2008年中国淋球菌临床分离株耐药性的流行病学研究

目的 通过对2008年淋球菌耐药监测结果进行分析,了解我国不同地区淋球菌耐药株的流行现状.方法 淋球菌株来自2008年全国淋球菌耐药监测点符合要求的951例淋病患者,其中江苏156例、浙江71例、福建102例、广东207例,广西77例、海南43例、新疆45例、陕西72例、四川80例、重庆44例、天津54例.通过纸片酸度定量法测定β-内酰胺酶,琼脂稀释法测定大观霉素、环丙沙星、头孢曲松钠、四环素对淋球菌的最小抑菌浓度(MIC).结果 大观霉素有2株耐药(0.21%),头孢曲松451株中度敏感(47.42%),质粒介导的高度耐四环素淋球菌(TRNG)487株(51.21%),产青霉素酶淋球菌(PPNG)332株(34.91%),环丙沙星928株耐药(97.58%).淋球菌对多种抗菌药物敏感性间的等级相关分析显示,TRNG阳性率与PPNG阳性率呈正相关(r=0.20,P<0.01),淋球菌对头孢曲松的敏感性与PPNG阳性率负相关r=-0.09,P<0.01),而淋球菌对头孢曲松的敏感性与对环丙沙星的敏感性及TRNG阳性率、淋球菌对环丙沙星的敏感性与PPNG阳性率及TRNG阳性率间没有相关性.卡方分析显示,各省收集的淋球菌对头孢曲松的中敏率之间相差比较大,广西、海南、新疆、陕西四省的中敏率(分别为87.01%、69.77%、82.22%、86.11%)高于总体水平(47.42%);陕西省有2株淋球菌对大观霉素耐药;各省收集的淋球菌对环丙沙星的耐药率较一致(86.11%～100%);广东省收集的淋球菌中TRNG的阳性率(68.60%)明显高于总体水平(51.21%);四川省、浙江省收集的淋球菌中PPNG的阳性率(分别为63.75%和54.93%)明显高于总体水平(34.91%)(P<0.05).结论 不同地区的淋球菌对抗生素的耐药性有明显的差别,其中陕西省收集的淋球菌对首选药物中头孢曲松的中度敏感率及对大观霉素的耐药率较高,应引起重视.

Abstract：

Objective To study the current status of antimicrobial resistance of clinical Neisseria gonorrhoeae isolates in China by analyzing the surveillance results in 2008.Methods N. gonorrhoeae strains were collected from 951 eligible patients at national monitoring sites for resistance of N. gonorrheae,including 156 patients from Jiangsu province,71 from Zhejiang province,102 from Fujian province,207 from Guangdong province,77 from Guangxi province,43 from Hainan province,80 from Sichuan province,44 from Chongqing,45 from Xinjiang Uygur Autonomous Region,72 from Shaanxi province,and 54 from Tianjin.The production of β-lactamase was detected by paper acidometric testing,and minimum inhibitory concentrations(MICs)were determined by agar dilution method for spectinomycin,ciprofloxacin,cefiriaxone,tetracycline,respectively.Results Among the 951 N. gonorrhoeae isolates,2(0.21%)were resistant to spectinomycin,451(47.42%)showed reduced sensitivity to ceflriaxone,928(97.58%)were resistant to ciprofloxacin.Penicillinase-producing N.gonorrhoeae (PPNG) and plasmid mediated tetracycline-resistant N. gonorrhoeae (TRNG) accounted for 34.91%(332/951)and 51.21%(487/951) of these isolates respectively.Kendall rank correlation analysis showed that there was a positive correlation between the positivity rate of TRNG and PPNG(r=0.20,P<0.01),but a negative correlation between the susceptibility to cefiriaxone in N.gonorrhoeae and positivity rate of PPNG(r=-0.09,P<0.01).No correlation was observed between the susceptibility to cefiriaxone and susceptibility to ciprofloxacin or the positivity rate of TRNG,or between the susceptibility to ciprofloxacin and positivity rate of PPNG or TRNG.Chi-square analysis showed a marked increase in the percentage of N.gonorrhoeae isolates with reduced susceptibility to ceftriaxone in Guangxi province,Hainan province,Xinjiang Uygur Autonomous Region and Shaanxi province,the percentage of N.gonorrhoeae isolates with resisitance to spectinomycin in Shaanxi province,prevelance of TRNG in Guangdong province,and prevelance of PPNG in Sichuan and Zhejiang provinces compared with the average level (all P<0.05).Conclusions Thero is a significant diffefence in antimicrobial susceptibility of N.gonorrhoeae from difierent areas of China.A significant elevation is observed in the percentage of N.gonorrhoeae with reduced susceptibihty to cefifiaxone and resistance to spectinomycin in Shaanxi province.to which close attention should be paid.     

