0%; p < 0.001). Positive predictive value of BCG site reaction or induration for KD was 90.8% (95% confidence interval [CI] 0.819-0.962) for infants and 96.2% (95% CI 0.868-0.995) for older children. The prevalence rate of changes at the BCG site was 9.9% among patients with non-KD febrile illnesses and 42.6% among patients with KD.
CONCLUSION
BCG site reaction or induration is a useful clinical clue for the diagnosis of KD in both infants and older children, with a higher prevalence in infants. Physicians should consider KD in children with febrile illness and redness or crust formation at the BCG site, especially in view of low rates of BCG reaction or induration in non-KD febrile illnesses.
BCG Vaccine
;
administration & dosage
;
adverse effects
;
Case-Control Studies
;
Child, Preschool
;
Erythema
;
complications
;
epidemiology
;
Female
;
Fever
;
complications
;
Humans
;
Infant
;
Male
;
Mucocutaneous Lymph Node Syndrome
;
complications
;
diagnosis
;
epidemiology
;
Risk Factors
;
Singapore
;
epidemiology
4.Study on the super-antigen genes of group A Streptococcus pyogenes strains isolated from patients with scarlet fever and pharyngeal infection, in Beijing, 2015-2017.
C N MA ; X M PENG ; S S WU ; D T ZHANG ; J C ZHAO ; G L LU ; Y PAN ; S J CUI ; Y M LIU ; W X SHI ; M ZHANG ; Q Y WANG ; P YANG
Chinese Journal of Epidemiology 2018;39(10):1375-1380
Objective: To analyze the characteristics of super-antigen (SAg) of group A Streptococcus pyogenes (GAS), isolated from patients with scarlet fever or pharyngeal infections in Beijing between 2015-2017. Methods: Throat swab specimens from patients with scarlet fever or pharyngeal infections were collected and tested for GAS. Eleven currently known SAg genes including SpeA, speC, speG, speH, speI, speJ, speK, speL, speM, smeZ and ssa were tested by real-time PCR while M protein genes (emm genes) were amplified and sequenced by PCR. Results: A total of 377 GAS were isolated from 6 801 throat swab specimens, with the positive rate as 5.5%. There were obvious changes noticed among speC, speG, speH and speK in three years. A total of 45 SAg genes profiles were observed, according to the SAgs inclusion. There were significant differences appeared in the frequencies among two of the highest SAg genes profiles between emm1 and emm12 strains (χ(2)=38.196, P<0.001; χ(2)=72.310, P<0.001). There also appeared significant differences in the frequencies of speA, speH, speI and speJ between emm1 and emm12 strains (χ(2)=146.154, P<0.001; χ(2)=52.31, P<0.001; χ(2)=58.43, P<0.001; χ(2)=144.70, P<0.001). Conclusions: Obvious changes were noticed among SAg genes including speC, speG, speH and speK from patients with scarlet fever or pharyngeal infections in Beijing between 2015-2017. SAg genes including speA, speH, speI and speJ appeared to be associated with the emm 1 and emm 12 strains. More kinds of SAg genes profiles were isolated form GAS but with no significant differences seen in the main SAg genes profiles, during the epidemic period.
Antigens, Bacterial/genetics*
;
Bacterial Outer Membrane Proteins
;
Bacterial Proteins
;
Beijing/epidemiology*
;
China/epidemiology*
;
Exotoxins
;
Female
;
Humans
;
Membrane Proteins
;
Pharyngitis/microbiology*
;
Pharynx/microbiology*
;
Pregnancy
;
Pregnancy Complications, Infectious/microbiology*
;
Real-Time Polymerase Chain Reaction
;
Scarlet Fever/microbiology*
;
Streptococcal Infections
;
Streptococcus pyogenes/isolation & purification*
;
Superantigens/genetics*
5.Clinical Characteristics and Factors Influencing the Occurrence of Acute Eosinophilic Pneumonia in Korean Military Personnel.
