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Objective:To investigate and analyze a suspected case of hemorrhagic fever with renal syndrome (HFRS) complicated with dengue fever (DF) in Longhua District of Shenzhen City, so as to improve the level of diagnosis and monitoring of such case.Methods:The morbidity and treatment data of this case were analyzed retrospectively, and the results of blood routine, urine routine, dengue virus and Hantavirus antibody, nucleic acid test and other laboratory tests were collected, the epidemiological analysis included the history of travel, mosquito bite and rodent contact was did.Results:This case was 25-year-old male presented with fever (maximum body temperature 39.4 ℃), chills and fatigue. On the 5th day, he developed oliguria. The clinical laboratory results showed that the platelet count decreased, the urine routine was detected, and the sediment tube type was 86.32 μl. The serum samples were tested, positive for dengue virus NS1 antigen and IgM antibody, negative for viral nucleic acid; positive for IgM antibody of Hantavirus, positive for Hantavirus nucleic acid. This case had a history of contact with mice without any protection, no obvious epidemiological history of DF, this patient might be a suspected case of HFRS with DF.Conclusions:This patient may be a suspected case of HFRS with DF. The infectious source of HFRS is suspected to be rats.
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Objective To investigate the first human brucellosis outbreak in Fujian Province,aiming to identify the source,risk factors of infection,and recommend control measures.Methods Epidemiological investigation was conducted by combining with agricultural sector on human and animal in the incident area of Zhangzhou City of Fujian Province.Respondents included 17 professionals from the outbreak sheep farm,as well as 9 ones from four nearest farms (including 2 pig farms,1 sheep farm and 1 cow farm) in directions of eastern,southern,western and northern.Then information of cognitive level and daily protection on brucellosis among pasture breeding staffs through case studies were got,serum of pasture breeding staffs and animals was collected (including 262 from the outbreak sheep farm and 50 from another sheep farm which nearly 5 kilometres away) to detect brucellosis antibody,and sheep sources were investigated simultaneously.Results A total of 26 people were detected,the infection rate was 26.9％ (17 people,in the epidemic area),the other four farming units without brucellosis infection.In epidemic focus,seven human infections (5 confirmed cases,2 asymptomatic infected) were identified,with an infection rate 41.2％ (7/17) and the brucellosis antibody positive rate among sheep was 46.2％ (121/262),while no positive sheep in the nearest sheep farm (0/50).Both unprotected lamb handling and stillbirth treatment got a 100.0％ infection rate.Among the investigated professional staffs,92.3％ (24/26) had no awareness of clinical symptoms and signs of brucellosis,while 11.5％ (3/26) took protective measures when working.Conclusions Unquarantined sheep is the infection source of this brucellosis outbreak,unprotected lamb handling and stillbirth treatment are the main route of transmission.High sheep infection rate,lack of brucellosis awareness,precaution missing among pasture breeding staffs and animal quarantine are all contributing to this outbreak.
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Objective To clarify the source of infection of a student brucellosis case in Ningde City, make clear its influencing range as well as risk factors of transmission, then take measures to effectively control the epidemic.Methods Clue sampling was carried out, then the survey site village was chosen where the student case came from.①Fundamental state survey: resident population as well as the situation of livestock were collected.②Human outbreak investigation: detailed interview was carried out on the first case.Base on the principle of informed consent, serum samples were collected from breeders and those who had once contacted with sheep in order to detect brucellosis antibodies, then investigation was conducted on farmers to collect cognitive information;case searching was conducted by reviewing outpatient and inpatient records as well as government broadcasting.③Livestock epidemic: serum samples from some of the sheep were collected by agricultural sector.Results There were 200 households with 500 inhabitants in the survey site of Ningde City, among which there were 5 sheep feeding families and totally 154 sheep on hand.Patient was male, 12 years old, student.Sick on June 2nd, 2014,confirmed on July 5th.The patient's neighbor was a sheep farmer, he had once contacted with the sheep.Totally we collected 8 serum samples from livestock personnel, positive Brucella antibody was 4, with a positive rate 50％ (4/8);collected 15 serum samples from those contacted with sheep, positive Brucella antibody was 2, with a positive rate 13％ (2/15).Meanwhile, agricultural sector collected 17 sheep serum samples from these two sheep farms, among which there were 7 serum samples showing a positive Brucella antibodies, with a positive rate 41％ (7/17).After surveyed of 8 livestock breeding personnel and 15 livestock non-breeding personnel, we found that no one was familiar with the clinical characteristics and transmission of brucellosis.Conclusions The direct source of brucellosis infection is local infected sheep, general population has been involved in this epidemic.Brucellosis surveillance should be seriously carried out on both human and animal.Furthermore, improving the awareness of brucellosis among professionals as well as general population is eagerly needed and health education must be carried out immediately.