2007-2009年全国淋球菌耐药监测实验室药敏试验室间质评结果分析

目的了解全国淋球菌耐药监测点药敏试验的检测水平,分析其影响因素及存在的问题,以提高我国淋球菌耐药监测点实验室药敏试验检测的质量.方法采用特快专递的方式,将质评样本集中统一发放到全国各淋球菌耐药监测点,由中国疾病预防控制中心性病控制中心将同报结果与预期结果进行比对分析.并将考评结果集中反馈给各参评单位.结果 2007-2009年间共发放室间质评考核样本35组,每组3份样本,合计105份,总回报率为88.57%(93/105).全国共有13个淋球菌耐药监测点参加了室间质评活动,3年间参评单位数分别为9、9、13,合格单位数分别为6、7、11.质评考核成绩的总合格率为77.42%(24/31).淋球菌的药敏检测结果符合率:提高的有质粒介导的产青霉素酶淋球菌、染色体介导的环丙沙星以及大观霉素耐药淋球菌;降低的有质粒介导的高度耐四环素淋球菌和染色体介导的头孢曲松耐药淋球菌.结论经过3年的室间质评,全国淋球菌耐药监测实验室药敏试验的整体检测质量得到了提高,其中产青霉素酶淋球菌、环丙沙星和大观霉素的药敏检测结果的符合率提升较快,而头孢曲松及质粒介导的高度耐四环素淋球菌的药敏检测质量有待提高.

Abstract：

Objective To make a nationwide external quality assessment for drug sensitivity testing of Neisseria gonorrhoeae, analyze the problems in and factors associated with the drug sensitivity testing, and to enhance the quality of drug sensitivity testing of N. gonorrhoeae at different monitoring sites. Methods Samples were uniformly delivered to monitoring sites by express mail service. Test results were analyzed in the National Center for STD Control, and the evaluation results were fed back to these monitoring sites. Results A total of 105 quality control samples were delivered from 2007 to 2009, with a response rate of 88.57% (93/105). Thirteen monitoring sites were enrolled in the external quality assessment, including 9 laboratories in 2007, 9 in 2008 and 13 in 2009. The total percentage amounted to 77.42% (24/31) for qualified laboratories during the 3 years, including 6 laboratories in 2007, 7 in 2008 and 11 in 2009. The coincidence rate increased for the detection of penicillinase-producing N. gonorrhoeae (PPNG), N. gonorrhoeae with chromosome-mediated ciprofloxacin resistance, and N. gonorrhoeae with chromosome-mediated spectinomycin resistance, and declined for the detection of N. gonorrhoeae with plasmid-mediated high level tetracycline-resistance (TRNG) and N. gonorrhoeae with chromosome-mediated ceftriaxone resistance. Conclusions The 3-year external quality assessment reveals an improvement in the overall quality of drug sensitivity testing of N. gonorrhoeae at national monitoring sites; the accuracy is improved markedly for the detection of PPNG, N. gonorrhoeae with resistance to spectinomycin and ciprofloxacin, but is needed to increase for the detection of ceftriaxone-resis- tant N. gonorrhoeae and TRNG.     

福州地区质粒介导淋球菌耐药性监测

目的：明确福州地区由质粒介导产生青霉素酶淋球菌(PPNG)菌株和由质粒介导产生高度耐四环素的淋球菌(TRNG)菌株的流行状况，以制定有效的淋病防治方案。方法：采用纸片酸度法和ⅧC测定法连续检测1999年～2002年间淋球菌分离株的质粒介导耐药情况。结果：4年来，共检测了698株临床分离的淋球菌菌株，PPNG流行率由1999年2．2％上升为2002年8．72％，TRNG由0．6％上升为20．69％。结论：福州地区PPNG、TRNG检查率呈逐年上升趋势，持续监测淋球菌PPNG菌株、TRNG菌株的流行情况，对淋病的防治有重要意义。     

