We analyzed the cost effectiveness of four different surgical methods (A,B,C and D) in treatment of hepatic echinococcosis.Totally 757 cases of hepatic echinococcosis surgery clinical data and cost information of hospitalized cases were collected from nine hospitals in Xinjiang during 2005-2013.The clinical effects,cost effectiveness ratio and incremental costeffectiveness ratio were analyzed and compared.The total complication rates were 15.8％,9.2％,0％ and 2.9％;the recurrence rates were 7.3％,6.2％,0％ and 0％;the cure rates were 77.8％,84.6％,100.0％ and 97.1％;the cost (RMB) were 11 947.3,18 543.6,25 510.7 and 18 877.4,cost-effectiveness ratio were 153.6,219.1,255.1 and 194.3,incremental cost-effectiveness ratio /C//E were 964.4,610.4 and 358.0 respectively for group A,B,C and D.The results after adjusting of price factor were consistent with original cost effectiveness analysis.The complete resection of inner and outer capsule (D) is the most effective and economical way of clinical operation and may worthy be promoted in treatment of hepatic echinococcosis.

We investigated serotype and resistance of Salmonella during pig slaughtering in Shandong Province,China,providing basic data for the risk assessment of Salmonella and for guiding the clinical medication.We used rapid classification kit to identify Salmonella serotype,adopted broth microdilution method to detect the resistance of 13 kinds drugs belong to 8 categories.Result showed that the identified 9 kinds of serotype were mainly S.derby and S.typhimurium.The resistance to 13 kinds drugs of 298 Salmonella were different.The higher percentage of tetracycline drugs as Doxycycline(DOX) and Tetracycline(TE) were 97.99％ and 80.20％,respectively,which was most sensitive to Colistine E.The resistant rate was only 2.01 ％,following by Amoxicillin/Clavulanic acid and Ofloxacin which were 2.35 ％ and 4.03％,and the multiple resistant rate was 81.88％.TE-DOX was the regnant drug-resistant spectrum.In conclusion,the predominant serotype of Salmonella in links of pig slaughtering in Shandong Province is S.derby,and resistance is different to the different drugs.The drug resistance of different slaughter links exist significant differences,multiple drug resistance is serious,and drug-resistant spectrum are varied.

Tuberculosis (TB) remains an enormous health burden worldwide.To date,Mycobacterium bovis Bacillus Calmette Guerin (BCG) is the unique anti-TB vaccine available for humans,which provides an important but limited protection from the Mycobacterium tuberculosis (Mtb) infection.It is therefore an urgent need to develop better vaccines and vaccination strategies to prevent the spread of Mtb infection.Heterologous prime-boost vaccination strategies using both BCG and novel anti-TB vaccines have been demonstrated to induce robust immune responses than BCG alone.We have previously demonstrated that a recombinant adenoviral vector Ad5-CEAB co-expressing CFP10,ESAT6,Ag85A and Ag85B of Mtb was able to induce robust antigen-specific immune responses in mice.In the present study,we examined immunological effects of Ad5-CEAB in the mice primed with BCG and boosted with a single dose of the virus via an intranasal route.Results demonstrated that this vaccination strategy could effectively induce strong antigen-specific mucosal and humoral immune responses.These immune responses were characterized with an increased productions of cytokines (IL-12 and IFN-γ),increased concentration of secretary IgA (sIgA) in bronchoalveolar lavage fluid (BALF) and serum IgG in mice in comparison with mice in BCG group.These data suggested that the regimen of BCG prime-single dose of Ad5-CEAB boosted strategy was novel for inducing antigen-specific immune responses in response to Mtb antigens in vivo,which warrants for further development of adenoviral-based vaccine against Mtb infection.

We investigated the carrying situation of Escherichia albertii from healthy people engaged in breeding and slaughtering poultry for a long time.We collected stool samples from people engaged in breeding and slaughtering poultry and other healthy people.After enriched with EC broth,eae-positive enrichment culture was directly streaked on MacConkey,and eaepositive lactose non-fermenting isolate was retained for further investigation.The 16S rDNA sequencing and multilocus sequence typing (MLST) were applied in the identification of E.albertii from suspected strains.Intimin subtypes and cdtB types of E.albertii strains were detected.Pulsed-field gel electrophoresis (PFGE) was used to detected genetic polymorphism of strains from this study and animal source ones.Results showed that two isolates were identified as E.albertii from 189 stools of people exposed to slaughtering chickens and ducks and one from 58 stools in control groups.No isolate was identified as E.albertii from 138 stools samples of people exposed to breeding poultry.Intimin subtypes of three isolates from stool samples were subtyped as sigma,iota 2,nu,and cdtB types were closely related to types Ⅱ/Ⅲ/Ⅴ.PFGE patterns of the three strains was distinguishable (＜80％ similarity),and appeared in different cluster with chickens,ducks and other sources of E.albertii strains.The rate of carrying E.albertii to a certain extent exist in healthy people engaged in slaughtering chickens and ducks,and the relationship between these strains and strains from poultry should be further investigated.

