Abstract: The present invention is directed to a novel isolated bacterial strain of the Streptococcus salivahus (S. salivahus) species. More in particular, a strain of the S. salivahus species deposited at BCCM under accession number LMG P-31813. Further, the present invention relates to a composition comprising an isolated bacterial strain of the S. salivahus species. In another aspect, the present invention further relates to the isolated bacterial strain according to the present invention or the composition according to the present invention for use in immunomodulation and/or in the treatment and/or prevention of infections of diseases.

Abstract: The present invention relates to novel isolated bacterial strains of the Dolosigranulum pigrum species and variants thereof having at least 99% sequence identity in its 16S rRNA gene to said novel strains. The present invention further relates to the use of these bacterial strains, and compositions comprising said strains for use as a probiotic, such as for improving or restoring the flora/microbiota of the respiratory tract and skin. The present invention further relates to the use of these bacterial strains as an antibacterial agent; for use in human or veterinary medicine; for use in the treatment of human or veterinary diseases; or for use in personal hygiene industry, food industry, cleaning industry, pharma industry, or biocontrol applications.