165株淋球菌耐药性研究

了解济南地区淋球菌对5种抗菌药物的耐药性及PPNG和TRNG的流行状况,为淋病的有效治疗提供依据.采用琼脂稀释法测定抗菌药物的最低抑菌浓度(MIC)以及用纸片碘量法检测菌株的β-内酰胺酶.结果165株淋球菌检出PPNG 46株(27.9%)、TRNG 33株(20%);环丙沙星的耐药率达98.2%;头孢曲松、大观霉素没有发现耐药菌株,且抗菌活性最强.济南地区淋球菌耐药状况较为严重,头孢曲松和大观霉素可作为治疗淋病的首选药物.     

广东省汕头市92株淋球菌药物敏感性检测

目的：了解汕头地区2009年淋球菌对多种抗菌药物耐药的发生率及产β-内酰胺酶淋球菌（PPNG）和四环素高度耐药淋球菌（TRNG）的流行状况.方法：采用琼脂稀释法测定5种抗菌药物最低抑菌浓度（MIC）,纸片酸度法测定青霉素产β-内酰胺酶菌株.结果：92株淋球菌对青霉素耐药率为84.8%、四环素耐药率为89.1%、环丙沙星耐药率为92.4%;未发现大观霉素及头孢曲松耐药菌株.检出PPNG高达31株（33.7%）.TRNG为47株（51.1%）.青霉素﹑四环素和环丙沙星的MIC50及MIC90均已超过耐药标准.结论：大观霉素和头孢曲松为汕头地区治疗淋病的首选药物.     

淋球菌opa基因分型方法的建立与评估

Objective To establish a molecular typing method (opa-typing) for Neisseria gonorrhoeae, and to evaluate its performance based on epidemiological data. Methods Twenty-six gonorrhea patients were recruited from March to April 2006 at two sites, including 17 cases from the STD Clinic of Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College and 9 cases from the STD Clinic of Shandong Provincial Institute of Dermatology. Of the 26 patients, 6 were from three known sexual links, while the remaining 20 patients did not have any sexual contact with each other. The opa gene was amplified by using PCR from Neisseria gonorrhoeae isolates from these patients followed by overnight digestion with restriction enzymes Taq Ⅰ and Hpa Ⅱ. The enzyme digestion band patterns were analyzed using the Cel-Compar program. Results The opa gene was successfully amplified from all the 26 Neisseria gonorrhoeae strains, and restrictedly digested by endonucleases Taq Ⅰ and Hpa Ⅱ . Identical band patterns were observed between patients with sexual links, but not among the remaining 20 patients. Conclusions The results of opatyping of Neisseria gonorrhoeae coincide with the information on sexual behaviour provided by patients. Opatyping may serve as a reliable tool in sexual network analysis.     

珠海地区淋球菌对抗生素的耐药性分析

目的:了解珠海地区2010年度分离的淋球菌对青霉素、四环素、大观霉素、头孢曲松和环丙沙星的耐药性,分析产β-内酰胺酶淋球菌(PPNG)和四环素高度耐药淋球菌(TRNG)的流行状况.方法:采用琼脂稀释法测定菌株对5种抗生素的最小抑菌浓度(MIC);用纸片酸度法检测产β-内酰胺酶(PPNG)菌株.结果:105株淋球菌检出PPNG 33株(31 4%),TRNG 51株(48 6%);青霉素耐药率为60 1%,环丙沙星耐药率为100%,四环素耐药率为93 3%,其中同时对青霉素、四环素和环丙沙星三重耐药的有62株(59 1%);未发现大观霉素和头孢曲松耐药株,敏感性分别为100%和62 9%.结论:淋球菌对青霉素、四环素和环丙沙星的耐药率较高,壮观霉素和头孢曲松为珠海地区治疗淋病的首选药物.     