Chang Gyo YOON ; Se Jin KIM ; Kang KIM ; Ji Eun LEE ; Byung Woo JHUN
Journal of Korean Medical Science 2016;31(2):247-253
Acute eosinophilic pneumonia (AEP) is an uncommon inflammatory lung disease, and limited data exist concerning the clinical characteristics and factors that influence its occurrence. We retrospectively reviewed the records of AEP patients treated at Korean military hospitals between January 2007 and December 2013. In total, 333 patients were identified; their median age was 22 years, and all were men. All patients presented with acute respiratory symptoms (cough, sputum, dyspnea, or fever) and had elevated levels of inflammatory markers including median values of 13,185/microL for white blood cell count and 9.51 mg/dL for C-reactive protein. All patients showed diffuse ground glass opacity/consolidation, and most had pleural effusion (n = 265; 80%) or interlobular septal thickening (n = 265; 85%) on chest computed tomography. Most patients had normal body mass index (n = 255; 77%), and only 30 (9%) patients had underlying diseases including rhinitis, asthma, or atopic dermatitis. Most patients had recently changed smoking habits (n = 288; 87%) and were Army personnel (n = 297; 89%).The AEP incidence was higher in the Army group compared to the Navy or Air Force group for every year (P = 0.002). Both the number of patients and patients with high illness severity (oxygen requirement, intensive care unit admission, and pneumonia severity score class > or = III) tended to increase as seasonal temperatures rose. We describe the clinical characteristics of AEP and demonstrate that AEP patients have recently changed smoking habits and work for the Army. There is an increasing tendency in the numbers of patients and those with higher AEP severity with rising seasonal temperatures.
Acute Disease
;
Asian Continental Ancestry Group
;
C-Reactive Protein/analysis
;
Cough/etiology
;
Dyspnea/etiology
;
Fever/etiology
;
Humans
;
Incidence
;
Leukocyte Count
;
Male
;
Military Personnel
;
Pleural Effusion/complications/diagnosis/radiography
;
Pulmonary Eosinophilia/complications/*diagnosis/pathology
;
Republic of Korea/epidemiology
;
Retrospective Studies
;
Seasons
;
Severity of Illness Index
;
Smoking
;
Tomography, X-Ray Computed
;
Young Adult
6.Application of bundles of intervention in the treatment of esophageal carcinoma anastomotic leak.
Wenze TIAN ; Zhongwu HU ; Jian JI ; Dafu XU ; Zhenbing YOU ; Wei GUO ; Keping XU
Chinese Journal of Gastrointestinal Surgery 2016;19(9):1009-1013
OBJECTIVETo investigate the application of bundles of intervention in the treatment of esophageal carcinoma anastomotic leak.
METHODSFrom January 2014 to May 2015, 44 cases of esophageal carcinoma anastomotic fistula were treated by bundles of intervention (through the collection of a series of evidence-based treatment and care measures for the treatment of diseases) in Department of Thoracic Surgery, Huai'an First Hospital, Nanjing Medical University (bundles of intervention group), and 68 patients with esophageal carcinoma postoperative anastomotic leak from December 2013 to January 2012 receiving traditional therapy were selected as the control group. The clinical and nutritional indexes of both groups were compared.
RESULTSThere were no significant differences in general data and proportion of anastomotic leak between the two groups. Eleven patients died during hospital stay, including 3 cases in bundles of intervention group(6.8%) and 8 cases in control group (11.8%) without significant difference(P = 0.390). In bundles of intervention group, 1 case died of type III( intrathoracic anastomotic leak, 2 died of type IIII( intrathoracic anastomotic leak. In control group, 2 cases died of type III( cervical anastomotic leak, 2 died of type III( intrathoracic anastomotic leak and 4 of type IIII( intrathoracic anastomotic leak. The mortality of bundles of intervention group was lower than that of control group. The duration of moderate fever [(4.1±2.4) days vs. (8.3±4.4) days, t=6.171, P=0.001], the time of antibiotic use [(8.2±3.8) days vs.(12.8±5.2) days, t=5.134, P = 0.001], the healing time [(21.5±12.7) days vs.(32.2±15.8) days, t=3.610, P=0.001] were shorter, and the average hospitalization expenses[(63±12) thousand yuan vs. (74±19) thansand yuan, t=3.564, P=0.001] was lower in bundles of intervention group than those in control group. Forty-eight hours after occurrence of anastomotic leak, the levels of hemoglobin, albumin and prealbumin were similar in both groups. However, at the time of fistula healing, the levels of hemoglobin [(110.6±10.5) g/L vs.(103.8±11.1) g/L, t=3.090, P=0.002], albumin [(39.2±5.2) g/L vs.(36.3±5.9) g/L, t=2.543, P=0.013] and prealbumin [(129.3±61.9) g/L vs.(94.1±66.4) g/L, t=2.688, P=0.008] were significantly higher in bundles of intervention group.
