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Distribution of pathogenic bacteria and antimicrobial sensitivity of eye infections in Suzhou

International Journal of Ophthalmology(English edition) 2024年第4期17卷 700-706页

作者： Li Zhang Hai-Zhang You Guo-Hui Wang Wei Xu Jian-Shan Li Qing-Liang Zhao Shu Du Department of Hospital-Acquired Infection Control Lixiang Eye Hospital of Soochow UniversitySuzhou 215021Jiangsu ProvinceChina Department of Administrative Office Lixiang Eye Hospital of Soochow UniversitySuzhou 215021Jiangsu ProvinceChina Department of Clinical Laboratory Lixiang Eye Hospital of Soochow UniversitySuzhou 215021Jiangsu ProvinceChina Department of Pharmacy Lixiang Eye Hospital of Soochow UniversitySuzhou 215021Jiangsu ProvinceChina Department of Corneal and Lacrimal Passage Lixiang Eye Hospital of Soochow UniversitySuzhou 215021Jiangsu ProvinceChina Department of Fundus Diseases and Ocular Trauma Lixiang Eye Hospital of Soochow UniversitySuzhou 215021Jiangsu ProvinceChina

AIM:To investigate the types of bacteria in patients with eye infections in Suzhou and their drug resistance to commonly used antibacterial ***:The clinical data of 155 patients were retrospectively collected in this study,and the pathogenic bacteria species and drug resistance of each pathogenic bacteria were ***:Among the 155 patients(age from 12 to 87 years old,with an average age of 57,99 males and 56 females)with eye infections(160 eyes:74 in the left eye,76 in the right eye and 5 in both eyes,all of which were exogenous),71(45.81%)strains were gram-positive bacteria,23(14.84%)strains were gram-negative bacteria and 61(39.35%)strains were ***-positive bacteria were highly resistant to penicillin and erythromycin(78.87%and 46.48%respectively),but least resistant to vancomycin at ***-negative bacteria were highly resistant to cefoxitin and compound sulfamethoxazole(100%and 95.65%respectively),but least resistant to meropenem at *** of the resistance of gram-positive and gram-negative bacteria to some drugs revealed statistically significant differences(P<0.05)in the resistance of both to cefoxitin,cotrimoxazole,levofloxacin,cefuroxime,ceftriaxone and ceftazidime,and both had higher rates of resistance to gram-negative bacteria than to gram-positive *** distribution of bacterial infection strains showed that Staphylococcus epidermidis was the most common strain in the conjunctiva,cornea,aqueous humor or vitreous body and other eye ***,Fusarium and Pseudomonas aeruginosa were also among the most common strains of conjunctival and corneal ***:Gram-positive bacteria are the dominant bacteria in eye infections,followed by gram-negative bacteria and *** the resistance of gramnegative bacteria to multiple drugs,monitoring of bacteria should be strengthened in eye bacterial infections for effective prevention and control to reduce complications caused by eye infections.

关键词： eye infection pathogenic bacteria drug resistance antimicrobial sensitivity test

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Molecular Identification of Streptococcus pyogenes in Isolates from Children with Pharyngitis, Gezira State, Sudan 2022

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Advances in Microbiology 2022年第8期12卷 500-510页

作者： Minas Mohamed Balla Adil Mergani Mohamed Elamin A. M. E. Medani Adam Dawoud Abakar Department of Microbiology Faculty of Science University of Gezira Wad Medani Sudan Department of Molecular and Immunogenetics NCI University of Gezira Wad Medani Sudan Pediatric Cardiologist Faculty of Medicine University of Gezira Wad Medani Sudan Department of Medical Parasitology Faculty of Medical Laboratory Science University of Gezira Wad Medani Sudan

Background: Streptococcus pyogenes (Group A streptococcus) is an important Gram-positive human pathogen affected the upper respiratory tract, such as the tonsils and pharynx, and is also induces post-infection diseases such as rheumatic fever and glomerulonephritis. This study aim to isolate Streptococcus pyogenes from children with pharyngitis and to evaluate the molecular identification of S. pyogenes compared with conventional methods. Methods: A cross sectional study was conducted on total of 200 throat swab samples which were collected from children with pharyngitis referred to Wad medani Pediatric Teaching Hospital and Wad medani ENT hospital from January to November 2021. Demographic and clinical data were collected by questionnaire. Throat swabs were tested with the standard microbiological techniques to isolated Group A streptococcus (GAS). antimicrobial susceptibility testing was performed to all GAS isolates using the Kirby Bauer disk diffusion method according to clinical laboratory standard institute (CLSI) guidelines. Additionally, PCR was used to identify Spy 1258 gene of isolated bacteria. Results: From all throat swab samples screened, 51 isolates (25.5%) were identified as GAS. Antibiotic susceptibility testing revealed that all the GAS isolates were sensitive to Penicillin and Azithromycin. sensitivity to Erythromycin, Gentamicin, Clarithromycin, Amoxicillin and Cephalexin were 88.2%, 86.3%, 45.1%, 41.2%, 13.7%, respectively. Based on PCR identification of Spy 1258 gene the percentage of isolated bacteria was 21%. Conclusion: The rate of isolated Streptococcus pyogenes was 25.5% by conventional methods and 21% by PCR. The bacteria were sensitive to Penicillin and Azithromycin. The Spy 1258 gene was specific for detection of Streptococcus pyogenes.

关键词： antimicrobial sensitivity test Pharyngitis Spy 1258 Streptococcus pyogenes Sudan

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The Isolation of Vibrio cholera and Other Enteric Bacteria with Molecular Characterization of Vibrio cholera during the Outbreak of Baghdad/Iraq in 2015

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Advances in Microbiology 2016年第9期6卷 699-715页

作者： Sarab K. Jameel Mostafa A. Shafek Ali M. Abdulmohsen Nadira S. Mohamed Sarmad R. Naji Tuhama T. Mohammed AL-Yarmouk Teaching Hospital Baghdad Iraq Department of Gene Bank University of AL-Nahrain Baghdad Iraq

Vibrio cholera, causing acute watery diarrhea known as cholera disease, affects all ages and both genders. Cholera infection outbreaks in Iraq have been reported for several years. The recent cholera outbreak, emerged throughout 2015, was investigated using bacteriological laboratory tests, singleplex and multiplex PCR technique for the detection of V. cholera from stool samples. Furthermore the toxigenic potential coupled with the antibiotic susceptibility test for cholera and other bacteria were also investigated. The stool samples were collected from 5698 patients admitted to Al-Yarmouk Teaching hospital and health care centers in Baghdad/Al-Karkh, Iraq, from the 1st of August to the 30th of December 2015. The V. cholera was isolated from 194 cases (3.4% of the cases age between 21 - 50 years). In addition, other enteric infections: Salmonellosis and Shigellosis 7 and 21 respectively, protozoan parasite Giardia lamblia and Entamoeba histolytica 2 and 43 cases respectively were also reported. High percentage of V. cholera infection was detected in October (122 cases, 62.8%), compared with other enteric infections that show high percentage of diarrheal disease in September and November. The results have confirmed that the cholera outbreak was caused by V. cholera O1, biotype El Tor, and serotype Inaba. Seven virulence genes were identified ctxA, toxR, zot, ace, rfbO1, tcpA and ompW. Moreover, the cholera isolated strains were found sensitive to most antibiotic but resistant to nalidixic acid.

关键词： V. cholera Enteric Bacteria Diarrhea Outbreak Virulence Factor Genes Molecular Identification antimicrobial sensitivity test

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