广州地区淋球菌营养分型和抗生素耐药性的研究

为了解广州地区淋球菌的营养型分布和4种抗生素的耐药性,以广州地区167株淋球菌进行MIC测定和PPNG检测,同时对其中113株淋球菌进行营养分型检测。结果显示,167株菌中检出PPNG菌株9株,TRNG16株,青霉素耐药株109株（65.3%）,环丙沙星耐药株131株（78.4%）,大观霉素、头孢曲松未发现耐药株。113株淋球菌分16种营养型,以Pro^-型、Proto型、Pro^-、Ile^-、Ile^-型、Pro^-Ile^-Ser^-型5种营养型为主,占86.5%,其余11种营养型占13.5%。青霉素和环丙沙星的耐药菌株主要分布于Pro^-型中,TRNG菌株主要分布于Ile^-型,PPNG菌株散在于各种营养型中。研究结果表明广州地区淋球菌的营养型和耐药性的分布状况,有助于该地区淋球菌的流行病学研究和淋病防治。     

珠海地区淋球菌对抗生素的耐药性分析

目的:了解珠海地区2010年度分离的淋球菌对青霉素、四环素、大观霉素、头孢曲松和环丙沙星的耐药性,分析产β-内酰胺酶淋球菌(PPNG)和四环素高度耐药淋球菌(TRNG)的流行状况。方法:采用琼脂稀释法测定菌株对5种抗生素的最小抑菌浓度(MIC);用纸片酸度法检测产β-内酰胺酶(PPNG)菌株。结果:105株淋球菌检出PPNG 33株(31.4%),TRNG 51株(48.6%);青霉素耐药率为60.1%,环丙沙星耐药率为100%,四环素耐药率为93.3%,其中同时对青霉素、四环素和环丙沙星三重耐药的有62株(59.1%);未发现大观霉素和头孢曲松耐药株,敏感性分别为100%和62.9%。结论:淋球菌对青霉素、四环素和环丙沙星的耐药率较高,壮观霉素和头孢曲松为珠海地区治疗淋病的首选药物。     

广西地区淋病患者淋病奈瑟菌对七种抗生素的耐药监测

目的分析2013-2016年广西地区性病门诊淋病患者临床分离菌株对常见的七种抗生素的敏感性。方法从广西地区部分医疗机构淋病患者尿道或宫颈收集分泌物培养,通过纸片酸度定量法测定β内酰胺酶,琼脂稀释法测定青霉素、头孢曲松、头孢克肟、大观霉素、环丙沙星、阿奇霉素和四环素的最小抑菌浓度(MIC)。结果 2013-2016年从淋病患者中共收集临床分离菌株437株,未发现头孢曲松、头孢克肟和大观霉素的耐药菌株。有427株(97.71%)菌株和372株(85.13%)菌株分别对环丙沙星和青霉素耐药。耐四环素淋球菌(TRNG)菌株和β内酰胺酶阳性菌株(PPNG)阳性菌株分别为191株(43.71%)和145株(33.18%)。淋球菌对阿奇霉素耐药率保持1%~8%的较低水平。TRNG菌株和PPNG菌株阳性率均呈上升趋势。结论 2013-2016年期间来自广西地区性病门诊淋病患者的菌株对大观霉素、头孢曲松和头孢克肟敏感,适合作为本地区治疗淋病患者的一线药物;对阿奇霉素有一定耐药,对环丙沙星和青霉素高度耐药,TRNG菌株和PPNG菌株逐年上升,可能与青霉素和四环素的滥用或不规则使用有关。     

南宁地区2009-2011年淋球菌抗生素耐药性的检测结果分析

目的了解淋球菌对5种抗生素的耐药情况,为制定淋病合理有效的治疗方案提供理论依据。方法对2009-2011年广西南宁地区分离的96株淋球菌,在系统鉴定的基础上,根据世界卫生组织(WHO)标准判定其敏感、中度敏感及耐药。结果 96株淋球菌中β-内酰胺酶(+)菌株为28株;质粒介导的高度耐四环素淋球菌TRNG(+)57株。环丙沙星耐药率为98.96%。头孢曲松和大观霉素未发现耐药菌株。结论南宁地区淋球菌耐药以环丙沙星为甚,四环素和青霉素次之。     

Surveillance of antimicrobial susceptibilities in Neisseria gonorrhoeae in Nanjing, China, 1999-2006

