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. 16 Kuczmog Z. Examination of virulence markers of West Nile virus. [A nyugat-nílusi vírus virulencia markereinek vizsgálata.] Thesis. Budapest, 2014. [Hungarian
virulence and zoonotic potential of Streptococcus suis . Sci Rep. 2016; 6: 28984. 4 Liu H, Gao XY, Fu SH, et al. Molecular evolution of emerging
. ( 2015 ): Antimicrobial resistance and virulence traits in Enterococcus strains isolated from dogs and cats . New Microbiol. 38 , 369 – 378 . Jung , W. K. , Shin , S. , Park , Y. K. , Lim , S-K. , Moon , D-C. , Park , K. T. and Park
of sepsis . Virulence 5 , 154 – 160 . Bonelli , F. , Meucci , V. , Divers , T. J. , Boccardo , A. , Pravettoni , D. , Meylan , M. , Belloli , A. G. and Sgorbini , M
[ 11–14 ]. In contrast to adult patients, the patients below 20 years of age usually experienced relatively mild symptoms and had a shorter duration of infection [ 11, 12, 15, 16 ]. Both children and adults were exposed to the same virulence of SARS
. , Koch , G. , Rottier , P. J. and Peeters , B. P. ( 2011 ): Virulence of Newcastle disease virus: what is known so far? . Vet. Res. 42 , 1 – 11 . Ezema , W. S. , Eze , D. C. , Shoyinka , S. V. O. and Okoye , J. O. A. ( 2016
can be transferred between bacteria, along with other antibacterial resistance genes and virulence genes ( Leinweber et al., 2018; Pinholt et al., 2019 ). van A plasmids have been characterised in VREfm from wild birds ( Oravcová et al., 2018 ) and
The association between putative virulence genes in Campylobacter jejuni clinical isolates, in vitro invasive capability and severity of infection is yet to be clearly described. We have characterized three virulence genes and correlated their presence with the severity of infection and in vitro invasiveness. We studied eight C. jejuni strains isolated from patients whose clinical data were scored to determine severity of infection. Cytolethal distending toxin (cdtB) , invasion associated marker (iam) and Campylobacter invasion antigen (ciaB) genes were detected by PCR and INT407 cells used for invasion assays. Two strains positive for all three genes were the most invasive and isolated from patients with the most severe infection. Four strains positive for two genes and two strains negative for all the three genes were identified. The two cdtB + ve / ciaB + ve strains were more invasive than the cdtB + ve / iam + ve strains. One of the cdtB − ve / ciaB − ve strains showed invasion levels similar to cdtB + ve / ciaB + ve strains, but the second strain had a non-invasive phenotype. The findings indicate a correlation between in vitro invasive capability, and the presence of all three genes. The pattern of association between invasiveness and molecular characterization suggests that the ciaB gene confers a more invasive capability.
plays an important role in surface-associated motility and in virulence [ 9 ]. Our aim was to characterize the mechanisms of quinolone resistance and to investigate the presence of the novel abaQ gene among A. baumannii clinical isolates causing VAP
2010 ; 192 : 5002 – 5017 . [4] Huang R , Li M , Gregory R . Bacterial interactions in dental biofilm . Virulence 2011 ; 2 : 435 – 444 . [5] Zitzmann ZU , Berglundh T . Definition and prevalence of peri-implant diseases . J Clin