CONCLUSIONIn the treatment of postoperative esophageal carcinoma anastomotic leak, application of bundles of intervention concept can significantly improve the nutritional status and improve the clinical outcomes.
Anastomotic Leak ; mortality ; therapy ; Anti-Infective Agents ; therapeutic use ; Carcinoma ; complications ; surgery ; Esophageal Fistula ; complications ; mortality ; therapy ; Esophageal Neoplasms ; complications ; surgery ; Esophagectomy ; adverse effects ; mortality ; Female ; Fever ; epidemiology ; etiology ; Hemoglobins ; metabolism ; Hospital Costs ; statistics & numerical data ; Humans ; Male ; Middle Aged ; Nutritional Status ; Patient Care Bundles ; mortality ; statistics & numerical data ; Prealbumin ; metabolism ; Serum Albumin ; metabolism ; Treatment Outcome
7.Clinical comparative analysis for pulmonary histoplasmosis and progressive disseminated histoplasmosis.
Yan ZHANG ; Xiaoli SU ; Yuanyuan LI ; Ruoxi HE ; Chengping HU ; Pinhua PAN
Journal of Central South University(Medical Sciences) 2016;41(12):1345-1351
To compare clinical features, diagnosis and therapeutic effect between pulmonary histoplasmosis and progressive disseminated histoplasmosis.
Methods: A retrospective analysis for 12 cases of hospitalized patients with histoplasmosis, who was admitted in Xiangya Hospital, Central South University during the time from February 2009 to October 2015, was carried out. Four cases of pulmonary histoplasmosis and 8 cases of progressive disseminated histoplasmosis were included. The differences of clinical features, imaging tests, means for diagnosis and prognosis were analyzed between the two types of histoplasmosis.
Results: The clinical manifestations of pulmonary histoplasmosis were mild, such as dry cough. However, the main clinical symptoms of progressive disseminated histoplasmosis were severe, including recurrence of high fever, superficial lymph node enlargement over the whole body, hepatosplenomegaly, accompanied by cough, abdominal pain, joint pain, skin changes, etc.Laboratory examination showed pancytopenia, abnormal liver function and abnormal coagulation function. One pulmonary case received the operation of left lower lung lobectomy, 3 cases of pulmonary histoplasmosis and 6 cases of progressive disseminated histoplasmosis patients were given deoxycholate amphotericin B, itraconazole, voriconazole or fluconazole for antifungal therapy. One disseminated case discharged from the hospital without treatment after diagnosis of histoplasmosis, and 1 disseminated case combined with severe pneumonia and active tuberculosis died ultimately.
Conclusion: As a rare fungal infection, histoplasmosis is easily to be misdiagnosed. The diagnostic criteria depends on etiology through bone marrow smear and tissues biopsy. Liposomeal amphotericin B, deoxycholate amphotericin B and itraconazole are recommended to treat infection for histoplasma capsulatum.
