Marina Scillato

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The use of bacteria as probiotics is in continuous development, thanks to their capacity to maintain or restore a host's natural microbiome by interference with and/or inhibition of other microorganisms mediated by antimicrobial peptide production such as bacteriocins. In the oral cavity, Streptococcus salivarius, a non-pathogenic and predominant oral(More)
We report 3 cases of fulminant hemorrhagic pneumonia in previously health patients. Sudden-onset hemoptysis and dyspnea developed; all 3 patients and died <12 h later of massive pulmonary bleeding, despite aggressive supportive care. Postmortem analysis showed that the illnesses were caused by group A Streptococcus emm1/sequence type 28 strains.
We report the isolation and characterization of an unusual strain of Streptococcus salivarius, 3C30, displaying both the macrolide-lincosamide-streptogramin B and the tetracycline resistance phenotypes. It harbours the mef(E), erm(B), and tet(M) genes carried by different genetic elements. The genetic element carrying mef(E), named mega, was investigated by(More)
This paper reports the results of the first study in which Streptococcus salivarius 24SMB, a safe α-haemolytic strain capable of producing bacteriocin-like substances with significant activity against acute otitis media (AOM) pathogens, was intranasally administered in an attempt to reduce the risk of new episodes of AOM in otitis-prone children. In this(More)
Streptococcus salivarius, a non-pathogenic species and the predominant colonizer of the oral microbiota, finds a wide application in the prevention of upper respiratory tract infections, also reducing the frequency of their main pathogens. In this pilot study, the primary objective was to evaluate the safety and tolerability of a nasal spray, S. salivarius(More)
In this paper, we describe, for the first time, the genetic organization of the blpU-like cassette in Streptococcus salivarius24SMBc by entire genome sequencing. This strain has recently been found useful and widely applied as an oral probiotic in the prevention of recurrent otitis media. The 24SMBc blpU-like cassette  is 8,023 bp in length, organized in 11(More)
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