Prevalence, localization and partial characterization of the genomic islands located in the integration hotspot of the EHOS.

Genes, open reading frames (ORFs) and DNA sequences known to be located on genomic islands of the EHOS. “+” represents that a product was amplified and “−” represents a negative result for the different DNA fragments investigated (results are depicted in more detail in Table S2).
aFragment size 1767 bp; orf20 present.
bFragment size 612 bp; orf20 absent.
cpossible positive result caused by cross-hybridization with the intB of the HPI.