Abdominal Pain
;
etiology
;
Amphotericin B
;
therapeutic use
;
Antifungal Agents
;
therapeutic use
;
Biopsy
;
Cough
;
epidemiology
;
Death
;
Deoxycholic Acid
;
therapeutic use
;
Diagnostic Errors
;
Drug Combinations
;
Fever
;
etiology
;
Hepatomegaly
;
etiology
;
Histoplasma
;
Histoplasmosis
;
complications
;
diagnosis
;
mortality
;
therapy
;
Humans
;
Invasive Fungal Infections
;
complications
;
diagnosis
;
therapy
;
Itraconazole
;
therapeutic use
;
Lung
;
microbiology
;
surgery
;
Lung Diseases, Fungal
;
diagnosis
;
surgery
;
therapy
;
Pneumonia
;
complications
;
mortality
;
Recurrence
;
Retrospective Studies
;
Splenomegaly
;
etiology
;
Treatment Outcome
;
Tuberculosis
;
complications
;
mortality
8.Clinical analysis for patients with continuous ambulatory peritoneal dialysis associated peritonitis.
Jian LIU ; Xun HUANG ; Yao LIU ; Hui XU ; Rui'e GONG ; Chunhui LI
Journal of Central South University(Medical Sciences) 2016;41(12):1328-1333
To analyze the clinical characteristics of continuous ambulatory peritoneal dialysis (CAPD) associated peritonitis in the tertiary hospitals and to discuss the preventive and therapeutic strategy.
Methods: The clinical characteristics, pathogens, resistance and outcomes of 126 CAPD associated peritonitis in 104 patients from Jan, 2013 to June, 2016, were retrospectively analyzed.
Results: Among the patients, the incidence rates of abdominal pain, fever, diarrhea and emesis were 104 (82.54%), 56 (44.44%), 49 (38.89%), and 31 (23.60%), respectively. Among them, 88 patients suffered peritonitis once, other 16 patients suffered multiple peritonitis or recurrent peritonitis for 38 times. Among the 38 times, the numbers for recurrent, repeated or catheter-associated peritonitis were 2, 2, or 3, respectively. Peritoneal fluids from 103 cases were cultured, and 64 cases were positive in bacteria, with a rate of 62.14%. A total of 70 strains of bacteria were separated, including 42 strains of gram-positive bacteria, 21 strains of gram-negative bacteria, and 7 strains of fungus. The most common gram-positive pathogens were Staphylococcus epidermidis, Enterococcus faecalis and Staphylococcus haemolyticus, while Escherichia coli, Klebsiella pneumoniae and Klebsiella pneumoniae were the most common gram-negative bacteria. Candida albicans was the major fungal pathogens. Gram-positive cocci showed resistance to gentamycin, levofloxacin, moxifloxacin, vancomycin and linezolid, with a rate at 20.00%, 36.11%, 5%, 0%, and 0%, respectively. The gram-negative bacilli were resistent to cefoperazone/sulbactam, gentamycin, cephazolin, and ceftazidime, with a rate at 6.25%, 10.53%, 64.29%, and 15.38%, respectively. There were no imipenem, amikacin, piperacillin/tazobactam-resistant strains were found.
Conclusion: The most common pathogen causing CAPD associated peritonitis is gram-positive bacteria. It is crucial to take the anti-infection therapy for CAPD associated peritonitis early. The positive rates for bacterial culture need to be enhanced through improvement of methods. At the same time, doctors could improve the outcome of CAPD associated peritonitis by adjusting the medication according to the drug sensitivity results.
Abdominal Pain
;
epidemiology
;
Anti-Bacterial Agents
;
Bacteria
;
Bacterial Infections
;
epidemiology
;
microbiology
;
Candidiasis
;
epidemiology
;
Catheters
;
adverse effects
;
microbiology
;
Diarrhea
;
epidemiology
;
Drug Resistance, Bacterial
;
Enterococcus faecalis
;
Escherichia coli
;
Fever
;
epidemiology
;
Gram-Negative Bacteria
;
Gram-Positive Bacteria
;
Humans
;
Imipenem
;
Klebsiella pneumoniae
;
Microbial Sensitivity Tests
;
Mycoses
;
epidemiology
;
Penicillanic Acid
;
analogs & derivatives
;
Peritoneal Dialysis
;
Peritoneal Dialysis, Continuous Ambulatory
;
adverse effects
;
Peritonitis
;
complications
;
epidemiology
;
microbiology
;
Piperacillin
;
Piperacillin, Tazobactam Drug Combination
;
Recurrence
;
Retrospective Studies
;
Staphylococcus epidermidis
;
Staphylococcus haemolyticus
;
Vomiting
;
epidemiology
9.The proportion of fevers attributable to malaria varies significantly between sites in Papua New Guinea.