We studied the status of parasite pollution in fish and shrimps in Fujian Province,and provided basis for prevention and control of parasite pollution and food safety in aquatic products.Stratified random sampling method was used,and Fujian Province was divide into Eastern,Southern,Western,Northern and Central five regions of Fujian province.Based on the data collected from the five regions between 2012 and 2016,digestion and compression methods were conducted to detect the levels of parasite metacercariae and larvae in both freshwater and marine products.Results showed that the total parasitoid infection rate was 5.15％ (130/2 524).The infection rate of trematode metacercariae and nematode larvae were 3.72％ (94/2524) and 1.43％ (36/2 524),respectively.Twenty-eight marine aquatic species were investigated and the infection rate was 17.25 ％ (88/510),in the form of Anisakis infection.The parasite infection rates in the five regions were 10.38％ (27/260) in Mindong,5.84％ (27/462) inMinnan,4.63％ (30/648) in Minxi,4.64％ (29/625) in Minbei and 9.91％ (103/1 039) in Minzhong.The freshwater products in Fujian Province have been polluted by parasites and are area-depended.The infection rate of marine aquatic products is kept in a high level.Fujian Province should strengthen the food safety and health publicity,take effective prevention and control strategies,and use early warning mechanisms to insure the food safety in province.

Staphylococcus aureus,an important foodborne pathogen,can contaminate foods through variety of ways and produce enterotoxin that may cause Staphylococcal food poisoning.In addition to food safety problems,Staphylococcus aureus could also cause clinical infection.The study of its pathogenicity is not only beneficial to prevent and control foodborne diseases,but also provide a new point for clinical treatment.This paper analyzes the types and characteristics of common strains of Staphylococcus aureus in food,and summaries the effect of food processing on pathogenicity and the methods for pathogenicity research in order to provide reference for the related study on pathogenicity of Staphylococcus aureus.

Salmonella is an important zoonosis.China is the largest pork consumer.Contaminated pork is the main source of Salmonella disease at home and abroad.There are many swine Salmonella vaccine in use in Europe.Now the current swine Salmonella vaccine is a live attenuated vaccine,Salmonella can reduce colonization in pigs,and can induce immune response efficiently after the two immunizations.The control effect is poor,at this stage of swine vaccine cross protection research,type of Salmonella and vaccine antigen are not the same.This paper reviews the research progress of swine Salmonella vaccine.

We investigated the third-generation cephalosporins-resistant Shigella and its genotype in Ningbo,China,providing a basis for disease prevention and control.Pathogenic bacteria were analyzed by direct isolation combined with enrichment culture isolation.Antimicrobial susceptibility was determined by K-B disk diffusion method and PCR was used for detecting multidrug resistance genes like CTX-M,OXA,TEM and SHV.BLAST analysis was used to determine the genotype.Results showed that 69 strains of third-generation cephalosporins-resistant Shigella were detected by drug sensitivity screening,accounting for 74.19％ of ESBLs Shigella.Drug resistance gene CTX-M(CTM-M-1 and CTM-M-9),OXA and TEM were detected.The detection rate were 79.71％,79.01％ and 26.09％ respectively.With no CTX-M-2 and SHV,DNA sequence alignment showed CTX-M-1 group were mainly of CTX-M-15 type besides seven other types;CTX-M-9 group were mainly of CTX-M-14 type besides six other types;49 strains of OXA and 18 strains of TEM were sequenced to be type 1 (OXA-1 and TEM-1 type).The 21 Shigella strains carrying more than two drug resistance genes accounts for 30.43 ％.Shigella in Ningbo has high third-generation cephalosporins-resistance rate and many kinds of ESBLs enzymes were detected.The mainstream enzyme type was CTX-M,meanwhile they also carried a variety of drug resistance genes,which could bring difficulties to disease prevention and control.The high carrying rate of OXA-1 type suggests that we should pay more attention.The detection rate of group B was higher than that of group D,including not only the phenotype resistance but also the drug-resistance genes;these findings will be useful in the study of the drug resistance prevalence of Shigella.

We studied the genetic characteristics of Spermophilus in Shaanxi Province,China.The COI,Cyt-b gene were sequenced and the results were compared with those of dauricus from Inner Mongolia Keyouzhong Banner and Zhengxiangbai Banner,and S.alaschanicus from Haiyuan County of Ningxia.And genetic distance was analyzed and Neighbor-Joining tree was built.Results showed that the genetic distance of COI gene sequences between Spermophilus from Dingbian County in Shaanxi and S.alaschanicus in Ningxia was ≤0.5％,and the genetic distance was ranged from 7.9％ to 9.3％ with Citellus dauricus from Inner Mongolia.The genetic distance of Cyt-b gene between Spermophilus from Dingbian County in Shaanxi and S.alaschanicus in Ningxia was ≤2.2％,and ranged from 8.9％ to 11.2％ with Citellus dauricus from Inner Mongolia.The Neighbor-Joining tree of COI,Cyt-b gene showed two major clusters.One of them were clustered by Spermophilus from Dingbian County in Shaanxi and S.alaschanicus in Ningxia,and another one was Citellus dauricus from Inner Mongolia.The Neighbor-Joining tree of COI gene showed that all samples from Shaanxi Province clustered in a group.In conclusion,the Spermophilus in Shaanxi Province were S.alaschanicus.

We evaluated the patient in the early,advanced or healing phase of the disease by MRI in the treatment of chronic brucellosis spondylitis and to guide the clinical treatment.MRI images of 40 patients with clinically diagnosed chronic brucellosis spondylitis were analyzed retrospectively.The imaging findings of early,advanced and healing patients were summarized.MRI showed abnormal signals in the vertebral body,intervertebral disc,paraspinaI and psoas muscle.It is early stage if the intervertebral space was normal,and advanced stage if combined with interverbral space stenosis.It demonstrated short T1 and short T2 signal or similar to the normal vertebral body,combined with intervertebral space stenosis,for the healing stage.According to the specific imaging manifestations of chronic brucellar spondylitis in the course of disease development,it is possible to evaluate the clinical stage of the disease and guide the rational selection of clinical treatment.