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猪链球菌病是由几种主要链球菌引起的,常表现为猪急性败血症、脑炎、局灶性淋巴结化脓、慢性关节炎及心内膜炎。而仔猪主要是急性败血症及脑炎,部分淋巴结化脓。 相似文献
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In order to detect Enterococcus faecalis endocarditis antigen (EfaA) of bear that was used to disclose the infected Northeast Black bear immediately, a pair of PCR primers was synthesized by EfaA gene of Enterococcus faecalis that was recorded in GenBank (accession number:U03756.1) and the target fragment was 689 bp. The PCR product was cloned by pMD19-T vector, then was transferred to Escherichia coli DH5α competent cells and the positive clones were filtered. Recombinant plasmid (pMD19-T-EfaA) was extracted. Identification of PCR and digestion, sequencing, the structure prediction of proteins were operated. The results showed that EfaA gene was cloned successfully, and the gene homology with ATCC 29212 was 100.0%. pMD19-T-EfaA was constructed successfully, structure of proteins was predicted. This study provided theoretical basis for diagnostic methods of Enterococcus faecalis and laid basis for prevention and control of Northeast Black bear disease. 相似文献
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目的了解近年来感染性心内膜炎(IE)患者的细菌学情况及其临床特点。方法回顾性分析1997年1月至2007年7月住院治疗的43例IE患者的临床资料,包括血培养和超声检查等。结果43例中,风湿性心脏病12例(27.9%),先天性心脏病4例(9.3%)、二尖瓣脱垂4例(9.3%),分别居基础心脏病的前3位;细菌培养43例,阳性29例(67.5%),其中主要致病菌为金黄色葡萄球菌儿例(25.6%)、甲型溶血性链球菌7例(16.3%)、肠球菌2例(4.7%)。结论近年的感染性心内膜炎病原学呈现复杂多样化的、分散化的特点,风湿性心脏病目前为其常见基础心脏病。 相似文献
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本论文采用2000年与2001年两年的病例分析,结果表明,锯茸是感染本病的主要途径. 相似文献