Virulence and virulence factors
Virulence is not synonymous with pathogenicity (see also pathogenicity above), but describes the degree of damage that the pathogen has caused the host animal. A highly virulent bacterium is very contagious and/or gives severe symptoms. Thus, the infectious dose (ID) is lower for a high-virulent than for a low-virulent microorganism.
Virulence factors are the components that bacteria produce in order to:
Virulence genes are the genes encoding for virulence factors or components required for the synthesis of virulence factors.
|New families introduced within the order Enterobacterales|
The order Enterobacterales (formerly called Enterobacteriales) previously consisted of bacteria with different properties and phylogenetically, these bacteria were far apart. In order for the taxonomy to be more in line with phylogeny, some of these bacteria have, therefore, been sorted into 6 new families.Published 2022-04-13. Read more...