Hetzel MW ; Paul S ; Benjamin L ; Makita L ; Mueller I ; Siba PM
Papua New Guinea medical journal 2014;57(1-4):39-51
Malaria is endemic across lowland Papua New Guinea (PNG) and case management has been based on symptomatic diagnosis and presumptive treatment of fever cases with an antimalarial. This study aimed to investigate the prevalence of malaria infection among fever cases presenting to 5 purposely selected sentinel health facilities in order to estimate the proportion of patients requiring antimalarial drugs. A total of 1807 fever patients were screened. Overall, 45% of fever patients had a positive malaria blood slide; 35% were infected with Plasmodium falciparum, 9% with P. vivax and 2% with P. malariae. Slide positivity was highest in Dreikikir (75%) and lowest in Wipim (2%). Among patients aged 1-4 years, 22% had moderate to severe anaemia (Hb < 8 g/dI) and 21% of children 2-9 years of age showed signs of splenomegaly (Hackett score 1-5). Comorbidity differed significantly between study sites and was not closely correlated with malaria infection. Clinical diagnosis by health facility staff was malaria for 67% of all fever cases, including 89% of slide-positive and 48% of slide-negative patients. 70% of rapid diagnostic test-negative cases were treated with an antimalarial. It is estimated that due to the lack of parasitological diagnosis the selected health facilities reported an excess of 18% (Dreikikir) to 98% (Wipim) malaria patients on average each month. In consideration of the significant differences in malaria-attributable fevers between study sites, the implementation of parasitological diagnosis in health facilities and administration of antimalarials only to test-positive patients has the potential to significantly improve the management of fever cases and reporting of malaria. A better tailoring to different settings may increase the effectiveness of malaria control interventions.
Adolescent
;
Adult
;
Child
;
Child, Preschool
;
Female
;
Fever/*parasitology
;
Humans
;
Infant
;
Malaria/complications/diagnosis/*epidemiology
;
Male
;
Papua New Guinea/epidemiology
;
Young Adult
10.The use of repeated measures analysis of variance to study the effect of phlegm-heat syndrome on neurological deficits in patients with stroke.
Chinese journal of integrative medicine 2013;19(8):568-572
OBJECTIVETo explore the effect of phlegm-heat syndrome on the degree of neurological deficit and provide some data support for the correct recognition of the relationship between phlegm-heat syndrome and neurological deficits in stroke patients.
METHODSClinical information were collected on 294 patients with acute ischemic stroke (AIS) whose syndrome and National Institute of Health stroke scale (NIHSS) score were checked at baseline (within the first 3-day admission) and at 7, 14, 28, and 90 days after admission to our clinical research centre. We explored the effect of phlegm-heat syndrome on the degree of neurological deficit following stroke by applying a repeated measures analysis of variance.
RESULTSStroke patients with phlegm-heat syndrome had higher NIHSS score than patients without the syndrome (P <0.01), and there appeared to be a decrease in NIHSS score over time in all patients (P <0.01).
CONCLUSIONSPhlegm-heat syndrome in patients who have suffered stroke has an effect on the degree of neurological deficiency. Disappearance of phlegm-heat syndrome may improve the degree of neurological deficit observed in stroke patients.
Adult ; Aged ; Aged, 80 and over ; Analysis of Variance ; Diagnosis, Differential ; Fever ; complications ; diagnosis ; epidemiology ; Humans ; Medicine, Chinese Traditional ; Middle Aged ; Nervous System Diseases ; diagnosis ; epidemiology ; etiology ; Research Design ; Stroke ; complications ; diagnosis ; epidemiology ; Syndrome


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