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Objective To design and synthesize a series of new type four hydrogen quinoline-benzyl/benzimidazole amine derivatives as a potential new inhibitor targeting auxiliary receptor CXCR 4, and determine their inhibitory activities to HIV-1.Methods Based on HIV-1 receptor CXCR4 inhibitors containing three nitrogen structure-activity motif and CCR5 partial hydrophobic pharmacophore , a series of new compounds were designed , synthesized and characterized by 1 HNMR and MS.The inhibitory activities of these compounds were determined using HIV-1 IIIB virus.Results and Conclusion Ten target compounds are synthesized .Four hydrogen quinoline-benzimidazole amine derivatives exhibit good anti-HIV activity(IC50 8 μmol/L).
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Objective To investigate the independent factors influencing the efficacy of pre-hospital CPR effect. Method The data base with 1376 cases was set up with EpiData software by means of questionnaires and the information was provided by the survivals from cardiopulmonary arrest( CA)saved with cardiopulmonary resuscitation(CPR), and the data were analyzed with SPSS 13.0 software to carry out binary logistic regression. Through single factor analysis, the factors with emerged statistical significance were chosen as variances. Results With regard to the restoration of spontaneous circulation(ROSC), the rescue did by the first witness was the protective factor(PF)( OR = 2.21, P = 0.001, 95.0% CI=1.356-3.602); the male was the risk factor(RF) contrasted with the female( OR = 0. 515, P =0. 006, 95.0%0 CI = 0.320 - 0. 26) ; ages between 20 and 29 years old had higher likelihood of ROSC than group ≥81 years old( OR = 3.241, P = 0.026, 95.0%CI = 1.146 -9.138); the length of CA time before CPR was RF(OR = 0.913, P = 0.000, 95.0%CI = 0.887-0.948);ventricular fibrillation(VF) was PF compared with asystole( OR = 5.092, P = 0.000, 95.0%CI=2.927 -8.861); electric shock was PF(OR = 3.384, P = 0.000, 95.0%CI = 2.033 - 5.635); epinephrine dosage 0 - 4 mg had higher likelihood of ROSC than > 5 nag dosage( OR = 3. 255, P = 0. 001, 95.0% CI = 1. 606 -6.597). In respect of probability about victims at the tittle reached hospital alive, ages of 2- 12 and 13 - 19 years old had higher rations than ≥81 years old( OR = 12.818, P = 0.029, 95.0% CI = 1.299 - 126.508)( OR = 10.505, P = 0.036, 95.0% CI = 1.161-95.058); the length of CA time before CPR was RF(OR =0.862, P = 0.000, 95.0%CI = 0.821-0.906); VF was PF compared with asystole(OR = 7.330, P =0.000, 95.0%CI = 3.962 - 13.560). Conclusions ECG change before CPR, rescue by the first witness,electric shock, the length of CA time before CPR, epinephrine dosage, gender and age were independent influencing factors of pre-hospital CPR for the emergency of ROSC. Age, the length of CA time before CPR and ECG before CPR were influencing factors of pre-hospital CPR for patients at the time transferred to hospital alive.
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Objective To understand the ethics conflict situations between the pre-hospital patients and ambulance staff's determinations. Methods Taking a survey among the pre-hospital emergency physicians(80 people)and nurses(248 people)by Questionnaire of ethics conflicts during pre-hospital emergeney service,to investigate the ethics conflict situations between the pre-hospital patients and ambulance staff's determinations. Resulls (8.046±6.990)%of the patients who needed treatments refused to be treated completely,and(14.544±10.558)%of them refused partially.(14.451±14.747)% of the patients who needed ambulance transport refused to be delivered.In the patients who refused treatments and transportation.payment problem accounted for(23.52±19.79)%,(22.22±20.84)%of them did not believe they needed.(5.77±4.47)%of them wished to die,(19.44.4±18.65)%of them were hard to be idenfified.Other reasons accounted for(30.08±25.78)%.(20.31.4±16.66)% of the patients refused the ambulance crews' judge for some state.(29.66.4±24.02)%of the patients who got the pre-hospital emergency service were not necessary to call an ambulance.(22.1 l±19.52)%of the patients' demand conflicted with pre-hospital emergency services network management system.Conclusions There exists some conflicts between the pre-hospital patients and ambulance crews' determinations.