OBJECTIVE: To monitor the frequency and types of antibiotic resistance of Neisseria gonorrhoeae in Nanjing, China, between 1999 and 2006. METHODS: beta-Lactamase production was determined by paper acidometric testing. Minimum inhibitory concentrations (MICs) to penicillin, ceftriaxone, tetracycline, ciprofloxacin, and spectinomycin were determined by agar plate dilution. Plasmid types were determined for TRNG and PPNG isolates by PCR. RESULTS: One-thousand two-hundred and eight N. gonorrhoeae isolates were examined. The rate of PPNG rose from 8.0% (9 of 112) in 1999 to 57.36% (113 of 197) in 2004, and declined to 44.44% (88 of 198) in 2006. Prevalence of TRNG increased from 1.8% (2 of 112) in 1999 to 32.82% (65 of 198) in 2006. 99.23% (258 of 260) of TRNG contained the Dutch-type tetM gene and 2 strains contained the American-type tetM gene. All PPNG examined contained the Asian type plasmid. Among non-PPNG, chromosomally mediated resistance to penicillin varied from 57.84% (59 of 102) to 87.80% (72 of 82). Chromosomal resistance to ciprofloxacin (QRNG) was detected in 83.93% (94 of 112) of the strains in 1999 and 98.99% (196 of 198) in 2006. Eight spectinomycin-resistant N. gonorrhoeae strains were detected between 2001 and 2006. None of the gonococcal isolates tested was resistant to ceftriaxone but decreased susceptibility was observed in some strains. CONCLUSIONS: Among N. gonorrhoeae strains isolated in Nanjing, China, plasmid mediated resistance including PPNG and TRNG increased significantly between 1999 and 2006. Chromosomally mediated resistance to both penicillin and ciprofloxacin was also high during this period. Spectinomycin resistance of N. gonorrhoeae was sporadic. Ceftriaxone and spectinomycin can be considered effective antimicrobial agents for the treatment of gonorrhea in Nanjing at the present time.     

淋球菌130株对7种抗生素的耐药性结果分析

目的了解2018年本单位淋球菌对7种抗生素耐药趋势及产青霉素酶淋球菌(PPNG)和质粒介导的高度耐四环素淋球菌(TRNG)流行情况。方法琼脂稀释法测定青霉素、四环素、环丙沙星、大观霉素、阿奇霉素、头孢曲松、头孢克肟的最低抑菌浓度(MIC),根据世界卫生组织(WHO)的标准判定其敏感性;用纸片碘量法检测β-内酰胺酶。结果 130株淋球菌检出PPNG达43.85%(57/130),(TRNG)达22.31%(29/130),环丙沙星耐药率高达96.92%(126/130),阿奇霉素耐药率达16.15%(21/130),大观霉素未发现耐药菌,头孢曲松、头孢克肟敏感率都是90.77%(118/130),中度敏感率达9.23%(12/130)。结论头孢曲松、头孢克肟、大观霉素都未见耐药菌株,仍可推荐为广州地区淋病患者首选药物,但前二者中度敏感率呈动态变化,提示临床应长期监测耐药性动态变化的重要性。     

1988-2002年上海分离的淋球菌对抗菌药的敏感性监测

目的 了解上海地区1988-2002年淋球菌对多种抗菌药耐药的发生率、流行情况和耐药特征.方法 采用琼脂稀释法测定抗菌药耐药性,纸片酸度定量法测定青霉素产β-内酰胺酶菌株(PPNG).结果 青霉素敏感性从1988年的11.28%降至2002年的0,MIC50和MIC90分别增加了8倍和4倍,2002年的耐药率达到94.29%,PPNG株达到了50.95%;高度耐四环素株(TRNG)从1995年的0上升到2002年的20.95%;头孢曲松敏感株已由1995年的100%下降至2002年的23.80%;大观霉素的敏感性维持在高点(>97%);环丙沙星敏感性有较大幅度下降,其耐药率在2002年达到了99.05%.分析多重耐药株,同为耐青霉素、环丙沙星和四环素3种药物的菌株从2001年的20.87%上升到2002年的23.30%.同为耐青霉素和环丙沙星2种药物的菌株近2年都已接近70%.结论 近15年来,淋球菌对多种药物产生了耐药,耐药率逐年提高.建议上海地区将大观霉素和头孢曲松作为治疗淋病的首选药物,并且尽早研制出对淋球菌敏感的抗菌药.     

