Escherichia coli (abbreviated as E. coli) is a commensal (normal flora) in the gut of humans and warm-blooded animals. Most strains of E.coli are harmless, some even benefit the hosts by producing...
Month: April 2013
Pathogenicity islands (PAIs) are large groups of mobile genetic elements that are associated with pathogenicity and are located on the bacterial chromosome. These genetic elements are thought...
A category A substance (pathogen or agent) is “an infectious substance which is transported in a form that, when exposure to it occurs, is capable of causing permanent disability or...