100株淋球菌对7种抗生素的耐药性结果分析

 目的:监测2019年本单位淋球菌对7种抗生素的耐药性趋势及产青霉素酶淋球菌(PPNG)和质粒介导的高度耐四环素淋球菌(TRNG)流行情况，为临床有效选择抗生素提供实验室依据。方法：收集本单位门诊临床分离培养的100株淋球菌，用琼脂稀释法测定青霉素、四环素、环丙沙星、大观霉素、阿奇霉素、头孢曲松、头孢克肟的最低抑菌浓度（MIC）；用纸片碘量法检测β 内酰胺酶。结果：产青霉素酶淋球菌（PPNG）株占35％（35/100），质粒介导的高度耐四环素淋球菌（TRNG）株占32％（32/100）。环丙沙星和青霉素的耐药率分别高达99％（99/100）、93%（93/100）。阿奇霉素耐药率达10%（10/100）。头孢曲松和头孢克肟未见耐药菌株，低敏率分别为22%（22/100）和19%（19/100），敏感率分别为78%（78/100）和81%（81/100）。大观霉素未发现耐药菌株和低敏菌株。结论：头孢曲松、头孢克肟、大观霉素仍可推荐为广州地区淋病患者首选药物。建议临床制定合理抗菌治疗方案以提供科学指导时，应长期监测淋球菌耐药性。     

1999年广州地区所见淋球菌对抗生素耐药性结果分析

目的：了解广州地区所见淋球菌对抗生素的耐药性及产青酶淋球菌（PPNG）和高水平耐四环素淋球菌（TRNG）的流行状况。方法：用琼脂稀释法测定最低抑菌浓度（MIC）以及用纸片碘量法检测β-内酰胺酶。结果167株淋球菌检出PPNG9株（5.4%)、TRNG16株（9.6%)、环丙沙星耐药率达78.4%,高度耐药株（MIC≥16mg/L)37株（22.2%)，头孢三嗪、壮观霉素未发现耐药菌株，且抗菌活性最强，头孢三嗪敏感性呈上升趋势。结论：持续监测淋球菌的耐药性十分重要。     

1999-2002年南京地区淋球菌分离株抗生素敏感性监测

目的 监测南京地区淋球菌对抗生素的耐药性,报告1999-2002年的结果。方法 采用纸片酸度定量法测定菌株是否产β-内酰胺酶。采用琼脂稀释法测定青霉素、四环素、环丙沙星、大观霉素和头孢曲松对淋球菌的最小抑菌浓度(MIC)。结果 共对417株淋球菌进行了检测,产青霉素酶淋球菌(PPNG)的阳性率由1999年的8.0%上升到2002年的31.31%(P<0.001),质粒介导的耐四环素淋球菌(TRNG)的阳性率由1999年的1.8%上升到2002年的22.2%(P<0.001)。在非PPNG中,染色体介导的青霉素耐药菌株的阳性率介于64.08%~87.80%。耐环丙沙星淋球菌的阳性率介于83.93%~97.17%。未检出对头孢曲松耐药的淋球菌,但低敏菌株的比例从1999年的17.9%上升到2002年的50.5%(P<0.005)。在2001与2002年各检测出1株对大观霉素耐药的淋球菌。结论 南京地区分离的淋球菌中,质粒介导的耐药性(包括PPNG和TRNG)增长速度较快,染色体介导的对青霉素和环丙沙星耐药的淋球菌比例很高,大观霉素耐药性淋球菌偶见。头孢曲松和大观霉素为治疗淋病的有效药物。     

淋球菌耐药监测15年

目的:了解我国1987～2001年淋病流行中的淋球菌对抗生素的敏感性,为修改淋病治疗方案和制订防治策略提供依据.方法:用琼脂稀释法检测淋球菌对WHO规定的5种核心抗生素的敏感性,用纸片酸度法测定淋球菌产青霉素酶(PPNG)菌株.结果:15年来用琼脂稀释法共检测了7583株菌,青霉素耐药株5399株,占71.20%;PPNG株占17.71%(1056/5964).四环素的耐药株占92.61%(1090/1177);由质粒介导的高度耐四环素淋球茵茵株(TRNG)占14.03%(811/5779).对环丙沙星的耐药性迅速增高,占61.12%(3311/5417).对大观霉素和头孢曲松的耐药菌百分率较低,分别为0.41%(26/6342)和0.39%(23/5853).对南京地区1993～1995年和1999～2001年大观霉素和头孢曲松对淋球菌的MIC50作了比较,结果显示MIC50值并无明显变化.结论:我国近15年流行的淋球菌对青霉素、四环素和环丙沙星的耐药性相当高,而对大观霉素和头孢曲松仍较敏感.为了防止淋球菌耐药菌株的进一步传播应强调对淋病病人进行范围治疗.